Cayin RU7 DAC/Amp Dongle - Mint - Verified by HiFiLoop
Overview
The Cayin RU7 is a rare breed in the dongle world: a fully discrete 1-bit DAC design built for musical flow, density, and realism—without the “clinical” edge many compact DACs can bring. This is a Mint (99% new) full-set unit, delivering flagship-style tone and drive for less than new pricing.
Condition and Included Items
Mint / Collector Quality: Like new with minimal handling marks, ideal for clean desk setups and everyday carry.
- No obvious cosmetic defects observed.
Mandatory: The device has passed all functional tests.
Sonic Signature & Pairing
RU7 is designed around Cayin’s discrete 1-bit approach and “All-to-DSD” processing, aiming for a smooth, organic presentation with strong micro-dynamics and an effortless sense of flow. With both 3.5mm and 4.4mm outputs, it’s an easy match for sensitive IEMs and many portable headphones, especially when you want more body and texture on the go.
To unleash the full potential of this device, we recommend pairing it with gear from our Headphones Collection.
Technical Highlights (Mobile-Table)
| DAC Architecture | Discrete 1-bit resistor network design |
| Hi-Res Support | PCM up to 384kHz; Native DSD64–DSD256 |
| All-to-DSD Modes | Selectable DSD64 / DSD128 / DSD256 conversion |
| Outputs | 3.5mm single-ended + 4.4mm balanced; line-out supported |
| Output Power (@32Ω) | Up to 400mW (4.4mm) / 160mW (3.5mm) |
| Volume Control | 100-step discrete resistor volume (3 segments) |
| Size / Weight | 66 × 24 × 12 mm; 25 g |
What's in the Box
- Cayin RU7 dongle DAC/amp
- Full original retail set (box + original accessories)
Why Buy Used from HiFiLoop?
- Listing photos and final unit details are reviewed before final payment.
- Included accessories, missing items, and version details are documented.
- Function checks are completed before dispatch.
- Shipping method, destination costs, and support coverage are confirmed case by case.
If you are unsure, send us the model, destination, and condition target before payment.
Condition Report
Condition grade, visible wear, included accessories, missing items, and final photos are reviewed before payment.
For this unit, please refer to the listing photos and included-item notes above.
Shipping & Support
Shipping method, estimated delivery, destination-related costs, return handling, and support coverage are confirmed before final payment based on the exact item and destination.
Any support coverage or return terms that apply to this unit will be stated in the final confirmation before payment.
Tech Specs
Refer to official manufacturer specifications.