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iFi audio UNO DAC and Headphone Amplifier
Convenient, compact, and powerful, the UNO from iFi Audio is a 2-channel, USB-powered DAC and headphone amplifier, designed to elevate your music, movies, and games to new heights with an advanced DAC architecture. The UNO supports nearly any headphones or IEMs as well as active loudspeakers, with support for up to 300-ohm headphones and features such as automatic impedance matching to your preferred listening devices and three different EQ modes (Music, Movie, and Game) for optimal sound during your choice of entertainment.
Convenient, compact, and powerful, the UNO from iFi Audio is a 2-channel, USB-powered DAC and headphone amplifier, designed to elevate your music, movies, and games to new heights with an advanced DAC architecture. The UNO supports nearly any headphones or IEMs as well as active loudspeakers, with support for up to 300-ohm headphones and features such as automatic impedance matching to your preferred listening devices and three different EQ modes (Music, Movie, and Game) for optimal sound during your choice of entertainment.
The sophisticated ES9219 Sabre DAC chip sports quad DAC+ technology and a HyperStream III DAC architecture with time domain jitter elimination for stunning audio quality up to 32-bit / 348 kHz and support for PCM, DXD, DSD256, and MQA codecs. The premium amplification architecture ensures pristine sound quality whether using the 3.5mm headphone output or the gold-plated, stereo RCA line output, and the UNO comes with a USB-A to USB-C cable adapter to get you started right out of the box.
iFi audio Uno Specs
| Form Factor | Tabletop |
| Number of Headphone Channels | 2-Channel |
| Recommended Headphone Impedance | 32 to 300 Ohms |
| Headphone Output Power | 1/8" / 3.5 mm: 211 mW into 32 Ohms 1/8" / 3.5 mm Balanced: 39 mW into 300 Ohms |
| Digital Chipset | DAC: 1 x ESS ES9219 Sabre |
| EQ | EQ |
| Display | None |
Connectivity
| Analog Audio I/O | 1 x 1/8" / 3.5 mm TRRS Unbalanced Stereo Headphone Output (Front Panel) 1 x Stereo RCA Coaxial Unbalanced Mono Line Output (1 Stereo Pair, Rear Panel) |
| Digital Audio I/O | None |
| USB | 1 x USB-C (Digital Input) |
| Wireless Connectivity | None |
Performance
| Frequency Response | 10 Hz to 80 kHz -0.5 dB |
| Maximum Output Level | 2 V |
| Dynamic Range | 115 dB |
| Impedance | 1/8" / 3.5 mm Headphone Outputs: < 1 Ohm D/A Converters: < 100 Ohms |
| THD+N | 1/8" / 3.5 mm Headphone Outputs: 0.02% (1.27 V at 16 Ohms) D/A Converters: 0.03% (At 0 dBFS) |
| SNR | 1/8" / 3.5 mm Headphone Outputs: 113 dBA D/A Converters: 119 dBA |
| Channel Separation | 1/8" / 3.5 mm Headphone Outputs: > 80 dB (At 1 kHz into 600 Ohms) |
Digital Audio
| Sample Rates | Up to 384 kHz (DXD, PCM) 11.2 MHz (DSD) |
| Bit Depths | 32-Bit |
Compatibility
| OS Compatibility | Windows macOS *As of November, 2022: Check with manufacturer for the most up-to-date compatibility |
| Supported Drivers/API & Plug-Ins | macOS Class-Compliant (No Driver Needed) Windows Driver Downloadable from Manufacturer |
| Mobile Device Compatibility | None |
| Required Hardware | USB Cable |
Power
| Power Requirements | USB Bus Power |
| Ground Lift | No |
| DC Input Power | 5 VDC at 0.5A (USB Bus Power) |
| AC/DC Power Adapter | None |
| Power Consumption | 0.8 W (Idle) 1.5 W (Maximum) |
Physical
| Dimensions | 3.5 x 2.8 x 1" / 8.9 x 7.1 x 2.5 cm |
| Weight | 0.2 lb / 91.0 g |
Packaging Info
| Package Weight | 0.34 lb |
| Box Dimensions (LxWxH) | 4.9 x 4.1 x 1.7" |
In the Box
- iFi audio UNO DAC and Headphone Amplifier
- USB-A to USB-C Cable
- 2-Year Manufacturer Warranty
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