{"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","url":"https:\/\/www.advancedmp3players.co.uk\/products\/astell-kern-a-norma-sr35-digital-audio-player","provider":"amp3","version":"1.0","type":"link"}