Zoom UAC-8 USB Audio Interface

With eight built-in preamps and a total of 18 inputs and 20 outputs, the Zoom UAC-8 is also USB 3.0 SuperSpeed capable for fast, low-latency recording.
There's a whole new world of possibilities for Mac and PC Creators --high-speed, high-resolution, and low-latency. Upgrade your rig with the rack-mountable UAC-8, and add 18 inputs and 20 outputs to your USB 3.0-equipped Mac or Windows computer--even your iPad.* Plug in a microphone, line-level device, or instrument and start bringing your ideas to life, or take the UAC-8 onstage to enable high-res audio playback, all the way up to 24-bit/192 kHz.

* Apple Camera Connection kit or Lightning to USB Camera Adapter required

USB 3.0 SuperSpeed

The USB 3.0 SuperSpeed transfer protocol used by the UAC-8, with a speed of 2.0 msroundtrip @ 96 kHz/32 samples, is ten times faster than USB 2.0 and six times faster than FireWire 800. That not only ensures low latency, it provides a data stream that's unaffected by computer jitter (slight variations in timing), so there's no need to connect an external master clock source.


The UAC-8 provides a wide variety of both analog and digital connectors. 8 front panel combo XLR/TRS inputs accept mic- and line-level signals, and you can even plug instruments directly into Inputs 1 and 2. Dedicated input gain controls and Clip LEDs make it easy to set optimum input levels, and a Phantom Power switch enables the use of condenser microphones.


The UAC-8 has dual balanced analog TRS output jacks for connection to monitors, and there are read more also 8 discrete balanced TRS analog line outputs for multichannel monitoring or connection to external effects devices. A large front-panel Output knob offers fast control over output level, and there are two independent 1/4" stereo headphone jacks, each with its own dedicated volume control, for private monitoring.

Digital I/O

8 ADAT and stereo S/PDIF digital inputs/outputs allow for the connection ofupto10 external channels, and built-in Word Clock enables easy integration into any system. In addition, MIDI In and Out is provided to allow interfacing with devices such as electronic keyboards and drum machines.

Upsampling, Standalone Mode

The UAC-8 uses high-end components such as the AKM AK5388 analog-to-digital converter and AKM AK4413 digital-to-analog converter. In addition, the UAC-8 performs 4-times upsampling during both analog-to-digital and digital-to-analog conversion. In other words, when the sampling frequency is set to 44.1 kHz or48 kHz, the UAC-8 processes the signal at high resolution 176.4 kHz or 192 kHz.

For A/D conversion, this means less aliasing noise; for D/A conversion, this means increased clarity and fidelity.

In standalone mode, the UAC-8 can be used as an 8-channel mic preamp and analog-to-digital or digital-to-analog converter without being connected to a computer.

Extend Your Capabilities with Software

UAC-8 MixEfx is a free Macintosh and Windows compatible application designed specially by Zoom for the UAC-8.It provides a comprehensive onscreen mixer, with independent level, phase reversal, and panning control for each channel. UAC-8 MixEfx also allows you to freely route all inputs to all outputs and to create custom mixes. In addition, MixEfx features effects like reverb and echo, and complete mixes can be stored in three different memory slots, allowing instant recall.


- 18-in/20-out USB 3.0 SuperSpeed audio interface
- Standalone mode allows use as an 8-channel mic preamp and A/D or D/A converter without connection to a computer
- Support for recording and playback of up to 24-bit/192 kHz high-resolution audio
- Low latency audio streaming
- 8 combo balanced XLR/TRS analog input connectors accept both mic and line-level signal
- High-performance mic preamps with up to +60dB of amplification
- Hi-Z switches allow direct connection of electric guitar or bass (INPUT1, INPUT2)
- Independent gain controls and clip LEDs for each input
- Switchable +48V phantom power (INPUTS 1-4, INPUTS 5-8)
- 10 balanced TRS output jacks for connection to mixers, amplifiers, self-powered speakers, headphones, or effects devices
- Dual front-panel 1/4" headphone outputs with dedicated volume controls
- Large knob output volume control
- 4x upsampling during A/D and D/A conversion for reduced noise and enhanced fidelity
- Asynchronous transfer system unaffected by computer jitter
- S/PDIF IN/OUT: 2IN / 2OUT, upto24-bit/192 kHz
- ADAT Optical IN/OUT: 2 IN / 2 OUT at 192/176.4 kHz (S/MUX4 compatible), 4 IN/4 OUT at96/88.2kHz (S/MUX compatible), 8 IN / 8 OUT at 48/44.1 kHz
- Word Clock in/out
- Clock source indicator
- MIDI in/out
- Rack-mountable (1U space)
- Robust metal housing
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.
read less
- Connectors: XLR/TRS combo jacks (XLR: 2 hot, TRS: TIP hot)
- Input Gain: 0-60 dB (1 dB steps)
- Input Impedance: 5 kOhm, 1 MOhm (When IN1/IN2 Hi-Z on)
- Maximum Input Level: +13 dBu (XLR at 0 dBFS), +21 dBu (TRS at 0 dBFS)
- Phantom power: +48 V
- L/R Connectors: TRS jacks (balanced)
- Maximum output level: +14 dBu (at 0 dBFS)
- Output Impedance: 150 Ohm
- Connectors: Standard stereo phone jacks, 20 mW x 2 (into 32 Ohm load)
- Maximum output level: +10 dBu
- Output Impedance: 33 Ohm
- Connectors:
- ADAT Optical (lightpipe)
- 8 IN/OUT: 44.1 kHz/48 kHz
- 4 IN/OUT: 88.2kHz/96kHz, S/MUX compatible
- 2 IN/OUT: 176.4kHz/192kHz, S/MUX4 compatible
- Connectors: RCA (coaxial)
- Supported sampling frequencies: 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
- Connectors: BNC
- Supported sampling frequencies: 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
- Output impedance: 75 Ohm
- Frequency characteristics:
- 44.1 kHz: \0x22121.0 dB, 20 Hz-20 kHz
- 96 kHz: \0x22121.0 dB, 20 Hz-40 kHz
- 192 kHz: \0x22121.0 dB, 20 Hz-60 kHz
- Input conversion noise: Measured EIN: 125 dB (IHF-A) at 60dB, 150Ohm input
- Dynamic range:
- AD: 120 dB typical (IHF-A)
- DA: 120 dB typical (IHF-A)
- Sampling frequencies: 192 kHz, 176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz
- Bit depth: 24-bit
- Interface: USB 3.0 / 2.0
- MIDI IN/OUT: 5-pin DIN jacks
- Power supply: AD-19 DC12V 2A AC adapter
- External dimensions (D x W x H): 6.2 x 19 x 1.8" / 157.65 x 482.6 x 46.03 mm
- Weight (main unit only): 4.4 pounds / 2.02 kg
- Audio Interface and Standalone Modes: At 44.1 kHz and 48 kHz:
- Recording: 18 channels (ANALOG: 8, S/PDIF: 2, ADAT Optical: 8)
- Playback: 20 channels (ANALOG: 10, S/PDIF: 2, ADAT OPTICAL: 8)
- Audio Interface and Standalone Modes: At 88.2 kHz and 96 kHz:
- Recording: 14 channels (ANALOG: 8, S/PDIF: 2, ADAT Optical: 4)
- Playback: 16 channels (ANALOG: 10, S/PDIF: 2, ADAT OPTICAL: 4)
- Audio Interface and Standalone Modes: At 176.4 kHz and 192 kHz:
- Recording: 12 channels (ANALOG: 8, S/PDIF: 2, ADAT OPTICAL: 2)
- Playback: 14 channels (ANALOG: 10, S/PDIF: 2, ADAT OPTICAL: 2)
- Class Compliant Mode: At 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz:
- Recording: 8 channels (ANALOG: 8)
- Playback: 10 channels (ANALOG: 10)
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 6.5 lbs
Shipping Dimensions: 23 x 8 x 4 in
Manufacturer Part Number (MPN): ZUAC8
If you have additional warranty questions, please contact the manufacturer at 631-542-5270