The super professional USB stereo interface with MIC 


Don’t get fooled by its apparently complex name: the UAX220-Mic is a professional stereo USB Audio interface designed for the most demanding broadcasting applications that require high-quality audio acquisition of microphone level signals. We made it USB audio compliant to be swiftly used with any kind of computer and third-party software applications without the burden of installing a dedicated driver. Complex name, yet simply and highly efficient.

UAX220-Mic offers 2/2 balanced analog high-quality I/Os. We have added professional-grade mic preamps and switchable +48V phantom power on each input to make UAX220-Mic the most efficient Pro Audio interface for portable use. Its compact and sleek design has all of Digigram’s leading edge experience in audio performance plus the ridiculously simple standard USB Audio to broadcast within a blink.

Plug and play

No driver, no burden. Straight to the point

Broadcast Quality

Hear that pristine sound? Yes, there is a direct connection to professional audio equipment (XLR, +22dBu max input level)

Low latency

Monitoring: Zero-latency hardware monitoring  mixed with playback to the line and headphones outputs

Key features

USB audio class 2.0: Supported under Windows, Mac OS X, and Linux

2 balanced analog mono mic/line inputs

2 balanced analog mono Outputs

Switchable zero-latency direct hardware monitoring (mixed with the playback)


Incredibly easy to use

USB self powered and no driver to install

Pro to pro

direct connection to professional audio equipment (XLR, +22dBu max input level)

Super versatile to work with

pick your favourite Windows, Linux, or Mac OSX

Cost effective

professional grade product


Supported OS / Environments

Supported operating systems:

  • Windows, 
  • Mac OS X, 
  • Linux

Management: Depending on the host operating system’s implementation of the USB

Audio specification (Compatible Drivers): 

  • DirectSound, 
  • Core Audio, 
  • ALSA

Additional management: Digigram np SDK through Virtual PCX Third-party Asio driver


Bus/Format: USB 1.1, compatible 2.0

Size: 144 mm X 87 mm X 34 mm, Integrated

USB cable: 1.5 m, 

Integrated audio cable: 0.75 m

Power consumption: 500 mA max

Operating: temp / humidity (non-condensing): 0°C / +50°C • 5% / 90%

Storage: temp / humidity (non-condensing): -5°C / +70°C • 0% / 95%


External connectors:

  • Standard USB type A for connection with computer
  • 2 Neutrik™ XLR-3 female for Mic/line inputs
  • 2 Neutrik™ XLR-3 male for line outputs
  • Locking ¼” Neutrik™ female cable jack for headphones output
Audio I/Os


Analog line inputs (mono): 2 balanced mic/line with:

  • professional high-quality preamps
  • switchable 48 V phantom power supply (mono)

Maximum input level/impedance: +10 dBu / >10 kOhms

Maximum sensitivity: -45 dB


Analog line outputs (mono): 2 servo-balanced

Maximum output level / impedance: +10 dBu / <100 Ohms

Programmable output gain: from -60 dBr to +10 dBr, by steps of 1 dB

Other outputs: 1 stereo headphones output with dedicated output stage and level adjustment knob 

Maximum output power/minimum load: 2*40 mW / 32 Ohms

Audio Specifications

Sampling frequencies available: 32 / 44.1 / 48 kHz

A/D and D/A converter resolution: 24 bits

Supported audio formats: PCM (8, 16 et 24 bits, full-duplex)

Operating modes: Either selected by application or user-selectable at a fixed resolution  (modes selected via UAX Manager application)

Monitoring: Zero latency hardware monitoring mixed with playback to the line and headphones outputs

Monitoring control: On/off and mono/stereo push buttons

Analog audio performance

Frequency response (record + play): 20 Hz – 20 kHz: ±0.2 dB

Channel phase difference: 20/20kHz: <0.2°/2°

Dynamic range (A-weighted):

  • Input: >100 dB
  • Output: >104 dB

THD + noise 1 kHz at –1 dBfs:

  • Input: <-93 dB
  • – Output: <-97 dB
  • Loop: <-92 dB

Crosstalk (Analog in or out):

  • 1 kHz: <-110 dB
  • 15 kHz: <-95 dB

Number of mic inputs: 2 analog mono with switchable 48V phantom power supply

Programmable mic gain:+20 to +55 dB by knob with switchable -20 dB input attenuation

48 V power supply: 2*5 mA max

Equivalent Input Noise, A/D-D/A at 48kHz, G=+50dB: <-125 dBu



    Where can I find the UAX220 driver ?

    The UAX220 driver is embedded in Windows OS. The card is automatically recognized.

    Can I use the UAX220 on MacOS

    Yes, the USB audio card is detected as Core Audio device and can be used with Mac computers.