{"title":"Astell \u0026 Kern","description":"\u003cp\u003eAstell \u0026amp; Kern makes the players that define portable high-end audio: the A\u0026amp;norma SR35, the KANN MAX and KANN Ultra for power, the SE300 and the A\u0026amp;ultima SP3000 flagship, plus the ACRO BE100 Bluetooth speaker.\u003c\/p\u003e\n\u003cp\u003eSee all \u003ca href=\"\/collections\/android-players\"\u003eAndroid players\u003c\/a\u003e and \u003ca href=\"\/collections\/speakers\"\u003espeakers\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFree next day UK delivery on eligible orders over £50, and free change-of-mind returns. Not sure what suits you? \u003ca href=\"\/pages\/contact\"\u003eAsk us\u003c\/a\u003e: real people, expert advice.\u003c\/p\u003e","products":[{"product_id":"astell-kern-acro-be100-bluetooth-speaker","title":"Astell\u0026Kern ACRO BE100 Bluetooth Speaker","description":"\u003cp\u003eThe Astell\u0026amp;Kern ACRO BE100 is a stereo Bluetooth speaker built like a piece of hi-fi. Where most Bluetooth speakers use the basic DAC inside their Bluetooth chip, the BE100 has a dedicated 32-bit DAC and separate circuitry, based on Astell\u0026amp;Kern’s portable players. A custom 4-inch Kevlar woofer and two 1.5-inch silk dome tweeters, driven by 55W of Class D amplification, fill a room with stereo sound, and it streams 24-bit aptX HD and LDAC, which Astell\u0026amp;Kern says made it the first Bluetooth speaker to support both.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKBE100_1000x446_2096a175-e54f-4866-91eb-9bcf72e99dc2.jpg?v=1767167621\" alt=\"Astell\u0026amp;Kern ACRO BE100 Bluetooth speakers in black and white\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eLight, shadow and edge\u003c\/h3\u003e\n\u003cp\u003eMetal, wood and premium PU leather come together seamlessly in Astell\u0026amp;Kern’s signature language of light and shadow. The front grille’s edges meet at one point in an asymmetric, triangle-based pattern, balanced so that areas of light and shadow give the box a solid, stable look that changes as you move around it. The knurled aluminium knob on top adjusts the volume step by step with a gentle touch, and the area below it lights up in different colours for each mode and volume level, so you can see the speaker’s status at a glance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-acro-be100-bluetooth-speaker-photo-living-room.jpg?v=1791403504\" alt=\"Astell\u0026amp;Kern ACRO BE100 in a living room\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA dedicated 32-bit DAC\u003c\/h3\u003e\n\u003cp\u003eDigital music has to be converted to analogue before you can hear it. Most Bluetooth speakers rely on the DAC embedded in the Bluetooth chip, which limits the sound. The BE100 uses a 32-bit hi-fi DAC on its own circuit, drawing on the technology and expertise behind Astell\u0026amp;Kern’s players, to keep the authentic detail of analogue sound.\u003c\/p\u003e\n\u003ch3\u003eCustom drivers for true stereo\u003c\/h3\u003e\n\u003cp\u003eThe 4-inch woofer is made of ultra-durable, lightweight Kevlar fabric, for faster response and more accurate, solid bass, and a rear port extends the bass. Two silk dome tweeters give crystal-clear treble. Astell\u0026amp;Kern worked to find the ideal positions for the woofer and tweeters so the BE100 plays real stereo, not mono. Inside, sound-absorbing material lines the wooden cabinet and seals the interior, reducing resonance for a full, rich sound.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-acro-be100-bluetooth-speaker-photo-rear.jpg?v=1791403507\" alt=\"Rear of the Astell\u0026amp;Kern ACRO BE100 with its bass port and connections\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eAmplification without clipping\u003c\/h3\u003e\n\u003cp\u003eA poorly designed speaker amplifier can clip at full output. The BE100’s high-end Class D amplifier, designed by Astell\u0026amp;Kern, reaches its maximum power cleanly, without distortion, and gives 55W in total from a compact cabinet (25W × 1 + 15W × 2). A digital crossover splits the frequencies precisely so they don’t mix, dynamic range control (DRC) protects the drivers at maximum output, and a 50ps clock in the Bluetooth section minimises jitter for accurate sound.\u003c\/p\u003e\n\u003ch3\u003eBluetooth or AUX, tuned for each\u003c\/h3\u003e\n\u003cp\u003eBluetooth 5.0 gives a stable connection with greater range, with SBC, AAC, aptX HD (24-bit\/48kHz) and LDAC (24-bit\/96kHz). The 3.5mm AUX input connects a phone or a portable music player by cable. Astell\u0026amp;Kern tuned the sound separately for each connection mode, allowing for reverb and internal resonance, so voices and instruments separate naturally whatever you play.\u003c\/p\u003e\n\u003cp\u003eIndependent treble and bass controls, five levels each, let you shape the sound, and the front LED display shows the mode and settings: BTP (pairing), BT (Bluetooth), AUX, and TREB or BASS 0–5.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-acro-be100-bluetooth-speaker-photo-knob.jpg?v=1791403511\" alt=\"Knurled aluminium volume knob of the Astell\u0026amp;Kern ACRO BE100\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKBE100_1000x673_dcdf8133-53d5-4a9a-9560-951c0cb17db8.jpg?v=1767167624\" alt=\"Astell\u0026amp;Kern ACRO BE100 speaker\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-acro-be100-bluetooth-speaker-photo-white.jpg?v=1791403516\" alt=\"Astell\u0026amp;Kern ACRO BE100 in white\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eStereo Bluetooth speaker, 32-bit DAC, Class D amplifier with digital crossover and DRC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrivers\u003c\/th\u003e\n\u003ctd\u003e4-inch Kevlar woofer · 2 × 1.5-inch silk dome tweeters · rear port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier\u003c\/th\u003e\n\u003ctd\u003e55W (25W + 2 × 15W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e50Hz–20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum level\u003c\/th\u003e\n\u003ctd\u003e94dB SPL at 1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs\u003c\/th\u003e\n\u003ctd\u003eBluetooth 5.0 (SBC, AAC, aptX HD, LDAC) · 3.5mm AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eVolume knob · treble and bass, five levels each · 14-segment display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e19V, 3.43A input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e261 × 164 × 171mm · about 3.2kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMains powered (no battery). Colours: black or white.\u003c\/li\u003e\n\u003cli\u003eThis item is ordered on demand and may take longer than our usual 2–4 working days.\u003c\/li\u003e\n\u003cli\u003eIn the box: ACRO BE100, power cable and quick start guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-acro-be100-bluetooth-speaker-photo-sideboard.jpg?v=1791403519\" alt=\"Astell\u0026amp;Kern ACRO BE100 on a sideboard\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Astell \u0026 Kern","offers":[{"title":"BLACK","offer_id":57115852145027,"sku":"AKBE100-BLACK","price":449.0,"currency_code":"GBP","in_stock":true},{"title":"WHITE","offer_id":57115852177795,"sku":"AKBE100-WHITE","price":449.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_4c9e3f1d-60ab-4e80-8a7b-8719fa8c1619.jpg?v=1767167644"},{"product_id":"astell-kern-kann-max-digital-audio-player","title":"Astell\u0026Kern KANN MAX Digital Audio Player","description":"\u003cp\u003eThe Astell\u0026amp;Kern KANN MAX is the fourth player in the KANN series, the line audiophiles love for high output and clear sound, and it is smaller, lighter and more powerful than the KANN ALPHA. Four ESS ES9038Q2M DACs feed an amplifier with four gain levels and up to 15Vrms balanced, an output Astell\u0026amp;Kern says was previously only possible from a desktop headphone amplifier, so it drives even demanding high-impedance headphones. It plays up to 32-bit\/768kHz bit-to-bit and native DSD512, and runs for about 13 hours.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKKANNMAX_1000x430_05d36827-ba7c-4673-8a27-25dbe9006687.jpg?v=1767174384\" alt=\"Astell\u0026amp;Kern KANN MAX digital audio player\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eUltra-high output in a smaller player\u003c\/h3\u003e\n\u003cp\u003eKANN MAX takes the series to the next level: 15Vrms balanced and 8Vrms unbalanced at super gain, in a body smaller and lighter than the KANN ALPHA, the most portable KANN until then. Astell\u0026amp;Kern analysed every power-related component and redesigned the power circuit several times to reach 13 hours of continuous playback.\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eGain\u003c\/th\u003e\n\u003ctd\u003eUnbalanced · balanced (no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuper\u003c\/th\u003e\n\u003ctd\u003e8Vrms · 15Vrms (KANN MAX only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHigh\u003c\/th\u003e\n\u003ctd\u003e6Vrms · 12Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMid\u003c\/th\u003e\n\u003ctd\u003e4Vrms · 8Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLow\u003c\/th\u003e\n\u003ctd\u003e2Vrms · 4Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eHigh output with low noise\u003c\/h3\u003e\n\u003cp\u003eAs output rises, so does noise, and Astell\u0026amp;Kern wanted the original sound without compromise. KANN MAX uses an analogue volume control for a rich dynamic range without loss. The audio circuit is split into DAC, volume and amplifier blocks, each with its own power supply IC, so each gets stable power and the ripple noise of the DC-DC supply is removed, minimising noise that an op-amp would otherwise amplify. To fit it all in, the PCB, the same size as the KANN ALPHA’s, is divided into 12 layers, and the physical size of the amplifier parts was reviewed.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-max-digital-audio-player-photo-power-blocks.jpg?v=1791402878\" alt=\"Separate power supplies for the DAC, volume and amplifier blocks of the Astell\u0026amp;Kern KANN MAX\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eQuad DAC\u003c\/h3\u003e\n\u003cp\u003eKANN MAX is the first KANN with four ES9038Q2M DACs. With quad DACs, a DAC can be allocated entirely to a channel, expressing the depth and realism of the recording to the full. Combined with Astell\u0026amp;Kern’s amplifier circuit, which brings out the DAC’s strengths naturally, the music comes through as the original sound, without distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-max-digital-audio-player-photo-quad-dac.jpg?v=1791402882\" alt=\"Quad DAC audio block diagram of the Astell\u0026amp;Kern KANN MAX\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003eTo minimise contact noise, the headphone jacks are coated with gold by PVD instead of using the usual rings, which also improves the look.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKKANNMAX_800x468_a877fcbe-a5d1-4c1a-bb1f-4ac87c30ef54.jpg?v=1767174387\" alt=\"Gold PVD-coated 2.5mm, 4.4mm and 3.5mm outputs of the Astell\u0026amp;Kern KANN MAX\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTERATON ALPHA and hi-res playback\u003c\/h3\u003e\n\u003cp\u003eTERATON ALPHA is Astell\u0026amp;Kern’s own sound solution, built on its patented technologies from tens of thousands of hours of research: effective power-noise removal, efficient power management and amplification with minimal distortion, for playback close to the original sound. PCM plays bit-to-bit up to 32-bit\/768kHz, and DSD natively up to 22.4MHz (DSD512). KANN MAX also plays MQA files and streams.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-max-digital-audio-player-photo-teraton.jpg?v=1791402886\" alt=\"TERATON ALPHA sound solution in the Astell\u0026amp;Kern KANN MAX\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eWireless and convenience\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e with LDAC and aptX HD, for a faster, longer-range and more stable wireless connection than Bluetooth 4.2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBT Sink:\u003c\/strong\u003e play music from a phone through the KANN MAX over Bluetooth, as you would to a Bluetooth speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplayGain\u003c\/strong\u003e evens out the volume across tracks (up to 24-bit\/192kHz files).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAK File Drop\u003c\/strong\u003e transfers files wirelessly from a PC, phone or FTP program on the same network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED volume wheel\u003c\/strong\u003e shows the volume and the bit depth of the track (16-bit, 24-bit, 32-bit, DSD or MQA), and can be switched off.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign\u003c\/h3\u003e\n\u003cp\u003eAstell\u0026amp;Kern designed the KANN MAX like a high-performance sports car, slimmer than the heavier, off-road look of earlier KANNs. A hexagonal top line narrows sharply from bottom to top, hairline brushing on the back suggests speed, and the protector around the volume wheel is shaped like an engine. The body is aluminium, in Anthracite Gray, the Astell\u0026amp;Kern signature colour, or a limited-edition Brown Mud.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-max-digital-audio-player-photo-design.jpg?v=1791402891\" alt=\"Hairline-finished aluminium body of the Astell\u0026amp;Kern KANN MAX\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKKANNMAX_1000x428_2ae3b44d-bcd9-4a8f-a61f-3c1208ae3eed.jpg?v=1767174391\" alt=\"Astell\u0026amp;Kern KANN MAX in Anthracite Gray and Brown Mud\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC\u003c\/th\u003e\n\u003ctd\u003e4 × ESS ES9038Q2M · quad-core CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormats\u003c\/th\u003e\n\u003ctd\u003eWAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA · PCM 8kHz–768kHz (up to 32-bit) · native DSD64–DSD512\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e3.5mm unbalanced and optical · 2.5mm balanced (4-pole) · 4.4mm balanced (5-pole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput level\u003c\/th\u003e\n\u003ctd\u003eUp to 8Vrms unbalanced · 15Vrms balanced (super gain, no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e±0.023dB unbalanced · ±0.026dB balanced (20Hz–20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eS\/N · crosstalk\u003c\/th\u003e\n\u003ctd\u003e114dB · −124dB unbalanced; 115dB · −135dB balanced (1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTHD+N · IMD\u003c\/th\u003e\n\u003ctd\u003e0.0003% unbalanced · 0.0004% balanced · IMD SMPTE 0.0007%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput impedance\u003c\/th\u003e\n\u003ctd\u003e1Ω (3.5mm) · 1.6Ω (2.5mm and 4.4mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClock jitter\u003c\/th\u003e\n\u003ctd\u003e25ps typical · reference 70ps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless\u003c\/th\u003e\n\u003ctd\u003eWi-Fi 802.11 b\/g\/n (2.4GHz) · Bluetooth 5.0 (A2DP, AVRCP, aptX HD, LDAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScreen and storage\u003c\/th\u003e\n\u003ctd\u003e4.1-inch 720 × 1280 touch screen · 64GB · microSD up to 1TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e5,600mAh · about 13 hours · charge about 3.5 hours (9V fast) or 5.5 hours (5V 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e68.3 × 117 × 23.6mm (W × H × D) · about 305g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUSB-C charges the player and connects it to a Windows or Mac computer. Firmware updates over the air.\u003c\/li\u003e\n\u003cli\u003eColours: Anthracite Gray or Brown Mud (limited edition).\u003c\/li\u003e\n\u003cli\u003eThis is an order-on-demand item and may take longer than our usual 2–4 working days.\u003c\/li\u003e\n\u003cli\u003eIn the box: KANN MAX, USB-C to USB-A cable (1m), three screen protectors and a quick start guide.\u003c\/li\u003e\n\u003cli\u003eThe newer, more powerful model is the \u003ca href=\"\/products\/astell-kern-kann-ultra-digital-audio-player\"\u003eKANN Ultra\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-max-digital-audio-player-photo-lifestyle.jpg?v=1791402896\" alt=\"Astell\u0026amp;Kern KANN MAX\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Astell \u0026 Kern","offers":[{"title":"BROWN","offer_id":57115998159235,"sku":"AKKANNMAX-BROWN","price":1199.0,"currency_code":"GBP","in_stock":true},{"title":"GREY","offer_id":57115998192003,"sku":"AKKANNMAX-GRAY","price":1199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_1578ad89-9e8d-4180-9210-cd5b54b4c8ab.jpg?v=1767174408"},{"product_id":"astell-kern-a-ultima-sp3000-digital-audio-player","title":"Astell\u0026Kern A\u0026ultima SP3000 Digital Audio Player","description":"\u003cp\u003eThe Astell\u0026amp;Kern A\u0026amp;ultima SP3000 is Astell\u0026amp;Kern’s flagship music player, the essence of more than ten years of its digital music engineering. It was the first player with a body of 904L stainless steel, the steel of luxury watches, and the first with digital and analogue processing completely separated: its HEXA-Audio circuit pairs two AKM AK4191EQ modulators with four AK4499EX DACs, the first use of AKM’s flagship DAC, and gives the balanced and unbalanced outputs their own independent audio circuits. Astell\u0026amp;Kern quotes a signal-to-noise ratio of 130dB, which it says is the best of any digital audio player.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKSP3000_1000x646_4748bf38-0972-4f3f-9642-015b0e1b1c65.jpg?v=1767175007\" alt=\"Astell\u0026amp;Kern A\u0026amp;ultima SP3000 in silver and black\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003e904L stainless steel\u003c\/h3\u003e\n\u003cp\u003eThe A\u0026amp;ultima series aims to offer value no one can imitate, through innovative, uncompromising design and craftsmanship. 904L stainless steel had never been used for a portable player: it is harder and far more time-consuming to machine than ordinary stainless steel, but its durability and corrosion resistance keep it looking beautiful, which is why luxury watchmakers use it. In the SP3000 it turns a digital device into a luxury object.\u003c\/p\u003e\n\u003ch3\u003eDigital and analogue, completely separate\u003c\/h3\u003e\n\u003cp\u003eAstell\u0026amp;Kern worked with AKM from the start of development on the DAC and circuit. In most players, the DAC processes digital and analogue signals together. In the SP3000, two AK4191EQ chips, separate digital delta-sigma modulators, take the digital signal and reduce its noise, and four AK4499EX DACs then handle only the analogue side. This physical separation, a first in a portable player, maximises the signal-to-noise ratio.\u003c\/p\u003e\n\u003cp\u003eA shield can keeps noise and electromagnetic interference away from the audio block. The SP3000’s is plated with highly conductive, high-purity silver, and the digital and analogue signals are kept physically apart.\u003c\/p\u003e\n\u003ch3\u003eIndependent dual audio circuit\u003c\/h3\u003e\n\u003cp\u003eAlmost every player, including earlier Astell\u0026amp;Kerns, feeds both the balanced and unbalanced outputs from the same DACs, so an audio switch is needed between DAC and amplifier. A switch can only accept a limited signal range, so the signal is first reduced and then restored before the amplifier, which limits performance. The SP3000’s HEXA-Audio structure, with two AK4191EQs and four AK4499EXs, instead gives the unbalanced and balanced outputs fully independent circuits, with no switch, for a clean, pure and delicate sound and 130dB SNR (balanced).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-ultima-sp3000-digital-audio-player-photo-typical-dual-dac.jpg?v=1791402999\" alt=\"Typical dual DAC circuit with an audio switch\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-ultima-sp3000-digital-audio-player-photo-hexa-circuit.jpg?v=1791403003\" alt=\"Astell\u0026amp;Kern SP3000 HEXA-Audio circuit with independent balanced and unbalanced paths\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTERATON ALPHA\u003c\/h3\u003e\n\u003cp\u003eAstell\u0026amp;Kern’s TERATON ALPHA sound solution, refined for the SP3000, combines effective power-noise removal, efficient power management, unwavering amplification and a fully converted audio output interface, for playback close to the original sound. With the HEXA-Audio structure and the independent dual circuit, it completes the SP3000’s sound.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-ultima-sp3000-digital-audio-player-photo-teraton-alpha.jpg?v=1791403006\" alt=\"TERATON ALPHA elements in the Astell\u0026amp;Kern SP3000\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eSnapdragon octa-core and a new interface\u003c\/h3\u003e\n\u003cp\u003eA Qualcomm Snapdragon 6125 octa-core processor and 8GB of DDR4 memory, twice the usual amount, give fast system response and smooth, stable operation. The CPU, memory and wireless parts are combined in one module, with the digital circuitry grouped in the same area, which leaves more room for audio-only circuits and reduces heat and digital noise.\u003c\/p\u003e\n\u003cp\u003eThe new interface is built around listening: browse music categories with simple gestures, search, and see album art like a digital display of your CD covers, with a focus on rediscovering forgotten songs. The Crimson theme echoes the look of the SP3000 itself. Three ideas, Edge, Simple and Dark Mode, shape the graphics, and the black and red colours reduce eye fatigue, save battery and reduce heat. The 5.46-inch Full HD screen makes it all comfortable to use.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-ultima-sp3000-digital-audio-player-photo-ui.jpg?v=1791403009\" alt=\"Astell\u0026amp;Kern SP3000 user interface\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eShape the sound\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDAC filters.\u003c\/strong\u003e Choose from six filters provided by AKM to create your own sound style:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSuper Slow Roll-off\u003c\/th\u003e\n\u003ctd\u003eNatural tone: no echo, natural sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShort Delay Slow Roll-off\u003c\/th\u003e\n\u003ctd\u003eAcoustic tone: minimal echo, original sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSlow Roll-off\u003c\/th\u003e\n\u003ctd\u003eTraditional tone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLow dispersion\u003c\/th\u003e\n\u003ctd\u003eHarmonic sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShort Delay Sharp Roll-off\u003c\/th\u003e\n\u003ctd\u003eAcoustic sound: post-echo enhances bass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSharp Roll-off\u003c\/th\u003e\n\u003ctd\u003eTraditional sound: pre- and post-echoes for a powerful sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Audio Remaster (DAR)\u003c\/strong\u003e upsamples what you are playing beyond the limits of its format, for more refined, delicate and analogue-like playback with richer nuance. In PCM mode, 44.1kHz-family files play at 352.8kHz and 48kHz-family files at 384kHz (DSD is not converted). In DSD mode, PCM below 96kHz plays as DSD128, PCM above 96kHz as DSD256, and DSD below DSD256 as DSD256. DAR can be switched on or off.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrossfeed\u003c\/strong\u003e eases the fatigue of long listening on headphones, where left and right are completely separate. It sends part of each channel to the other with a small time delay to centre the image, like speakers, with adjustable Shelf Cutoff, Shelf Gain and Mixer Level.\u003c\/p\u003e\n\u003ch3\u003eEveryday features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative DSD512 and 32-bit\/768kHz\u003c\/strong\u003e bit-to-bit playback, plus MQA files and streams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED volume wheel\u003c\/strong\u003e shows the volume and the bit depth of the track, and can be switched off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAK File Drop\u003c\/strong\u003e transfers music wirelessly from a PC, phone or FTP program on the same network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplayGain\u003c\/strong\u003e evens out volume across tracks (up to 24-bit\/192kHz).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBT Sink\u003c\/strong\u003e plays music from a phone through the SP3000 over Bluetooth, and Bluetooth 5.0 sends to headphones with LDAC and aptX HD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQC 3.0 fast charging\u003c\/strong\u003e: a full charge in about 3.5 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-ultima-sp3000-digital-audio-player-photo-wheel.jpg?v=1791403013\" alt=\"Volume wheel of the Astell\u0026amp;Kern SP3000\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDesign and goatskin case\u003c\/h3\u003e\n\u003cp\u003eWhere the SP1000 and SP2000 showed light spreading and scattering, the SP3000 is “wrapped in light”: light gathers and wraps around the wheel, symbolising everything Astell\u0026amp;Kern has learned. The polished steel body, shimmering LED and sharply machined ceramic panel complete the look.\u003c\/p\u003e\n\u003cp\u003eA French goatskin leather case is included, made by ALRAN, a tannery in Tarn in the south of France founded in 1903 and one of the world’s leading goatskin makers. It uses ALRAN’s hand-boarding technique, rubbing the leather in different directions with wooden boards, so you can feel the texture of the surface.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-ultima-sp3000-digital-audio-player-photo-silver.jpg?v=1791403017\" alt=\"Astell\u0026amp;Kern SP3000 in silver\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKSP3000_750x530_1c833aec-b329-49c4-99a8-623238ecbf83.jpg?v=1767175015\" alt=\"Volume wheel and outputs of the Astell\u0026amp;Kern SP3000\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC\u003c\/th\u003e\n\u003ctd\u003e2 × AKM AK4191 (dual modulator) + 4 × AK4499EX (dual + dual DAC) · Snapdragon 6125 octa-core, 8GB DDR4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormats\u003c\/th\u003e\n\u003ctd\u003eWAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA · PCM 8kHz–768kHz (up to 32-bit) · native DSD64–DSD512\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e3.5mm unbalanced and optical · 2.5mm balanced (4-pole) · 4.4mm balanced (5-pole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput level\u003c\/th\u003e\n\u003ctd\u003e3.3Vrms unbalanced · 6.3Vrms balanced (no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e±0.017dB unbalanced · ±0.021dB balanced (20Hz–20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eS\/N · crosstalk\u003c\/th\u003e\n\u003ctd\u003e126dB · −136dB unbalanced; 130dB · −145dB balanced (1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTHD+N · IMD\u003c\/th\u003e\n\u003ctd\u003e0.0006% unbalanced · 0.0004% balanced · IMD SMPTE 0.0007%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput impedance\u003c\/th\u003e\n\u003ctd\u003e0.7Ω (3.5mm) · 1.7Ω (2.5mm) · 1.6Ω (4.4mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClock jitter\u003c\/th\u003e\n\u003ctd\u003e25ps typical · reference clock 200 femtoseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless\u003c\/th\u003e\n\u003ctd\u003eWi-Fi 802.11 a\/b\/g\/n\/ac (2.4\/5GHz) · Bluetooth 5.0 (A2DP, AVRCP, aptX HD, LDAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScreen and storage\u003c\/th\u003e\n\u003ctd\u003e5.46-inch Full HD 1080 × 1920 touch · 256GB · microSD up to 1TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e5,050mAh · about 10 hours · charge about 3.5 hours (QC 3.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e82.4 × 139.4 × 18.3mm (W × H × D) · about 493g · 904L stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUSB-C charges the player and connects it to a Windows 10\/11 or Mac computer. Firmware updates over the air.\u003c\/li\u003e\n\u003cli\u003eColours: black or silver.\u003c\/li\u003e\n\u003cli\u003eThis is an order-on-demand item and may take longer than our usual 2–4 working days.\u003c\/li\u003e\n\u003cli\u003eIn the box: SP3000, olive-green goatskin leather case, USB-C cable, six protective films (front, back and top, two of each), two microSD slot covers, suede cloth and quick start guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKSP3000_750x529_259e6b40-5a92-488c-b347-7aa18d9d6e2c.jpg?v=1767175018\" alt=\"Astell\u0026amp;Kern SP3000 with in-ear monitors\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Astell \u0026 Kern","offers":[{"title":"BLACK","offer_id":57116008776067,"sku":"AKSP3000-BLACK","price":3799.0,"currency_code":"GBP","in_stock":true},{"title":"SILVER","offer_id":57116008808835,"sku":"AKSP3000-SILVER","price":3799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_e78cece4-a611-45b4-a4db-18624782172f.jpg?v=1767175036"},{"product_id":"astell-kern-a-norma-sr35-digital-audio-player","title":"Astell\u0026Kern A\u0026norma SR35 Digital Audio Player","description":"\u003cp\u003eThe Astell\u0026amp;Kern A\u0026amp;norma SR35 brings Astell\u0026amp;Kern’s premium sound to a pocket-sized player. It follows the popular SR25 MKII and adds firsts for the A\u0026amp;norma series: four Cirrus Logic CS43198 DACs (switchable to two for longer battery life), the new-generation amplifier from Astell\u0026amp;Kern’s flagship A\u0026amp;ultima players, two gain levels with up to 6Vrms balanced, and Roon Ready. It weighs 184g, plays for about 20 hours, and adds dual-band Wi-Fi, MQA full decoding and Astell\u0026amp;Kern’s Crimson interface.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKSR35_1000x536_7c61a904-9e05-4eb5-8cb2-d735c978a545.jpg?v=1767182046\" alt=\"Astell\u0026amp;Kern A\u0026amp;norma SR35 with headphones connected\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eQuad DAC, switchable to dual\u003c\/h3\u003e\n\u003cp\u003eFor the first time in the A\u0026amp;norma series, the SR35 uses Cirrus Logic’s CS43198, a DAC praised for its spatial sense and resolution, in a quad-DAC configuration. A new audio circuit combines it with Astell\u0026amp;Kern’s own technologies and its patented TERATON ALPHA for more dynamics, space, resolution and separation. Switching to dual-DAC mode improves power efficiency and extends the playing time, a core A\u0026amp;norma strength. It plays native DSD256 and PCM up to 32-bit\/384kHz bit-to-bit.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-norma-sr35-digital-audio-player-photo-quad-dual-dac.jpg?v=1791403144\" alt=\"Quad and dual DAC mode switching in the Astell\u0026amp;Kern SR35\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eNew-generation amplifier\u003c\/h3\u003e\n\u003cp\u003eThe SR35 has the same amplifier design as the latest A\u0026amp;ultima and A\u0026amp;futura players, redesigned from the op-amp choice to the component placement and circuit, which reduces noise at high output. The current capability at the output is increased, so it drives headphones and earphones of very different impedances reliably. Astell\u0026amp;Kern quotes a 130dB signal-to-noise ratio (balanced), which it calls industry-leading.\u003c\/p\u003e\n\u003cp\u003eTwo gain levels, Normal and High, match the output to everything from sensitive IEMs to hard-to-drive headphones, with high current for powerful sound and excellent driver control.\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003eSR25 MKII · SR35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput level (normal)\u003c\/th\u003e\n\u003ctd\u003e2.0 \/ 4.0Vrms · 2.1 \/ 4.0Vrms (unbalanced \/ balanced, no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput level (high)\u003c\/th\u003e\n\u003ctd\u003e— · 3.1 \/ 6.0Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eS\/N (1kHz)\u003c\/th\u003e\n\u003ctd\u003e122 \/ 124dB · 127 \/ 130dB (unbalanced \/ balanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eTERATON ALPHA\u003c\/h3\u003e\n\u003cp\u003eAstell\u0026amp;Kern’s TERATON ALPHA sound solution makes high output and a quad DAC possible with long playing time and minimal noise, through effective power-noise removal, efficient power management, unwavering amplification and a fully converted audio output interface.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-norma-sr35-digital-audio-player-photo-teraton-alpha.jpg?v=1791403148\" alt=\"TERATON ALPHA elements in the Astell\u0026amp;Kern SR35\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eAll-day music\u003c\/h3\u003e\n\u003cp\u003eAt 184g the SR35 slips into a pocket, and up to 20 hours of continuous playback covers long-haul flights, full working days and holidays without a recharge.\u003c\/p\u003e\n\u003ch3\u003eCrimson interface and streaming\u003c\/h3\u003e\n\u003cp\u003eThe redesigned Crimson interface makes the SR35 a true music player: browse categories quickly, rediscover songs in your library and search album art. Its keywords are edge, simplicity and dark mode, and the black-and-red colours reduce visual fatigue. App services, artist view and album sorting were also improved. The Services menu downloads streaming apps such as TIDAL, Spotify, Amazon Music, Qobuz and Deezer.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/SR35_UI-UX.jpg?v=1767182050\" alt=\"Astell\u0026amp;Kern SR35 interface: now playing, Services and settings\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eSound design with DAC filters\u003c\/h3\u003e\n\u003cp\u003ePick from four DAC filters to shape your own sound: Low Latency Fast (post-echo enhances bass), Low Latency Slow (minimal echo, original sound), Phase Compensated Fast (pre- and post-echoes for a powerful sound) and Phase Compensated Slow.\u003c\/p\u003e\n\u003ch3\u003eRoon Ready, MQA and more\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoon Ready\u003c\/strong\u003e, a first for A\u0026amp;norma: use the SR35 as a Roon network player for uncompromised hi-fi through your Roon system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMQA 8X full decoder\u003c\/strong\u003e plays and streams MQA natively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-band Wi-Fi\u003c\/strong\u003e (2.4\/5GHz) for streaming services and Roon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e with LDAC and aptX HD, in both directions: send to headphones, or use \u003cstrong\u003eBT Sink\u003c\/strong\u003e to play music from your phone through the SR35.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplayGain\u003c\/strong\u003e evens out volume across tracks (up to 24-bit\/192kHz).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAK File Drop\u003c\/strong\u003e transfers music wirelessly from a PC, phone or FTP program.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign\u003c\/h3\u003e\n\u003cp\u003eThe design pictures a warrior’s sword and shield: a single bold line on the side and a surface that widens towards the bottom form the sword, and the finely refined, concave volume control the shield. An “A” pattern on the rear glass forms a rectangular motif marking the series’ first quad DAC, and the angular display sits well in the hand. The body is aluminium in Charcoal Gray.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-norma-sr35-digital-audio-player-photo-back-glass.jpg?v=1791403152\" alt=\"A pattern on the rear glass of the Astell\u0026amp;Kern A\u0026amp;norma SR35\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKSR35_1000x250_257adcf8-0d0d-4520-8936-2e2c3fa1c547.jpg?v=1767182053\" alt=\"Astell\u0026amp;Kern SR35 from several angles\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC\u003c\/th\u003e\n\u003ctd\u003e4 × Cirrus Logic CS43198 (quad or dual mode) · quad-core CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormats\u003c\/th\u003e\n\u003ctd\u003eWAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF · PCM 8kHz–384kHz (up to 32-bit) · native DSD64–DSD256 · MQA 8X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e3.5mm unbalanced · 2.5mm balanced (4-pole) · 4.4mm balanced (5-pole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput level\u003c\/th\u003e\n\u003ctd\u003eNormal 2.1 \/ 4Vrms · High 3.1 \/ 6Vrms (unbalanced \/ balanced, no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e±0.012dB unbalanced · ±0.011dB balanced (20Hz–20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eS\/N · crosstalk\u003c\/th\u003e\n\u003ctd\u003e127dB · −133dB unbalanced; 130dB · −145dB balanced (1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTHD+N · IMD\u003c\/th\u003e\n\u003ctd\u003e0.0005% unbalanced · 0.0006% balanced · IMD SMPTE 0.0002%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput impedance\u003c\/th\u003e\n\u003ctd\u003e1.1Ω (3.5mm) · 2.7Ω (2.5mm and 4.4mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClock jitter\u003c\/th\u003e\n\u003ctd\u003e25ps typical · reference 70ps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless\u003c\/th\u003e\n\u003ctd\u003eWi-Fi 802.11 a\/b\/g\/n\/ac (2.4\/5GHz) · Bluetooth 5.0 (A2DP, AVRCP, aptX HD, LDAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScreen and storage\u003c\/th\u003e\n\u003ctd\u003e3.6-inch HD 720 × 1280 touch · 64GB · microSD up to 1TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e3,150mAh · about 20 hours (dual-DAC mode) · charge about 2.5 hours (5V 2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e64 × 108.3 × 16.1mm (W × H × D) · about 184g · aluminium, Charcoal Gray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUSB-C charges the player and connects it to a Windows 10\/11 or Mac computer. Firmware updates over the air.\u003c\/li\u003e\n\u003cli\u003eIn the box: SR35, USB-C cable, two screen and two back protective films, microSD slot cover and quick start guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-a-norma-sr35-digital-audio-player-photo-with-iems.jpg?v=1791403159\" alt=\"Astell\u0026amp;Kern A\u0026amp;norma SR35 with in-ear monitors\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Astell \u0026 Kern","offers":[{"title":"Default Title","offer_id":57116190474627,"sku":"AKSR35","price":799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_a5117deb-3b46-4614-ad1e-0594bf31e854.jpg?v=1767182070"},{"product_id":"astell-kern-se300-music-player","title":"Astell \u0026 Kern SE300 Music Player","description":"\u003cp\u003eThe Astell\u0026amp;Kern A\u0026amp;futura SE300 is the fourth A\u0026amp;futura player, the line that carries Astell\u0026amp;Kern’s most innovative ideas, and the first Astell\u0026amp;Kern player with an R-2R DAC and a Class A amplifier. Its fully discrete 24-bit R-2R DAC is built from 96 ultra-precision resistors, the amplifier switches between Class A and Class AB, an FPGA developed by Astell\u0026amp;Kern offers OS and NOS modes, and TERATON ALPHA ties it all together, for a natural, analogue sound from digital sources.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/SE300_1000x554_207d2a2d-d7f0-49cd-a394-7e660e224d77.jpg?v=1767183443\" alt=\"Astell\u0026amp;Kern A\u0026amp;futura SE300 digital audio player\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFully discrete 24-bit R-2R DAC\u003c\/h3\u003e\n\u003cp\u003eTo reproduce analogue sound better, Astell\u0026amp;Kern designed the DAC and amplifier together from the start. Instead of the delta-sigma DAC chip found in most players, the SE300 uses an R-2R, or ladder, DAC, with resistors arranged like the rungs of a ladder. R-2R sounds natural yet dynamic, but it is hard to build, needing complex, precise resistor networks and careful current control. After several years of development and much trial and error, Astell\u0026amp;Kern hand-picked each of the 96 ultra-precision resistors and finalised its design.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue 24-bit decoding:\u003c\/strong\u003e 48 pairs (23 × R and 25 × 2R) of the 96 resistors create the analogue signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.01% tolerance:\u003c\/strong\u003e an R-2R DAC needs current values summed from resistors with the smallest possible error, so every resistor was inspected to 0.01%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTCR10:\u003c\/strong\u003e to keep that precision as temperature changes, the resistors have a low temperature coefficient of 10ppm\/°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-block-diagram.jpg?v=1791403247\" alt=\"Astell\u0026amp;Kern SE300 block diagram: custom FPGA, discrete R-2R DACs and Class A\/AB amplifier\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eClass A or Class AB\u003c\/h3\u003e\n\u003cp\u003eThe dual amplifier lets you choose by taste or genre. \u003cstrong\u003eClass A\u003c\/strong\u003e gives the most linear output, amplifying without distortion or loss for a soft, warm and natural sound; fed by the R-2R DAC’s refined analogue signal, it comes closest to the original analogue audio. \u003cstrong\u003eClass AB\u003c\/strong\u003e is powerful and efficient, with dynamic, crisp sound and low harmonic distortion. Astell\u0026amp;Kern’s own designs reduce power consumption while raising output and removing noise.\u003c\/p\u003e\n\u003cp\u003eTwo gain levels, Normal and High, match sensitive IEMs and hard-to-drive headphones, with high current for powerful sound and driver control, and up to 6Vrms balanced for high-impedance headphones.\u003c\/p\u003e\n\u003ch3\u003eTERATON ALPHA\u003c\/h3\u003e\n\u003cp\u003eA Class A amplifier was thought impossible to miniaturise, and Astell\u0026amp;Kern says it could not have combined it with the precision R-2R DAC without TERATON ALPHA, its sound solution of effective power-noise removal, efficient power management, unwavering amplification and a fully converted output interface, here with current and temperature control and an optimised FPGA design.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-teraton-alpha.jpg?v=1791403251\" alt=\"TERATON ALPHA elements in the Astell\u0026amp;Kern SE300\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFPGA with OS and NOS modes\u003c\/h3\u003e\n\u003cp\u003eInstead of an off-the-shelf chipset, the SE300 uses an FPGA (field programmable gate array) developed by Astell\u0026amp;Kern, whose algorithm passes the digital signal to the R-2R DAC. It offers two modes, designed for the SE300’s hardware and software. \u003cstrong\u003eNOS (non-oversampling)\u003c\/strong\u003e plays the pure, unprocessed sound decoded by the R-2R DAC itself. \u003cstrong\u003eOS (oversampling)\u003c\/strong\u003e adds partial digital processing that extends the bandwidth, for impressive detail, a wide sense of space and a crisp, clear sound.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-os-nos.jpg?v=1791403255\" alt=\"OS and NOS modes through the customised FPGA of the Astell\u0026amp;Kern SE300\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eInterface and features\u003c\/h3\u003e\n\u003cp\u003eThe redesigned Crimson interface makes the SE300 a true music player: browse categories quickly, rediscover songs and search album art. Its keywords are edge, simplicity and dark mode, in black with red highlights that reduce visual fatigue, and app services, artist view and album sorting were improved. Streaming apps install from the Services menu. The 5.46-inch Full HD screen is large and vivid.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-ui.jpg?v=1791403259\" alt=\"Astell\u0026amp;Kern SE300 interface: now playing, Services and settings\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED wheel:\u003c\/strong\u003e a light behind the volume wheel, like rising waves, shows the bit depth of the track or the current amplifier mode, and can be switched off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSD256 and 32-bit\/384kHz\u003c\/strong\u003e playback, plus MQA files and streams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplayGain\u003c\/strong\u003e evens out volume across tracks (up to 24-bit\/192kHz).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAK File Drop\u003c\/strong\u003e transfers music wirelessly from a PC, phone or FTP program.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBT Sink\u003c\/strong\u003e plays music from your phone through the SE300; Bluetooth 5.0 sends LDAC and aptX HD.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-wheel.jpg?v=1791403263\" alt=\"LED-lit volume wheel of the Astell\u0026amp;Kern SE300\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDesign: Stream\u003c\/h3\u003e\n\u003cp\u003eThe design concept is “Stream”: small ripples becoming crashing waves, for a player built around a Class A amplifier. The aluminium body has streamlined surfaces that suggest music flowing, contrasted with stainless steel and glass. The bottom curves outwards for a more ergonomic grip, and the polished stainless steel right side and the triangular-patterned volume wheel create a striking contrast; a straight pattern behind the wheel lets you see the volume change, and the hidden wheel light reflects off the side and the knurling. The rear glass has a new etched pattern of Astell\u0026amp;Kern “A” logos in different sizes and inclinations, adding depth and flow.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-design.jpg?v=1791403269\" alt=\"Etched rear glass and stainless steel side of the Astell\u0026amp;Kern SE300\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC\u003c\/th\u003e\n\u003ctd\u003eFully discrete 24-bit R-2R (96 resistors, 0.01%, TCR10) · customised FPGA (OS\/NOS) · quad-core CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier\u003c\/th\u003e\n\u003ctd\u003eClass A \/ Class AB switchable · normal and high gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormats\u003c\/th\u003e\n\u003ctd\u003eWAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF · PCM 8kHz–384kHz (up to 32-bit) · DSD64–DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e3.5mm unbalanced and optical · 2.5mm balanced (4-pole) · 4.4mm balanced (5-pole) · all 1.3Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput level\u003c\/th\u003e\n\u003ctd\u003eNormal 2 \/ 4Vrms · High 3 \/ 6Vrms (unbalanced \/ balanced, no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e±0.038dB (20Hz–20kHz) · ±0.45dB (20Hz–70kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eS\/N · crosstalk\u003c\/th\u003e\n\u003ctd\u003e114 \/ 115dB (normal gain), 115 \/ 115dB (high gain) · −135 \/ −144dB (unbalanced \/ balanced, 1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTHD+N · IMD\u003c\/th\u003e\n\u003ctd\u003e0.006% · IMD SMPTE 0.005%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClock jitter\u003c\/th\u003e\n\u003ctd\u003e25ps typical · reference clock 500 femtoseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless\u003c\/th\u003e\n\u003ctd\u003eWi-Fi 802.11 a\/b\/g\/n\/ac (2.4\/5GHz) · Bluetooth 5.0 (A2DP, AVRCP, aptX HD, LDAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScreen and storage\u003c\/th\u003e\n\u003ctd\u003e5.46-inch 1080 × 1920 touch · 256GB · microSD up to 1TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e5,050mAh · about 12 hours · charge about 3.5 hours (9V 1.67A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e76.45 × 139.45 × 17.6mm (W × H × D) · about 317g · aluminium and stainless steel, Platinum Silver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUSB-C charges the player and connects it to a Windows 10\/11 or Mac computer. Firmware updates over the air.\u003c\/li\u003e\n\u003cli\u003eIn the box: SE300, USB-C cable, protective films, microSD slot cover and quick start guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/SE300_1000x616_b4e3223d-31ad-469b-be42-ba8f36b21e5d.jpg?v=1767183450\" alt=\"Astell\u0026amp;Kern SE300 with in-ear monitors\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-se300-music-player-photo-lifestyle.jpg?v=1791403273\" alt=\"Astell\u0026amp;Kern A\u0026amp;futura SE300\" loading=\"lazy\"\u003e\u003c\/p\u003e","brand":"Astell \u0026 Kern","offers":[{"title":"Default Title","offer_id":57116233236867,"sku":"AKSE300","price":1899.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_3763237b-2d99-4cf7-9e9a-058283c53dbc.jpg?v=1767183473"},{"product_id":"astell-kern-kann-ultra-digital-audio-player","title":"Astell\u0026Kern KANN Ultra Digital Audio Player","description":"\u003cp\u003eThe Astell\u0026amp;Kern KANN ULTRA is the fifth KANN player and the most powerful Astell\u0026amp;Kern player yet. Four gain levels reach 16Vrms balanced, desktop hi-fi level output that drives many of today’s headphones with no external amplifier. Two ESS ES9039MPRO DACs feed Astell\u0026amp;Kern’s Triple Output design, with separate headphone, pre and line outputs, and it is the first KANN with an octa-core processor, Digital Audio Remaster and the Crimson interface, with an 8,400mAh battery for about 11 hours.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKKANNULTRA_1000x837_0374a7c7-4d90-4ec5-9a8e-7c01bddb903e.jpg?v=1767202148\" alt=\"Astell\u0026amp;Kern KANN ULTRA driving full-size headphones\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTriple Output, triple sound\u003c\/h3\u003e\n\u003cp\u003eInstead of simply separating the sockets, TERATON ALPHA gives the headphone output and the pre\/line output their own amplifier and sound design, so each suits its job: demanding headphones, detailed IEMs or external equipment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone out\u003c\/strong\u003e (3.5mm, with S\/PDIF optical, and 4.4mm balanced): four gain levels up to 16Vrms, to run demanding high-impedance headphones from the player alone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre out\u003c\/strong\u003e: a dedicated pre-amplifier rather than the high-power headphone amp, with the volume wheel controlling the level, for an external amplifier or audio device (up to 2Vrms \/ 4Vrms, no gain settings).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine out\u003c\/strong\u003e: the DAC’s output directly, with no amplifier, for the lowest noise into external equipment, at a fixed level (four settings) with no volume control. Never switch Line Out on with headphones plugged into the pre\/line socket: it could permanently damage your hearing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-triple-output.jpg?v=1791403384\" alt=\"Triple Output: headphone, pre and line outputs of the Astell\u0026amp;Kern KANN ULTRA\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFour gains, up to 16Vrms\u003c\/h3\u003e\n\u003cp\u003eTo match every IEM and headphone, the output port handles more current at each gain level, and separate balanced and unbalanced amplifiers optimise the current and lower the noise. Compared with the high-output KANN CUBE, the KANN ULTRA has the same output, a larger 5.5-inch screen and a better grip, and is much lighter at 390g (KANN CUBE: 493g).\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eGain\u003c\/th\u003e\n\u003ctd\u003eUnbalanced 3.5mm · balanced 4.4mm (no load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLow\u003c\/th\u003e\n\u003ctd\u003e2Vrms · 4Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMid\u003c\/th\u003e\n\u003ctd\u003e4Vrms · 8Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHigh\u003c\/th\u003e\n\u003ctd\u003e6Vrms · 12Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuper\u003c\/th\u003e\n\u003ctd\u003e8Vrms · 16Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-outputs.jpg?v=1791403389\" alt=\"Headphone and pre\/line outputs of the Astell\u0026amp;Kern KANN ULTRA\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTERATON ALPHA and ES9039MPRO\u003c\/h3\u003e\n\u003cp\u003eUltra-high output, Triple Output and a complex, low-noise amplifier in a portable player depend on TERATON ALPHA, now refined with what Astell\u0026amp;Kern learned about noise at very high power from the KANN MAX and CA1000: effective power-noise removal, efficient power management, unwavering amplification and a fully converted output interface.\u003c\/p\u003e\n\u003cp\u003eThe two ES9039MPRO DACs are ESS’s newest flagship, an update of the ES9039PRO with a built-in stereo hardware MQA renderer and more advanced modulation that cuts power consumption, noise and distortion, for a richer, more expansive sound. Astell\u0026amp;Kern redesigned the amplifier block so every Triple Output port shows the DACs at their best.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-dual-dac.jpg?v=1791403393\" alt=\"Dual ESS ES9039MPRO DACs in the Astell\u0026amp;Kern KANN ULTRA\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-block-diagram.jpg?v=1791403398\" alt=\"Audio block diagram of the Astell\u0026amp;Kern KANN ULTRA\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eOcta-core, shielded audio\u003c\/h3\u003e\n\u003cp\u003eThe first KANN with a next-generation octa-core processor runs faster and makes the fourth-generation interface flow more smoothly. The audio circuit is physically separated from the processor area, with its CPU, memory and wireless parts, and has its own shield can to keep their heat and noise away.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-octa-core.jpg?v=1791403404\" alt=\"Octa-core processor module of the Astell\u0026amp;Kern KANN ULTRA\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eCrimson interface and sound tools\u003c\/h3\u003e\n\u003cp\u003eThe Crimson interface, new to the KANN series, makes it a player for music: browse categories quickly, rediscover songs and search album art, in black with red highlights that reduce visual fatigue, with improved streaming app services, artist view and album sorting. The Roon ARC app is supported through Open Service, for remote access to your whole personal library with rich metadata.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-ui.jpg?v=1791403409\" alt=\"Astell\u0026amp;Kern KANN ULTRA Crimson interface\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeven DAC filters\u003c\/strong\u003e let you shape the sound:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Phase (default)\u003c\/th\u003e\n\u003ctd\u003eLow latency, minimal pre-ringing, low passband ripple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLinear Phase Apodizing\u003c\/th\u003e\n\u003ctd\u003eFull image rejection by FS\/2 to avoid aliasing, smooth roll-off starting before 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLinear Phase Fast Roll-Off\u003c\/th\u003e\n\u003ctd\u003eThe most common filter: clean suppression, high rejection, crisp highs, for high-transient music\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLinear Phase Slow Roll-Off\u003c\/th\u003e\n\u003ctd\u003eLow group delay, less ringing than fast roll-off, punchier bass with clean highs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Phase Fast Roll-Off\u003c\/th\u003e\n\u003ctd\u003eMinimal pre-ringing for imaging and soundstage, stronger bass than linear phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Phase Slow Roll-Off\u003c\/th\u003e\n\u003ctd\u003eAsymmetric, minimal pre-ringing, strong punchy bass with good attack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Phase Slow Roll-Off Low Dispersion\u003c\/th\u003e\n\u003ctd\u003eBalances the low latency of minimum phase with the low dispersion of linear phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Audio Remaster (DAR)\u003c\/strong\u003e upsamples beyond the source format for more refined, analogue-like playback: in PCM mode, 44.1kHz-family files play at 352.8kHz and 48kHz-family at 384kHz; in DSD mode, PCM below 96kHz plays as DSD128, above 96kHz as DSD256, and DSD below DSD256 as DSD256. \u003cstrong\u003eCrossfeed\u003c\/strong\u003e sends part of each channel to the other with a small delay to centre the image like speakers, with adjustable Shelf Cutoff, Shelf Gain and Mixer Level, for less fatigue on long sessions.\u003c\/p\u003e\n\u003ch3\u003eEveryday features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative DSD512 and 32-bit\/768kHz\u003c\/strong\u003e bit-to-bit playback, plus MQA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED volume wheel\u003c\/strong\u003e shows the volume or the bit depth of the track, and can be switched off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.3\u003c\/strong\u003e with LDAC, LHDC and aptX HD, and \u003cstrong\u003eBT Sink\u003c\/strong\u003e to play music from your phone through the KANN ULTRA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAK File Drop\u003c\/strong\u003e wireless transfers and \u003cstrong\u003eReplayGain\u003c\/strong\u003e (up to 24-bit\/192kHz).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-band Wi-Fi\u003c\/strong\u003e (2.4\/5GHz) for streaming.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign: Forceful Impact\u003c\/h3\u003e\n\u003cp\u003eThe design concept is “Forceful Impact”: an over-scaled volume wheel that looks slammed into the hexagonal KANN body. Visible parting lines are minimised and the edge of the body around the wheel acts as its protector, emphasising a solid chunk of metal. Decorative parts continue the wheel’s serrated pattern to make it look bigger, a hairline spin finish and engraving sit behind it, and the wheel’s orientation was redesigned for use on a desk or in the hand. The aluminium body is Astro Gray.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/astell-kern-kann-ultra-digital-audio-player-photo-wheel.jpg?v=1791403414\" alt=\"Over-scaled volume wheel of the Astell\u0026amp;Kern KANN ULTRA\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/AKKANNULTRA_1000x856_79ebe731-27b2-4af4-a7f1-acd2c2618d32.jpg?v=1767202155\" alt=\"Astell\u0026amp;Kern KANN ULTRA on a desk with headphones\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC\u003c\/th\u003e\n\u003ctd\u003e2 × ESS ES9039MPRO · octa-core CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormats\u003c\/th\u003e\n\u003ctd\u003eWAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA · PCM 8kHz–768kHz (up to 32-bit) · native DSD64–DSD512\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeadphone out\u003c\/th\u003e\n\u003ctd\u003e3.5mm unbalanced (and optical) · 4.4mm balanced (5-pole) · up to 8 \/ 16Vrms · 1Ω \/ 1.3Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePre\/line out\u003c\/th\u003e\n\u003ctd\u003e3.5mm unbalanced · 4.4mm balanced (5-pole) · 2 \/ 4Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003eHeadphone ±0.006dB unbalanced · ±0.004dB balanced (20Hz–20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eS\/N\u003c\/th\u003e\n\u003ctd\u003eHeadphone 115 \/ 119dB · pre 110 \/ 126dB · line 110 \/ 125dB (unbalanced \/ balanced, 1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTHD+N\u003c\/th\u003e\n\u003ctd\u003eHeadphone 0.0004% · pre 0.0012% \/ 0.0005% · line 0.0013% \/ 0.0005% · IMD SMPTE 0.0006%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClock jitter\u003c\/th\u003e\n\u003ctd\u003e25ps typical · reference clock 200 femtoseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless\u003c\/th\u003e\n\u003ctd\u003eWi-Fi 802.11 a\/b\/g\/n\/ac (2.4\/5GHz) · Bluetooth 5.3 (A2DP, AVRCP, aptX HD, LDAC, LHDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScreen and storage\u003c\/th\u003e\n\u003ctd\u003e5.5-inch 1080 × 1920 touch · 128GB · microSD up to 1TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003e8,400mAh · about 11 hours · charge about 3.5 hours (PD 3.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e82.4 × 141.1 × 24.4mm (W × H × D) · about 390g · aluminium, Astro Gray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUSB-C charges the player and connects it to a Windows 8\/10\/11 or Mac computer. Firmware updates over the air.\u003c\/li\u003e\n\u003cli\u003eThe 4.4mm sockets accept 5-pole plugs only. There is no 2.5mm balanced output.\u003c\/li\u003e\n\u003cli\u003eIn the box: KANN ULTRA, USB-C to USB-C cable, three screen protectors, quick start guide and warranty card.\u003c\/li\u003e\n\u003cli\u003eCompare with the \u003ca href=\"\/products\/astell-kern-kann-max-digital-audio-player\"\u003eAstell\u0026amp;Kern KANN MAX\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astell \u0026 Kern","offers":[{"title":"Default Title","offer_id":57117259235715,"sku":"AKKANNULTRA","price":1599.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_f84a3bb4-7594-4599-ba14-86c811436793.jpg?v=1767202176"}],"url":"https:\/\/www.advancedmp3players.co.uk\/collections\/astell-kern.oembed","provider":"amp3","version":"1.0","type":"link"}