• FireWire connectivity
• 8 analog inputs, 8 analog outputs
• 4 mic pres with individual gain and high-pass filter; 48V phantom power enabled on channel pairs
• 8 channels of ADAT optical I/O or 2 channels of S/PDIF I/O
• Outputs 1 & 2 mirrored on 1/4" TRS monitor output (with dedicated volume control) and RCA-based -10 dBV fixed output
• MIDI I/O: 1 IN port, 2 OUT ports (16 channels IN/32 channels OUT)
• 24-bit/96 kHz A/D and D/A converters
• Alternate Source Input for direct monitoring of -10 dBV audio equipment (tape players, CD players, etc.)

A/D

• Sample rate: 44.1, 48, 88.2, 96 kHz
• Max Input:
• Inputs 1-4 (mic): +3 dBu
• Inputs 1-4 (line): +18 dBu
• Inputs 5-8 (line/+4 mode): +18 dBu
• Gain Range:
• Inputs 1-4: Mic Setting: +15 - +65 dB; Line/DI Setting: +0 - +50 dB
• Inputs 5-8—fixed +4 dBu or —10 dBV, -14 dB headroom
• Mic E.I.N (unweighted):
• Inputs 1-4: —126 dBu @ 65 dB gain, 150 ohm source, 20 Hz—20 kHz
• THD+N:
• Inputs 1-4 (mic): 0.004%, 62 dB gain see 1,3
• Inputs 1-4 (line): 0.004%, +17 dBu signal (minimum gain) see 1,3
• Inputs 5-6: 0.002% @ +17 dBu input level
• Inputs 7-8: 0.003% @ +17 dBu input level
• Dynamic range: see 1,2
• Inputs 1-4: >101 dB (A-weighted), 98 dB (unweighted)
• Inputs 5-8: >108 dB (A-weighted), 105 dB (unweighted) see 5
• Alt Source Inputs: >99 dB (A-weighted), 97 dB (unweighted)
• Frequency Response:
• +0.15 / -0.5 dB, 20 Hz—20 kHz
• Input Impedance:
• Inputs 1-4 (XLR): 2 kohm
• Inputs 1-4 (1/4"): 10 Mohm

D/A

• Sample Rate: 44.1, 48, 88.2, 96 kHz
• Max Output:
• Main (1-2), Monitor, and Outputs (3-8): +18 dBu
• Alt. —10 dBV Outputs: +4 dBV
• Headphone Outputs: +15 dBu, 150 ohm load
• THD+N: see 1,3,4
• Main Outputs:
• Monitor Outputs:
• Outputs 3-8:
• Alt. —10 dBV Outputs:
• Dynamic range: see 1,3,4
• Main Outputs: 114 dB (A-weighted), 112 dB (unweighted)
• Monitor Outputs: 112 dB (A-weighted), 110 dB (unweighted)
• Outputs 3-8: 114 dB (A-weighted), 112 dB (unweighted)
• Alt. —10 dBV Outputs: 98 dB (A-weighted), 95 dB (unweighted)
• Frequency Response:
• +0.15 / -0.5 dB, 20 Hz—20 kHz
• Output Impedance:
• 50 ohms
• 1 - Measurement made using balanced connectors
• 2 - ADC measured -60 dBFS method with a gain setting such that +18 dBu = 0 dBFS at S/PDIF output
• 3 - Measured relative to level at 1 kHz
• 4 - Measured with digital input at -60 dBFS @ 1 kHz
• 5 - Measured using "+4" setting