Cayin Audio RU3 Portable USB DAC / Headphone Amplifier Dongle
£99

Features
- ESS ES9069Q DAC with Hyper Stream IV architecture
- Dual OPA1602 and dual SGM8262 amplifier design
- SPV5068 RISC-V USB audio bridge processor
- Supports PCM 768kHz and native DSD512 playback
- Dual 3.5mm and 4.4mm PO/LO outputs
- 0.96-inch IPS color display with system info
- CNC aluminum body with HYP and STD modes
Specifications
|
Category |
Parameter |
Specification |
|
Core Components Display |
USB Audio Bridge |
SPV5068 (RISC-V high-performance dual-core heterogeneous audio architecture) |
|
DAC Chip |
ES9069Q ×1 |
|
|
Op-Amp IC |
OPA1602 ×2 |
|
|
Headphone Amplifier IC |
SGM8262 ×2 |
|
|
Type |
0.96-inch IPS LCD |
|
|
Outputs |
Headphone Output |
3.5mm Single-Ended + 4.4mm Balanced (PO/LO shared) |
|
Line Output |
3.5mm Single-Ended + 4.4mm Balanced (PO/LO shared) |
|
|
Physical |
Dimensions |
60 × 25.4 × 11 mm |
|
Net Weight |
24 g |
|
|
Colors |
Black, Purple, Light Cyan |
|
|
3.5mm Single-Ended PO |
Power Output |
180mW + 180mW (32Ω, THD+N ≤1%) |
|
THD+N |
0.0018% (32Ω, 1kHz, 1.0 V rms) |
|
|
SNR |
115dB (20–20kHz) |
|
|
Dynamic Range |
115dB (20–20kHz) |
|
|
Frequency Response |
20Hz–50kHz (±0.2dB) |
|
|
Crosstalk |
82dB |
|
|
Output Impedance |
0.7Ω |
|
|
4.4mm Balanced PO |
Power Output |
560mW + 560mW (32Ω, THD+N ≤1%) |
|
THD+N |
0.0015% (32Ω, 1kHz, 2.0 V rms) |
|
|
SNR |
117dB (20–20kHz) |
|
|
Dynamic Range |
117dB (20–20kHz) |
|
|
Frequency Response |
20Hz–50kHz (±0.2dB) |
|
|
Crosstalk |
105dB |
|
|
Output Impedance |
1.2Ω |
|
|
USB Input |
UAC Mode |
Supports UAC 1.0 and UAC 2.0 |
|
Supported Formats |
UAC 1.0: Driver-free operation; UAC 2.0: Up to 32-bit / 768 kHz PCM and DSD512 native playback |

Description
Engineered for Precision and Portability, RU3 Packs High-Precision Decoding and Dynamic Power into a Sleek, Pocket-Sized Form








UAC 2.0/1.0 Support
Broader Compatibility for More Devices
RU3 offers seamless compatibility with Android, iOS, Windows, and macOS systems, allowing flexible switching between UAC 1.0 and UAC 2.0 modes.
Even in gaming setups, RU3 connects effortlessly to PS5, Nintendo Switch, and other consoles via UAC 1.0, letting you enjoy immersive gameplay enriched by Hi-Fi-grade audio.


0.96-Inch IPS Color Display
Customizable UI Themes for a Personalized
Experience
The 0.96-inch IPS color LCD provides clear visual feedback for decoding status and system settings.
Choose from four customizable Ul themes to personalize your interface.
Responsive multifunction buttons ensure intuitive, precise control, while the clean Ul delivers a smooth, fluid user experience.



Audiophile-Grade Type-C Cable
RU3 includes an audiophile-grade, anti-interference Type-C cable with a high-density shielding design that minimizes signal loss and distortion, ensuring pure, noise-free audio transmission.

Additional information
| Colour | Black, Light Cayin, purple |
|---|
Warranty
Backed with a 1-year Cayin Audio warranty
Delivery Info

Delivery Information
As a company our primary goal is to provide a seamless service that results in customer satisfaction. We aim to deliver within 3 working days. Unfortunately, there may be occasions where this time frame may not be met due to unforeseen circumstances; in this instance, we deliver product/s as soon as we can. All delivery charges are included within the prices quoted, unless otherwise specified.
All small items are usually delivered between 9am and 6pm, on a Monday to Friday, unless a Saturday delivery is requested. Follow My Parcel is an industry-changing innovation from DPD Local, which will give your customers unparalleled levels of information and peace of mind.Not only will your customers receive a one hour delivery timeslot, but they’ll now also be able to track the progress of their parcels on a map as our drivers make their way to the delivery addresses. Follow My Parcel will:

