{"product_id":"cayin-ru7","title":"Cayin Audio RU7 1 Bit USB DAC \/ Headphone Amplifier","description":"\n\u003ch3\u003eRU7 Dongle DAC\u003c\/h3\u003e\n\u003cp\u003eFully Balanced Resistor Networks Discrete 1-Bit DAC for DSD Format.\u003c\/p\u003e\n\u003cp\u003eA new benchmark for ultra-portable An Irresistible Upgrade Purposively designed micro-miniaturized 1-bit DAC circuit from discrete components Convert digital signal to analogue signal through a fully differentiate 4-ch DAC architecture.\u003c\/p\u003e\n\u003cp\u003eThe 1-Bit DAC circuit is a resistor network composed of 128 pcs (4 x32) high precision Thin Film Resistors, this is closely resemble to the discrete DAC of our N7 DAP.\u003c\/p\u003e\n\u003cp\u003eThe output of the resistor network will go through a 3-level active LPF and then converted to single-ended signal for volume adjustment.\u003c\/p\u003e\n\u003ch3\u003eHigh Power Parallel Phone Amplifiers\u003c\/h3\u003e\n\u003cp\u003eDual amplifiers in parallel, providing 4-CH high power Balanced Driven output The second phone amplifier is a parallel unity gain inverting phase amplifier An impressive upgrade in phone output power : 3.5mm SE, 160mW @3252 4.4mm BAL, 400mW @3252\u003c\/p\u003e\n\u003ch3\u003eShared Line Out Conviently Connected\u003c\/h3\u003e\n\u003cp\u003eThe shared line out function will configure the 3.5mm or 4.4mm phone output into fixed voltage output (bypassing volume control): 3.5mm SE, 160mW @3282 4.4mm BAL, 400mW @322 The line out voltage are carefully selected to retain as much details and dynamic of the 1-Bit DAC with minimum noise and distortion. Enable you to connect the RU7 to portable desktop amplifier or home audio system and used it as an miniature 1-Bit DAC.\u003c\/p\u003e\n\u003ch3\u003eDiscrete Volume Control\u003c\/h3\u003e\n\u003cp\u003eDiscrete Resistor Network DAC circuit is very demanding on incoming data integrity, we recommend users to keep the digital volume of mobile phone at full output to safeguard the quality of audio digital signal. When off-the-shelf analog volume options cannot meet high precision, low noise, low power consumption requirement of RU7, we developed our own discrete resistor network volume control 100 steps volume control through 3 segments of resistors and switching relays * offer precise control over a wide volume range, satisfy even the need of most sensitive.\u003c\/p\u003e\n\u003cp\u003eIM users:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSegment 1: 1-49\u003c\/li\u003e\n\u003cli\u003eSegment 2: 50-79\u003c\/li\u003e\n\u003cli\u003eSegment 3: 80-100\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDual PCB to Minimise Interference To minimize interference, RU6 circuitry\u003c\/h3\u003e\n\u003cp\u003eis splited into TWO 6-layers PCB, with digital and analog circuit installed in seperate boards. Safeguard signal integrity, make sure the noise from reference clock and DSP will not bleed into amplification circuit.\u003c\/p\u003e\n\u003ch3\u003eOutstanding Digital Audio Capability with User Selectable All-to-DSD\u003c\/h3\u003e\n\u003cp\u003eRU7 supports PCM up to 384kHz and native DSD from DSD64 to DSD256. Its Audio Bridge will receive different audio format and go through high precision signal enhancement. All digital audio signal will convert to designated DSD format (DSD64\/DSD128\/DSD256) before feeding to the discrete 1-bit DAC circuit.\u003c\/p\u003e\n\u003ch3\u003eLow Power Consumption Compatible with Common Platforms\u003c\/h3\u003e\n\u003cp\u003eDiscrete resisotr network is a low-power DAC circuit when compare to other highly integrated DAC chipset, minimise power drain from mobile source. Redesigned amplification circuit increase output power dramatically while maintains the overall power drain at 100-110mA Low power consumption allows RU7 compatibles with the following digital audio sources:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAndroid based mobile devices\u003c\/li\u003e\n\u003cli\u003eiOS and iPad OS mobile devices\u003c\/li\u003e\n\u003cli\u003emacOS computers\u003c\/li\u003e\n\u003cli\u003eWindow 7\/8\/8.1\/10 computers\u003c\/li\u003e\n\u003cli\u003eDigital Audio Players with USB Audio output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBundled Protective Case, A Compact and Nimble Powerhouse\u003c\/h3\u003e\n\u003cp\u003eSoft and tender handmade magnetic leather case Custom make for RU7, precise cutout offers tight-fit protection and elegant presentation Two circular metal plate with adhesive tape pad are included.\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAC:Fully Balanced Resistor Networks Phone Out\u003c\/td\u003e\n\u003ctd\u003eDiscrete 1-Bit DSD DAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB\u003c\/td\u003e\n\u003ctd\u003eType C|| USB Audio Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Decoding\u003c\/td\u003e\n\u003ctd\u003eIn|| PCM 44.1kHz ~ 384kHz, DSD64\/128\/256, Native\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll to DSD\u003c\/td\u003e\n\u003ctd\u003eDSD64\/128\/256 (user select)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eVolume +\/-, Mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eCNC Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ehone Out Line Out:3.5 mm Single-ended (Shared)\u003c\/td\u003e\n\u003ctd\u003e`.4 mm Balanced (Shared)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e0.96 inch 128×64 OLED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories\u003c\/td\u003e\n\u003ctd\u003eUSB C to C cable (Shielded), USB A to C adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase\u003c\/td\u003e\n\u003ctd\u003eLeather Case (Bundled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimension\u003c\/td\u003e\n\u003ctd\u003e66mm x 24mm x 12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e~25g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e Cain RU7 Headphone Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e3.5mm Single-Ended\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower rating\u003c\/td\u003e\n\u003ctd\u003e160mW @320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFreq. Response\u003c\/td\u003e\n\u003ctd\u003e20Hz-42kHz (0.5dB) (PCM to DSD256)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e0.006% (1kHz, Output|| 1.0V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e115dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e114dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Separation\u003c\/td\u003e\n\u003ctd\u003e76dB (1kHz, 20Hz~20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e0.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e4.4mm Balanced\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower rating\u003c\/td\u003e\n\u003ctd\u003e400mW @320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFreq. Response\u003c\/td\u003e\n\u003ctd\u003e20Hz-42kHz (0.5dB) (PCM to DSD256)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e0.006% (1kHz, Output|| 1.4V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e115dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e112dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Separation\u003c\/td\u003e\n\u003ctd\u003e92dB (1kHz, 20Hz~20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e3.5mm Single-Ended\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Level\u003c\/td\u003e\n\u003ctd\u003e1.2Vrms (Fixed, 1kHz@@10k)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e0.02% (1kHz. 20Hz~20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e114dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e113dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Separation\u003c\/td\u003e\n\u003ctd\u003e100dB (1kHz, 20Hz~20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e0.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e 4.4mm Balanced\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Level\u003c\/td\u003e\n\u003ctd\u003e2.4 Vrms (Fixed, 1kHz@10 k 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e0.02% (1kHz. 20Hz~20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e114dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e112dB (20Hz-20kHz, A-Weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Separation\u003c\/td\u003e\n\u003ctd\u003e102dB (1kHz, 20Hz~20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n","brand":"Cayin","offers":[{"title":"Default Title","offer_id":51938591244554,"sku":"CAYIN-8031","price":238.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/cayin-audio-ru7-1-bit-usb-dac-headphone-amplifier-39953-p.webp?v=1760363507","url":"https:\/\/audioemotion.co.uk\/products\/cayin-ru7","provider":"Audio Emotion Limited","version":"1.0","type":"link"}