Cayin Audio RU3 Portable USB DAC / Headphone Amplifier
Frequently Bought Together
Product Overview & Specifications
The Cayin RU3 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.
Housed 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.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- ESS ES9069Q HyperStream IV DAC: 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.
- Balanced Quad-Drive Amplification: Incorporates dual TI OPA1602 op-amps for precision I/V conversion alongside dual SGM8262 amplifiers delivering up to 560mW + 560mW @ 32Ω.
- HYP / STD Dual Power Modes: Hyper Mode boosts output power and dynamic range for demanding loads, while Standard Mode optimizes power consumption for everyday portable use.
- 0.96-Inch IPS Color Display: Displays real-time system status, volume levels, gain settings, power modes, and current audio sample rates.
- Dual 3.5mm & 4.4mm Outputs: Features both 3.5mm single-ended and 4.4mm balanced phone outputs (PO) with selectable line output (LO) functionality.
- Cayin Control App & 10-Band EQ: App integration provides access to a 10-band high-precision lossless EQ and fine-grained hardware parameters.
- UAC 1.0 / UAC 2.0 Compatibility: 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).
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | Portable USB DAC & Headphone Amplifier |
| Brand / Model | Cayin RU3 |
| DAC Chipset | ESS ES9069Q (HyperStream IV Architecture) |
| USB Audio Bridge | SPV5068 RISC-V Processor |
| Amplifier Stage | 2 x TI OPA1602 (I/V & Line Drive) + 2 x SGM8262 (Headphone Amp) |
| Supported Formats | PCM up to 32-bit / 768 kHz | Native DSD512 |
| USB Compatibility | UAC 1.0 (Driver-Free) / UAC 2.0 (High-Resolution) |
| 3.5mm Single-Ended Power Output | 180 mW + 180 mW @ 32 Ω (THD+N ≤ 1%) |
| 4.4mm Balanced Power Output | 560 mW + 560 mW @ 32 Ω (THD+N ≤ 1%) |
| THD+N | 3.5mm: 0.0018% @ 32 Ω (1 kHz, 1.0Vrms) 4.4mm: 0.0015% @ 32 Ω (1 kHz, 2.0Vrms) |
| Signal-to-Noise Ratio (SNR) | 3.5mm: 115 dB (20 Hz–20 kHz, A-Weighted) 4.4mm: 117 dB (20 Hz–20 kHz, A-Weighted) |
| Dynamic Range | 3.5mm: 115 dB (20 Hz–20 kHz, A-Weighted) 4.4mm: 117 dB (20 Hz–20 kHz, A-Weighted) |
| Frequency Response | 20 Hz – 50 kHz (±0.2 dB) |
| Crosstalk | 3.5mm: 82 dB | 4.4mm: 105 dB |
| Output Impedance | 3.5mm: 0.7 Ω | 4.4mm: 1.2 Ω |
| Display Screen | 0.96-inch IPS Color Display |
| App Integration | Cayin Control App (Supports 10-Band Lossless Parametric EQ) |
| Chassis Material & Construction | Unibody CNC-Milled Aerospace-Grade Aluminum Alloy |
| OS Compatibility | Android, iOS, Windows, macOS, and Gaming Consoles |
Customer Reviews
Don't let the hassle of selling privately hold you back. We accept almost any trade-in (of lower value) to make your upgrade affordable. We even handle the logistics with our seamless courier service.
How it works:
The Offer: If you are happy with our quote, simply contact us to complete your purchase.
The Collection & Delivery: We will contact you to arrange the collection of your old equipment and delivery of your new equipment.
Ready to upgrade? Please complete the details below for a fast, accurate valuation. We will base your part exchange against the item you are currently viewing on the site.
Cayin Audio RU3 Portable USB DAC / Headphone Amplifier
Price Match Request
Seen the Cayin Audio RU3 Portable USB DAC / Headphone Amplifier cheaper elsewhere? Let us know and we'll aim to match or beat it.
