{"product_id":"cayin-btc-2-bluetooth-dac-headphone-amplifier","title":"Cayin BTC-2 Bluetooth DAC Headphone Amplifier","description":"\u003cp\u003eThe Cayin BTC-2 is a compact desktop Bluetooth DAC and headphone amplifier. It receives LDAC and aptX HD from your phone through a Qualcomm QCC5125, decodes with an ESS ES9018K2M in a four-channel balanced circuit, and drives headphones with up to 280mW per channel from its 4.4mm balanced output. With S\/PDIF and analogue inputs and outputs, an ALPS volume knob, an OLED display and a remote control, it also upgrades a TV, set-top box or hi-fi system. Choose black or silver.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-photo05.jpg?v=1791350150\" alt=\"Cayin BTC-2 Bluetooth DAC and headphone amplifier in silver\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-features.jpg?v=1791350154\" alt=\"Cayin BTC-2 features: QCC5125, ES9018K2M, OLED, Bluetooth 5.1, S\/PDIF, line in and out\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eHi-res Bluetooth 5.1\u003c\/h3\u003e\n\u003cp\u003eThe Qualcomm QCC5125 high-fidelity Bluetooth chip with Bluetooth 5.1 supports high-resolution codecs: LDAC, which carries up to 96kHz\/24-bit, and aptX HD, as well as aptX Low Latency, aptX, AAC and SBC. The result is wireless convenience with a stable connection and sound quality to match. A long press of the play button disconnects Bluetooth.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-bluetooth.jpg?v=1791350160\" alt=\"Cayin BTC-2 Bluetooth 5.1 with LDAC and aptX HD\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA balanced circuit, even over Bluetooth\u003c\/h3\u003e\n\u003cp\u003eUsing Bluetooth doesn’t mean Cayin compromised on the circuit. The BTC-2 has a dual-chip, four-channel balanced design that keeps the positive and negative signals separate through both decoding and amplification, significantly reducing noise and distortion for clearer, more accurate sound. The ES9018K2M, a low-power DAC designed for stereo systems, gives precise reproduction whether the music arrives by Bluetooth or S\/PDIF, and an OPA1652 audiophile op-amp, with strong current drive, a fast transient response and a low noise floor, and two RT6863 amplifiers do the driving: 280mW + 280mW balanced and 190mW + 190mW single-ended.\u003c\/p\u003e\n\u003ch3\u003eThree inputs, four outputs\u003c\/h3\u003e\n\u003cp\u003ePress SOURCE to switch between Bluetooth, S\/PDIF digital and line in. Each input can drive your headphones or feed the line output to an integrated amplifier or active speakers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e from a phone, tablet, music player, laptop or TV, decoded by the BTC-2, which can also pass the signal on from its S\/PDIF output to an AV receiver or another DAC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS\/PDIF coaxial in:\u003c\/strong\u003e up to 192kHz\/24-bit from a set-top box, TV, CD transport or DVD player, or a games console, decoded by the BTC-2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine in:\u003c\/strong\u003e an analogue source bypasses the internal DAC and goes straight to the amplifier circuit, so the BTC-2 works as a headphone amplifier for a phone, music player, set-top box, TV or CD player.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-in_bluetooth.jpg?v=1791350165\" alt=\"Cayin BTC-2 Bluetooth input to line, headphone and S\/PDIF outputs\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-in_spdif.jpg?v=1791350170\" alt=\"Cayin BTC-2 S\/PDIF digital input to headphone and line outputs\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-in_line.jpg?v=1791350174\" alt=\"Cayin BTC-2 line input to headphone and line outputs\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-connections.jpg?v=1791350179\" alt=\"Cayin BTC-2 front and rear connections\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eQuality parts and three filters\u003c\/h3\u003e\n\u003cp\u003eNichicon coupling capacitors from Japan keep the sound clear and transparent with minimal distortion and noise, and the volume knob turns a precise Japanese ALPS potentiometer, with a superior feel and low distortion and noise. A long press of SOURCE, or the FUN1 key on the remote, opens the filter menu, where you choose between fast roll-off, slow roll-off and minimum phase digital filters.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-volume.jpg?v=1791350182\" alt=\"The ALPS volume knob of the Cayin BTC-2\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-buttons.jpg?v=1791350186\" alt=\"Cayin BTC-2 front-panel buttons: source, play\/pause, track skip and volume\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDesigned for the desk\u003c\/h3\u003e\n\u003cp\u003eThe finely engineered all-metal chassis shields the circuits from outside electromagnetic fields, and its 6mm-thick aluminium front panel has a brushed, anodised finish. An OLED dot-matrix display shows the input and sample rate at a glance, and the included infrared remote controls the main functions from across the room. The high-gain rubber antenna detaches when you don’t use Bluetooth, saving space. Power comes in through USB-C, at only 5V 1A, so the included cable works with a wide range of USB chargers and even a power bank.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-oled.jpg?v=1791350191\" alt=\"The OLED display of the Cayin BTC-2\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/cayin-btc-2-bluetooth-dac-headphone-amplifier-photo-chassis.jpg?v=1791350194\" alt=\"Cayin BTC-2 in silver on a desk\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBluetooth\u003c\/th\u003e\n\u003ctd\u003e5.1 · Qualcomm QCC5125 · LDAC (up to 96kHz\/24-bit), aptX HD, aptX LL, aptX, AAC, SBC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC and amplifier\u003c\/th\u003e\n\u003ctd\u003eESS ES9018K2M · OPA1652 · 2 × RT6863 · four-channel balanced · fast, slow and minimum-phase filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs\u003c\/th\u003e\n\u003ctd\u003eBluetooth · S\/PDIF coaxial (up to 192kHz\/24-bit) · analogue line in (bypasses the DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e4.4mm balanced (280mW + 280mW) · 6.35mm (190mW + 190mW) · line out · S\/PDIF coaxial out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eSource, play\/pause, previous\/next, ALPS volume · IR remote · OLED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eUSB-C, 5V 1A · about 1.25W (LDAC, 32Ω headphones)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e168 × 167 × 39.5mm · 750g · black or 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\u003eHeadphones with 3.5mm plugs need a 6.35mm adapter, and 2.5mm balanced plugs need a 4.4mm adapter (not included).\u003c\/li\u003e\n\u003cli\u003eThere is no power adapter in the box: use the USB cable with any USB charger that gives 5V 1A, or a power bank.\u003c\/li\u003e\n\u003cli\u003eIn the box: BTC-2, USB cable, remote control and user manual.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cayin","offers":[{"title":"BLACK","offer_id":57117504569731,"sku":"CAYINBTC2-BLACK","price":149.0,"currency_code":"GBP","in_stock":true},{"title":"SILVER","offer_id":57117504602499,"sku":"CAYINBTC2-SILVER","price":149.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_7433b0e0-d360-4e25-8676-42cb042189b3.jpg?v=1767217030","url":"https:\/\/www.advancedmp3players.co.uk\/products\/cayin-btc-2-bluetooth-dac-headphone-amplifier","provider":"amp3","version":"1.0","type":"link"}