Zoom UAC-8 USB 3.0 Audio Interface

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 44.1kHz or 48kHz, the UAC-8 processes the signal at high resolution 176.4kHz or 192kHz.

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.

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.

• INPUTS 1–8
• Connectors:  XLR/TRS combo jacks (XLR: 2 hot, TRS: TIP hot)
• Input gain: 0–60 dB (1 dB steps)
• Input impedance: 5 kΩ, 1 MΩ (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

ANALOG OUTPUTS

MASTER OUTPUTS

• L/R Connectors:  TRS jacks (balanced)
• ANALOG OUTPUTS: LINE OUTPUTS 1-8
• Maximum output level:  +14 dBu (at 0 dBFS)
• Output impedance:  150 Ω

ANALOG OUTPUTS

• PHONES 1/2
• Connectors: Standard stereo phone jacks, 20 mW × 2 (into 32 Ω load)
• Maximum output level:  +10 dBu
• Output impedance:  33 Ω

DIGITAL IN/OUT: ADAT OPTICAL
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

DIGITAL IN/OUT: S/PDIF

• Connectors:  RCA (coaxial)
• Supported sampling frequencies:  44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz

DIGITAL IN/OUT: WORD CLOCK

• Connectors:  BNC
• Supported sampling frequencies:  44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
• Output impedance: 75 Ω

OTHER

• 44.1 kHz: −1.0 dB, 20 Hz–20 kHz
• 96 kHz: −1.0 dB, 20 Hz–40 kHz
• 192 kHz: −1.0 dB, 20 Hz–60 kHz
• Input conversion noise:  Measured EIN: 125 dB (IHF-A) at 60dB, 150Ω input

• 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:  6.2 in. (D) × 19 in. (W) × 1.8 in. (H), 157.65 mm (D) × 482.6 mm (W) × 46.03 mm (H)
• Weight (main unit only):  4.4 pounds / 2.02 kg
• Note: 0dBm?0.775Vrms

Number of recording and playback channels

• 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)

UAC-8 System Requirements

Windows:

• OS? Windows® 7 SP1 or later / 8 / 8.1 (32bit/64bit)
• CPU: Intel® Core i3 or faster*
• USB: USB 3.0/USB 2.0**

* Operation is not guaranteed with CPUs from Atom, Celeron or Pentium series or CPUs made by AMD.
** Only USB host controllers with Intel Chipsets are supported. Operation is not guaranteed when used with USB hubs or expansion cards.

Mac:

• OS? Mac® OS X 10.8.5 or later
• CPU: Intel® Core i3 or faster
• USB: USB 3.0/USB 2.0*

* Operation is not guaranteed when used with USB hubs or expansion cards.

iPad:

• OS? iOS 7.1 or later

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