{"product_id":"cayin-ru3-portable-usb-dac-amp","title":"Cayin RU3 Portable USB DAC\/Amp","description":"\u003cp\u003e\u003cem\u003eNote: We currently only have black in stock.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003e32-Bit \/ 768 kHz USB DAC Dongle\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe Cayin RU3 is a portable USB DAC and headphone amplifier dongle that combines an ESS ES9069Q DAC, SPV5068 RISC-V dual-core audio processor, 32-bit \/ 768 kHz PCM support, native DSD512 playback, 3.5mm single-ended and 4.4mm balanced outputs, HYP \/ STD power modes, app control, and a 0.96-inch IPS color display in a compact CNC aluminum chassis.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHigh-resolution decoding\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe RU3 uses a single ESS ES9069Q DAC with a dual-channel design based on ESS HyperStream IV Dual DAC architecture and SABRE HiFi technology. It supports PCM up to 32-bit \/ 768 kHz and native DSD512, giving you broad high-resolution file support whether you're listening from a phone, laptop, or tablet. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFully-balanced power\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe RU3 pairs two TI OPA1602 op-amps with two SGM8262 low-noise headphone amplifier chips to create a fully-balanced quad-drive architecture. That means the left and right channels are separated, which helps preserve imaging, channel balance, and clean output. In Hyper Mode, the 4.4mm balanced output delivers up to 560mW + 560mW at 32Ω, while the 3.5mm single-ended output delivers up to 180mW + 180mW at 32Ω.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTwo power modes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe RU3 gives you two ways to manage output. HYP Mode unlocks the RU3’s higher power output for headphones that need more drive, while STD Mode lowers power draw and heat for everyday listening from mobile devices. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePhone and line outputs\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe RU3 includes both 3.5mm single-ended and 4.4mm balanced outputs, and both can operate as phone output or line output. Use phone output when connecting headphones or IEMs directly. Use line output when sending signal to an external amplifier.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eApp-based control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThrough the Cayin Control App, the RU3 gives you access to volume, output mode, channel balance, gain, digital filters, UAC mode, UI themes, and EQ. The app includes 100-step volume control, two power modes, two gain levels, five digital filters, four UI themes, 20-step channel balance, and 10-band parametric EQ. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eLossless EQ customization\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 10-band high-precision lossless EQ lets you make more detailed adjustments than a basic bass-and-treble control. You can reduce a sharp region, add a little weight to lean headphones, or save custom EQ profiles for different IEMs and headphones. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eClear onboard display\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 0.96-inch IPS color display shows decoding status and system settings at a glance. Instead of guessing which mode you're in, you can check volume, gain, EQ, power mode, UAC mode, and playback format directly on the device. The physical multifunction buttons give you quick control without having to reach for the app every time.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBroad device compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe RU3 supports UAC 1.0 and UAC 2.0, helping it work across Android, iOS, Windows, and macOS devices. UAC 1.0 also supports driver-free use with compatible gaming devices such as PS5 and Nintendo Switch. That gives you one small DAC\/amp for music, movies, travel, and gaming without keeping separate adapters for every device.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePortable USB DAC and headphone amplifier dongle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eESS ES9069Q DAC with HyperStream IV Dual DAC architecture\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSPV5068 RISC-V dual-core audio processor\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports PCM up to 32-bit \/ 768 kHz and native DSD512\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFully-balanced quad-drive architecture\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm single-ended and 4.4mm balanced outputs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePO\/LO shared output design for headphones and external amplifiers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 560mW + 560mW at 32Ω from the 4.4mm balanced output\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHYP \/ STD dual power modes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-band high-precision lossless EQ through Cayin Control App\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e100-step volume control, two gain levels, five digital filters, and 20-step channel balance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e0.96-inch IPS color display with four UI themes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUAC 1.0 and UAC 2.0 support\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCNC aluminum chassis in Black, Purple, and Light Cyan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUSB audio bridge: SPV5068 RISC-V high-performance dual-core heterogeneous audio architecture\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDAC chip: ES9069Q ×1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOp-amp IC: OPA1602 ×2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeadphone amplifier IC: SGM8262 ×2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDisplay: 0.96-inch IPS LCD\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeadphone output: 3.5mm single-ended + 4.4mm balanced, PO\/LO shared\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLine output: 3.5mm single-ended + 4.4mm balanced, PO\/LO shared\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.36 × 1 × 0.43 in (60 × 25.4 × 11 mm)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNet weight: 0.85 oz (24 g)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm power output: 180mW + 180mW at 32Ω, THD+N ≤ 1%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm THD+N: 0.0018% at 32Ω, 1kHz, output 1.0V rms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm SNR: 115dB, 20Hz–20kHz, A-weighted\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm dynamic range: 115dB, 20Hz–20kHz, A-weighted\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm frequency response: 20Hz–50kHz, ±0.2dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm crosstalk: 82dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5mm output impedance: 0.7Ω\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm power output: 560mW + 560mW at 32Ω, THD+N ≤ 1%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm THD+N: 0.0015% at 32Ω, 1kHz, output 2.0V rms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm SNR: 117dB, 20Hz–20kHz, A-weighted\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm dynamic range: 117dB, 20Hz–20kHz, A-weighted\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm frequency response: 20Hz–50kHz, ±0.2dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm crosstalk: 105dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4.4mm output impedance: 1.2Ω\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUAC mode: UAC 1.0 and UAC 2.0\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupported formats: UAC 1.0 driver-free operation, UAC 2.0 up to 32-bit \/ 768 kHz\u003c\/li\u003e\n\u003cli\u003ePCM and DSD512 native playback\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat’s included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCayin RU3 portable USB DAC and headphone amplifier dongle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAudiophile-grade anti-interference Type-C cable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cayin","offers":[{"title":"Default Title","offer_id":47611531198700,"sku":"APS-1324-1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-cayin-dac-digital-to-analog-converter-cayin-ru3-portable-usb-dac-amp-1237254666.jpg?v=1778272569","url":"https:\/\/apos.audio\/products\/cayin-ru3-portable-usb-dac-amp","provider":"Apos","version":"1.0","type":"link"}