{"product_id":"cayin-ru3-portable-usb-dac-earphone-amplifier-support-4-4mm-3-5mm-plug","title":"Cayin RU3 Portable USB DAC Earphone Amplifier Support 4.4mm 3.5mm Plug","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch1\u003eCayin RU3 Portable USB DAC \u0026amp; Headphone Amplifier\u003c\/h1\u003e\n\u003ch2\u003eCompact Powerhouse for High-Fidelity Listening\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCayin RU3\u003c\/strong\u003e is a high‑performance portable USB DAC and headphone amplifier that fits comfortably in the palm of your hand. Built around the flagship \u003cstrong\u003eESS ES9069Q DAC chip\u003c\/strong\u003e, the RU3 delivers studio‑grade decoding, precise signal amplification, and exceptional output power—all in a lightweight, 24‑gram aluminum body. In \u003cstrong\u003eHYP (Hyper) Mode\u003c\/strong\u003e, it produces up to \u003cstrong\u003e560 mW\u003c\/strong\u003e of balanced output, driving demanding headphones and IEMs with authority and dynamic control.\u003c\/p\u003e\n\u003ch3\u003eAvailable Colors\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBlack | Purple | Light Cyan\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eFlagship ESS ES9069Q DAC Architecture\u003c\/h2\u003e\n\u003cp\u003eEquipped with the industry‑leading \u003cstrong\u003eESS ES9069Q\u003c\/strong\u003e, the RU3 adopts the latest \u003cem\u003eHyperStream IV dual‑DAC design\u003c\/em\u003e and advanced \u003cem\u003eSabre HiFi technology\u003c\/em\u003e. Each channel uses an independent amplifier stage for superior signal separation and precise sound reproduction.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports \u003cstrong\u003ePCM up to 768 kHz \/ 32 bit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNative \u003cstrong\u003eDSD512 decoding\u003c\/strong\u003e without conversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic range \u0026gt; 130 dB\u003c\/strong\u003e – studio‑grade performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD+N as low as 0.0015%\u003c\/strong\u003e – virtually distortion‑free output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIndependent Clock \u0026amp; Power Design\u003c\/h2\u003e\n\u003cp\u003eThe RU3 features dedicated \u003cstrong\u003eLDO power regulation\u003c\/strong\u003e and an \u003cstrong\u003eultra‑low‑phase‑noise crystal oscillator\u003c\/strong\u003e to minimize distortion and crosstalk. This ensures a spacious, three‑dimensional soundstage with richer detail retrieval and greater sonic realism.\u003c\/p\u003e\n\u003ch2\u003eFour‑Channel Fully Balanced Amplification\u003c\/h2\u003e\n\u003cp\u003eA dual \u003cem\u003eTI OPA1602\u003c\/em\u003e precision op‑amp handles I\/V conversion and line output, paired with dual \u003cem\u003eSGM8262 low‑noise amplifiers\u003c\/em\u003e (3.5 nV\/√Hz, 110 dB gain). Together, they form a \u003cstrong\u003efully balanced four‑channel amplification architecture\u003c\/strong\u003e for uncompromising signal control and dynamic power delivery.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4 mm balanced output:\u003c\/strong\u003e 560 mW + 560 mW @ 32 Ω (HYP Mode)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5 mm single‑ended output:\u003c\/strong\u003e 180 mW + 180 mW @ 32 Ω (HYP Mode)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput impedance:\u003c\/strong\u003e 0.6 Ω (SE) \/ 1.2 Ω (balanced)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn \u003cstrong\u003eHYP Mode\u003c\/strong\u003e, the RU3 expands dynamic range while keeping distortion ultralow, offering a wide and precisely positioned soundstage for immersive, high‑energy performance.\u003c\/p\u003e\n\u003ch2\u003eSPV5068 RISC‑V Dual‑Core USB Processor\u003c\/h2\u003e\n\u003cp\u003eUSB input is managed by the \u003cstrong\u003eSPV5068 dual‑core RISC‑V processor\u003c\/strong\u003e, optimized for low latency and high efficiency. It ensures bit‑perfect data transfer and uncompromised integrity from source to DAC. The RU3 offers broad \u003cstrong\u003ecross‑platform compatibility\u003c\/strong\u003e and plug‑and‑play usability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports \u003cstrong\u003eUAC 1.0 \/ UAC 2.0 mode switching\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eAndroid, iOS, Windows, and macOS\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver‑free operation\u003c\/strong\u003e via standard UAC protocol\u003c\/li\u003e\n\u003cli\u003eAlso supports \u003cstrong\u003ePlayStation 5 and Nintendo Switch\u003c\/strong\u003e platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUltra‑Portable CNC‑Machined Aluminum Design\u003c\/h2\u003e\n\u003cp\u003ePrecision‑milled from \u003cstrong\u003eaerospace‑grade aluminum\u003c\/strong\u003e, the RU3 measures only 60 × 25.4 × 11 mm and weighs just 24 g. Its \u003cstrong\u003eanodized finish\u003c\/strong\u003e forms a dense, durable oxide layer that resists wear while maintaining a premium metallic feel—perfect for everyday portability in your pocket or keychain setup.\u003c\/p\u003e\n\u003ch2\u003e0.96‑Inch IPS Color Display\u003c\/h2\u003e\n\u003cp\u003eA vivid \u003cstrong\u003e0.96″ IPS touch display\u003c\/strong\u003e provides real‑time information such as volume level, gain, and power mode. Users can intuitively adjust settings without needing to access a smartphone or PC, ensuring total control at a glance.\u003c\/p\u003e\n\u003ch2\u003eCayin Control App – Your Sound, Your Way\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10‑band parametric EQ\u003c\/strong\u003e for fine‑tuning frequencies to personal taste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100‑step volume control\u003c\/strong\u003e for ultra‑precise listening adjustments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain and power mode selection\u003c\/strong\u003e optimized for different earphones and environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eESS ES9069Q flagship DAC with HyperStream IV architecture\u003c\/li\u003e\n\u003cli\u003eFully balanced 4‑channel amplification (up to 560 mW output)\u003c\/li\u003e\n\u003cli\u003eRISC‑V dual‑core USB controller for bit‑perfect signal handling\u003c\/li\u003e\n\u003cli\u003eSupports PCM 768 kHz \/ 32 bit and native DSD512 decoding\u003c\/li\u003e\n\u003cli\u003eAnodized aluminum body – 24 g ultraportable form factor\u003c\/li\u003e\n\u003cli\u003eColor IPS display and Cayin Control App integration\u003c\/li\u003e\n\u003cli\u003eCompatible with smartphones, computers, and gaming consoles\u003cem\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Cayin","offers":[{"title":"Black","offer_id":50898755977522,"sku":null,"price":218.0,"currency_code":"AUD","in_stock":true},{"title":"Light Cyan","offer_id":50898756010290,"sku":null,"price":218.0,"currency_code":"AUD","in_stock":true},{"title":"Purple","offer_id":50898756043058,"sku":null,"price":218.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/7347\/files\/d65e114fc8bf1d2de48cf6e9e0beb902.jpg?v=1770483276","url":"https:\/\/www.mtmtaudio.com\/en-au\/products\/cayin-ru3-portable-usb-dac-earphone-amplifier-support-4-4mm-3-5mm-plug","provider":"MTMTaudio","version":"1.0","type":"link"}