Description
The iFi UNO is a compact USB DAC and headphone amplifier designed to improve the sound of music, movies, games, and everyday digital entertainment. Its ESS DAC supports PCM up to 32-bit/384kHz, native DSD256, DXD, and MQA, providing a simple high-resolution audio upgrade for computers and compatible USB sources.
Three selectable analogue EQ modes tailor the sound for Music, Movies, or Gaming, while PowerMatch adjusts gain to suit different headphones. A 3.5mm S-Balanced headphone output delivers up to 211mW at 32Ω, and rear RCA outputs allow the UNO to connect to an amplifier or powered speakers.
Powered directly through USB-C and measuring just 88 × 81 × 26mm, the UNO provides an easy, space-saving way to upgrade desktop audio.
Key Features
- ESS Hi-Res DAC — Supports PCM up to 32-bit/384kHz, DSD256, DXD, and MQA.
- Music, Movie & Game Modes — Selectable analogue EQ modes optimize sound for different entertainment.
- 211mW Headphone Output — Provides up to 211mW at 32Ω.
- PowerMatch — Adjusts gain for different headphone requirements.
- 3.5mm S-Balanced Output — Provides low-noise headphone connectivity.
- RCA Line Outputs — Connects to amplifiers or powered speakers.
- USB-C Powered — Carries digital audio and power through a single connection.
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Compact Desktop Design — Measures just 88 × 81 × 26mm and weighs 92g.
Connectivity & Compatibility
Input
- USB-C — Audio & power
Outputs
- 3.5mm S-Balanced headphone
- Stereo RCA line output
Supported Audio
- PCM up to 32-bit/384kHz
- DSD256
- DXD 384kHz
- MQA
Compatible With
- Windows PCs
- Mac computers
- Compatible smartphones and tablets
- Headphones and IEMs
- Amplifiers and powered speakers
Frequently Asked Questions
What are the Music, Movie, and Game modes?
Can the iFi UNO power headphones?
Can I connect the UNO to powered speakers or an amplifier?
Specifications
| TECHNICAL SPECIFICATIONS | |
| DAC | Bit-Perfect DSD & DXD DAC by ESS |
| Dimensions | 88 x 81 x 26 mm (3.5" x 2.8" x 1.0") |
| DNR |
Line Section: ≥115dB @ 0dBFS Headphone Section: ≥110dB @ 0dBFS |
| Formats Supported |
DSD 256 / 11.3MHz DXD 384kHz PCM 384kHz MQA |
| Frequency Response | 10-80kHz (-0.5dB) |
| Input | USB-C |
| Limited Warranty | 12 Months* |
| Net Weight | 92 g (0.2 lbs) |
| Output | 2V max. |
| Power Consumption |
No Signal ~0.8W Max Signal ~1.5W |
| RMS Output Power | Headphone Section: ≥211mW @ 32Ω; 39mW @ 300Ω |
| SNR |
Line Section: ≥119dBA Headphone Section: ≥113dBA |
| THD+N |
Line Section: ≤0.03% @ 0dBFS Headphone Section: ≤0.02% (1.27V @ 16Ω) |
| WHAT'S INCLUDED | |
| In the Box |
1x Uno 1x USB-A to USB-C Cable 1x Quick Start Guide 1x iFi Warranty Card |
| DOWNLOADS | |
| User Manual | Download PDF |
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