{"product_id":"cayin-audio-ru3-portable-usb-dac-headphone-amplifier","title":"Cayin Audio RU3 Portable USB DAC \/ Headphone Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eCayin RU3\u003c\/strong\u003e is a high-performance portable USB DAC and headphone amplifier engineered to deliver desktop-grade audio quality from smartphones, tablets, and computers. Built around an ESS ES9069Q DAC featuring HyperStream IV architecture and an SPV5068 RISC-V USB audio bridge processor, the RU3 supports high-resolution audio decoding up to PCM 32-bit\/768kHz and native DSD512.\u003c\/p\u003e\n\n\u003cp\u003eHoused in an anodized CNC-milled aerospace aluminum chassis with an integrated 0.96-inch IPS color display, the RU3 features a fully balanced quad-drive amplification stage powered by dual TI OPA1602 op-amps and dual SGM8262 amplifiers. With switchable Hyper (HYP) and Standard (STD) power modes, high\/low gain controls, flexible UAC 1.0\/2.0 compatibility, and Cayin Control App integration featuring a 10-band parametric EQ, the RU3 offers exceptional driving power and sound customization for both IEMs and full-size headphones.\u003c\/p\u003e\n\n\u003ch3\u003eKEY FEATURES \u0026amp; PROPRIETARY TECHNOLOGIES\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eESS ES9069Q HyperStream IV DAC:\u003c\/strong\u003e Utilizes ESS’s latest SABRE HiFi DAC architecture with an ultra-low phase noise oscillator and dedicated LDO power supply for exceptional channel separation and low distortion.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBalanced Quad-Drive Amplification:\u003c\/strong\u003e Incorporates dual TI OPA1602 op-amps for precision I\/V conversion alongside dual SGM8262 amplifiers delivering up to 560mW + 560mW @ 32Ω.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eHYP \/ STD Dual Power Modes:\u003c\/strong\u003e Hyper Mode boosts output power and dynamic range for demanding loads, while Standard Mode optimizes power consumption for everyday portable use.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e0.96-Inch IPS Color Display:\u003c\/strong\u003e Displays real-time system status, volume levels, gain settings, power modes, and current audio sample rates.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDual 3.5mm \u0026amp; 4.4mm Outputs:\u003c\/strong\u003e Features both 3.5mm single-ended and 4.4mm balanced phone outputs (PO) with selectable line output (LO) functionality.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCayin Control App \u0026amp; 10-Band EQ:\u003c\/strong\u003e App integration provides access to a 10-band high-precision lossless EQ and fine-grained hardware parameters.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eUAC 1.0 \/ UAC 2.0 Compatibility:\u003c\/strong\u003e Switchable USB Audio Class modes ensure plug-and-play driverless compatibility with gaming consoles (UAC 1.0) as well as Hi-Res audio sources on Android, iOS, Windows, and macOS (UAC 2.0).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Category\u003c\/td\u003e\n      \u003ctd\u003ePortable USB DAC \u0026amp; Headphone Amplifier\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBrand \/ Model\u003c\/td\u003e\n      \u003ctd\u003eCayin RU3\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDAC Chipset\u003c\/td\u003e\n      \u003ctd\u003eESS ES9069Q (HyperStream IV Architecture)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eUSB Audio Bridge\u003c\/td\u003e\n      \u003ctd\u003eSPV5068 RISC-V Processor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAmplifier Stage\u003c\/td\u003e\n      \u003ctd\u003e2 x TI OPA1602 (I\/V \u0026amp; Line Drive) + 2 x SGM8262 (Headphone Amp)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSupported Formats\u003c\/td\u003e\n      \u003ctd\u003ePCM up to 32-bit \/ 768 kHz | Native DSD512\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eUSB Compatibility\u003c\/td\u003e\n      \u003ctd\u003eUAC 1.0 (Driver-Free) \/ UAC 2.0 (High-Resolution)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e3.5mm Single-Ended Power Output\u003c\/td\u003e\n      \u003ctd\u003e180 mW + 180 mW @ 32 Ω (THD+N ≤ 1%)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e4.4mm Balanced Power Output\u003c\/td\u003e\n      \u003ctd\u003e560 mW + 560 mW @ 32 Ω (THD+N ≤ 1%)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTHD+N\u003c\/td\u003e\n      \u003ctd\u003e3.5mm: 0.0018% @ 32 Ω (1 kHz, 1.0Vrms)\u003cbr\u003e4.4mm: 0.0015% @ 32 Ω (1 kHz, 2.0Vrms)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal-to-Noise Ratio (SNR)\u003c\/td\u003e\n      \u003ctd\u003e3.5mm: 115 dB (20 Hz–20 kHz, A-Weighted)\u003cbr\u003e4.4mm: 117 dB (20 Hz–20 kHz, A-Weighted)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDynamic Range\u003c\/td\u003e\n      \u003ctd\u003e3.5mm: 115 dB (20 Hz–20 kHz, A-Weighted)\u003cbr\u003e4.4mm: 117 dB (20 Hz–20 kHz, A-Weighted)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFrequency Response\u003c\/td\u003e\n      \u003ctd\u003e20 Hz – 50 kHz (±0.2 dB)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCrosstalk\u003c\/td\u003e\n      \u003ctd\u003e3.5mm: 82 dB | 4.4mm: 105 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOutput Impedance\u003c\/td\u003e\n      \u003ctd\u003e3.5mm: 0.7 Ω | 4.4mm: 1.2 Ω\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDisplay Screen\u003c\/td\u003e\n      \u003ctd\u003e0.96-inch IPS Color Display\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApp Integration\u003c\/td\u003e\n      \u003ctd\u003eCayin Control App (Supports 10-Band Lossless Parametric EQ)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eChassis Material \u0026amp; Construction\u003c\/td\u003e\n      \u003ctd\u003eUnibody CNC-Milled Aerospace-Grade Aluminum Alloy\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOS Compatibility\u003c\/td\u003e\n      \u003ctd\u003eAndroid, iOS, Windows, macOS, and Gaming Consoles\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Cayin","offers":[{"title":"Black","offer_id":53776145023242,"sku":"CAYIN-RU3-B","price":99.0,"currency_code":"GBP","in_stock":true},{"title":"Purple","offer_id":53776145056010,"sku":"CAYIN-RU3-LC","price":99.0,"currency_code":"GBP","in_stock":true},{"title":"Green","offer_id":53836179931402,"sku":"CAYIN-RU3-94237","price":99.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/cayin-audio-ru3-portable-usb-dac-headphone-amplifier-51173-p_c0b7ba6a-46f2-4bf5-9c79-c1df57d47275.jpg?v=1789921419","url":"https:\/\/audioemotion.co.uk\/products\/cayin-audio-ru3-portable-usb-dac-headphone-amplifier","provider":"Audio Emotion Limited","version":"1.0","type":"link"}