Zoom UAC8 USB 3.0 Audio Interface

8‐in/20‐out SuperSpeed USB 3.0 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 +60 dB 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, up to 24‐bit/192 kHz 
ADAT Optical IN/OUT: 2 IN / 2 OUT at 192/176.4 kHz (S/MUX4 compatible), 4 IN/4 OUT at 96/88.2 kHz (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
Works with all USB 3.0-equipped Mac and Windows computers and Apple iPad*

ANALOG INPUTS: 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 OPTICAL
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
FREQUENCY CHARACTERISTICS :
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
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:
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
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)