User Manual for iFi audio models including: uno DAC and Headphone Amplifier, uno, DAC and Headphone Amplifier, Headphone Amplifier, Amplifier

UNO Manual Ver1.1

User Manual

iFi audio | the Award-Winning Audio Technology Company

uno - iFi audio


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uno-Manual Ver1.1
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Thank you for purchasing the UNO. The UNO is a USB-audio DAC amplifier.
1. EQ mode selection
This button selects the following EQ modes. The colour of the EQ mode LED on top (item 6) indicates the selection.

Game

Movie

Music

Off

2. PowerMatch
PowerMatch setting should be off for IEMs and on for on/over-ear headphones.
Warning: Due to the high power of UNO, before changing the PowerMatch setting, always start off at a low volume level so that there is no risk of damage to your headphones, speakers or your hearing. iFi audio is not responsible for any hearing or equipment damage from misuse.

3. Power ON/OFF and Volume control
This is the power switch and volume control knob.

4. Audio Format LED (kHz)

The LED colour scheme indicates the audio format and sampling

frequency received by UNO from the music source.

LED

Mode

Green

PCM 44.1/48/88.2/96kHz

Yellow

PCM 176.4/192/352.8/384kHz

Cyan

DSD 64/128

Blue

DSD 256

Magenta

MQA

5. S-Balanced 3.5mm headphone output
Connect 3.5mm stereo headphones. Compatible with both TRS and TRRS confiurations.

7

8

7. RCA analogue Line output
Connect analogue RCA interconnects to an amplifier.
8. USB-C audio and power input
This is a USB-C input. It connects UNO to the computer or phone audio source and can also be powered by it.
Plays up to 32-bit 384kHz PCM, DSD256 and is an MQA renderer.
Note: For use with PC it is necessary to download drivers.
Tip: For the required driver and all the latest firmware updates please visit our website: https://ifi-audio.com/download-hub/

Specification

Digital Input:

USB-C

Formats:

DSD 256 /11.3MHz

DXD 384kHz

PCM 384kHz

MQA

DAC:

Bit-Perfect DSD & DXD DAC by ESS

Line Section

Output:

2V max.

Output Impedance:

<100

SNR:

119dBA

DNR:

115dB @ 0dBFS

THD+N:

0.03% @ 0dBFS

Headphone Section

Output:

2.6V / 3.5V max. at 32  / 300 

Output Power:

211mW @ 32; 39mW @ 300

Output Impedance:

<1

SNR:

113dBA

DNR:

110dB @ 0dBFS

THD+N:

0.02% (1.27V @ 16)

Channel separation:

80dB (1kHz/600)

Frequency Response:

10-80kHz(-0.5dB)

Power supply requirement: USB-C 5V/0.5A

Power consumption:

No Signal ~0.8W

Max Signal ~1.5W

Dimensions:

88 x 81 x 26 mm (3.5" x 2.8" x 1.0")

Net Weight:

92 g (0.2 lbs)

Limited Warranty:

12 months*

*12 months typical or as permitted/required by local reseller laws.

**Specifications are subject to change without notice.

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6. EQ mode LED
The LED colour scheme indicates the UNO's EQ mode, please see item 1.

ifi-audio.com

Ver1.1



References

Adobe PDF library 15.00 Adobe Illustrator 24.0 (Windows)