Frequency Response
Mic Input to Line Output (Gain @ unity):
	@48 kHz +0, –3 dB, 10 Hz to 24 kHz @96 kHz +0, –3 dB, 10 Hz to 48 kHz @192 kHz +0, –3 dB, 10 Hz to 96 kHz
Mic Input to Digital Output (S/PDIF, 192 kHz sample rate):
	+0, –3 dB, 10 Hz to 96 kHz

Distortion (THD & IMD)
Mic Input to Line Output (@ +4 dBu output):
	THD+N: < 0.003%, 20 Hz to 20 kHz BW 1 kHz input @ +4 dBu, preamp at unity gain
Mic Input to Digital Output (S/PDIF, 48 kHz sample rate):
	THD+N: < 0.001%, 20 Hz to 20 kHz BW 10mV rms input, gain at –1 dB FS output

Phantom Power
	+48 VDC

Rated Output
Line:
	+4 dBu
Maximum Rated Output:
	+24 dBu @ Balanced Line-Level Outputs

Input Impedance
Mic Input:
	2.4 kΩ balanced
Inst Input:
	1 MΩ
Line:
	20 kΩ balanced, 10 kΩ unbalanced

Output Impedance
Line:
	100 Ω balanced

Signal Level LEDs
	–40 dB, –20 dB, –10 dB (normal operating level), OL = 22 dBu

Sample Frequency Selections
	44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Analog Input Connectors
	Four balanced XLR/TRS mic/line inputs Four balanced 1/4" TRS line inputs Two 1/4" TS high-impedance instrument inputs

Analog Output Connectors
	Eight balanced 1/4" TRS line-level outputs

Digital Input Connectors
	One BNC connector for external word clock input One RCA connector for S/PDIF input One 5-pin DIN for MIDI input Two 6-pin FireWire input/output

Dynamic Range
	>107 dB (Mic In to Line Out)

Noise
Signal-to-Noise:
	>87 dB (ref. +4 dBu, Mic In to Line Out, Gain @ unity)
Equivalent Input Noise (E.I.N.), 20 Hz to 20 kHz Bandwidth, 150Ω source impedance:
	–129 dBu @ +60 dB gain

Common Mode Rejection Ratio (CMRR)
Mic In:
	>60 dB @ 1 kHz, Gain @ maximum

Crosstalk
Mic Input to Line Output:
	< –100 dB @ 1 kHz, +10 dBu signal on adjacent input, 150Ω source impedance

Input Gain Control Range
Mic In:
	0 dB to +60 dB
Line In:
	–20 dB to + 40 dB

Digital Output Connectors
	One BNC connector for external word clock output One RCA connector for S/PDIF output One 5-pin DIN for MIDI output

DSP
	TMS320C6713 Floating-Point Digital Signal Processor operating at 225 MHz, delivering up to 1350 million floating-point operations per second (MFLOPS), 1800 million instructions per second (MIPS), and 450 million multiply-accumulate operations per second (MMACS)

AC Power Requirements
Power Consumption:
	20 watts
Universal AC Power Supply:
	100 VAC – 240 VAC, 50-60 Hz

Physical Dimensions and Weight
Height:
	1.75 in/44 mm
Width:
	17.50 in/445 mm (main body of unit) 19.00 in/483 mm (with rack ears)
Depth:
	7.63 in/194 mm (including front knobs and rear BNC jack)
Weight:
	5.6 lb/2.5 kg