Frequency Response
Mic Input to Control Room Output (Gain @ unity):
@48 kHz +0, –3 dB, 10 Hz to 23 kHz
@96 kHz +0, –3 dB, 10 Hz to 45 kHz
@192 kHz+0, –3 dB, 10 Hz to 75 kHz
Mic Input to Digital Output
(AES, 192 kHz sample rate, Gain @ unity):
+0, –1 dB, 10 Hz to 86 kHz
Mic Input to Digital Output
(AES, 192 kHz sample rate, Gain @ max):
+0, –3 dB, 15 Hz to 70 kHz
Hi-Z Instr Input to Digital Output
(AES, 192 kHz sample rate, Gain @ max):
+0, –1 dB, 10 Hz to 86 kHz
ADAT Input to ADAT Output (48 kHz sample rate):
+0, –0.01 dB, 17 Hz to 23 kHz
Digital AES Input to Headphones Output
(192 kHz sample rate):
+0, –1 dB, 10 Hz to 55 kHz
Distortion (THD + N)
Mic Input to Line Output (@ +4 dBu output):
THD+N: < 0.006%, 10 Hz to 22 kHz BW,
1 kHz input @ +12 dBu, preamp at unity gain
Mic/Line Input to Digital Output (AES, 48 kHz sample rate):
THD+N: < 0.004% @ 1 kHz, +12 dBu input,
gain at unity, 150Ω source
Hi-Z (Instr) Input to Digital Output (AES, 48 kHz sample rate):
THD+N: < 0.01% @ 1 kHz, 100 mV rms input,
gain at –5 dBFS, 150Ω source
Digital Input (AES) to Analog Outs, (48 kHz sample rate):
THD+N: < 0.004%, 10 Hz-22 kHz BW,
–5 dBFS input, +12 dBu output
Dynamic Range
113 dB (Mic/Line In to Digital AES Out, A-weighted)
101 dB (Hi-Z Instr In to Digital AES Out, A-weighted)
103 dB (Digital AES In to Headphones Out, A-weighted)
107 dB (Digital AES In to Control Room/Line Outs,A-weighted)
Noise
Signal-to-Noise:
>81 dB (ref. +4 dBu, Mic In to Line Out,
150Ω source, 10 Hz-22 kHz BW, Gain @ unity,
48 kHz sample rate)
>82 dB (ref. +4 dBu, Mic In to Control Room Out,
150Ω source, 10 Hz-22 kHz BW, Gain @ unity,
48 kHz sample rate)
>90 dB (ref. +4 dBu, Mic In to Digital AES Out,
150Ω source, 10 Hz-22 kHz BW, Gain @ unity,
48 kHz sample rate)
>88 dB (Digital AES In to Analog Out, 10 Hz-22 kHz BW,
output level set to +4 dBu, 48 kHz sample rate)
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Equivalent Input Noise (E.I.N.), 20 Hz to 20 kHz BW,
150Ω source impedance:
–129 dBu @ +60 dB gain (Mic In to Control Room Out)
Residual Noise:
–113 dBFS (Digital AES Out, 10 Hz-22 kHz BW,
48 kHz sample rate)
< –90 dBu (Control Room Out, Gain @ max,
10 Hz-22 kHz BW)
< –86 dBu (Headphones Out, Gain set to 0 dBu out
into 600Ω, 10 Hz-22 kHz BW, 48 kHz sample rate)
Common Mode Rejection Ratio (CMRR)
Mic In: >60 dB @ 1 kHz, Gain @ maximum
Crosstalk
Mic Input to Control Room Output:
< –88 dB @ 1 kHz, +10 dBu signal on adjacent input,
unity gain, 150Ω source impedance
Mic Input to Digital AES Output:
< –76 dB @ 1 kHz, –50 dBu signal on adjacent input,
maximum gain, 150Ω source impedance
Mic Input to Digital AES Output:
< –110 dB @ 1 kHz, +10 dBu signal on adjacent input,
unity gain, 150Ω source impedance
Input Gain Control Range
Mic In: 0 dB to +60 dB
Line In: –20 dB to + 40 dB
Phantom Power
+48 VDC
Rated Output
Line: +4 dBu
Maximum Rated Output:
+21 dBu @ balanced line-level outputs
Input Impedance
Mic Input: 2.4 kΩ balanced
Inst Input: 1 MΩ
Line: 30 kΩ balanced, 15 kΩ unbalanced
Output Impedance
Line: 150Ω balanced
Signal Level LEDs
–40 dB, –20 dB, –10 dB (normal operating level),
OL = 22 dBu
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Sample Frequency Selections
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz
Analog Input Connectors
12 balanced XLR/TRS mic/line inputs
Two unbalanced 1/4" TS line/high-impedance
instrument inputs
One balanced XLR talkback mic input
Two balanced 1/4" TRS line-level insert returns
Analog Output Connectors
Eight balanced line-level outputs on DB-25
Four balanced 1/4" TRS control room line-level outputs
Four unbalanced 1/4" TRS stereo headphone outputs
Two balanced 1/4" TRS line-level insert sends
Digital Input Connectors
One BNC connector for external word clock input
One RCA connector for S/PDIF input
One XLR-F connector for AES/EBU input
Two 5-pin DIN connectors for MIDI input
Two Toslink optical connectors for ADAT input
Two 6-pin FireWire input/output
Digital Output Connectors
One BNC connector for external word clock output
One RCA connector for S/PDIF output
One XLR-M connector for AES/EBU output
Two 5-pin DIN connectors for MIDI output
Two Toslink optical connectors for ADAT 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: 45 watts
Universal AC Power Supply:
100 VAC – 240 VAC, 50-60 Hz
Physical Dimensions and Weight
Height: 3.50 in/89 mm
Width: 17.5 in/445 mm (main body of unit)
19.0 in/483 mm (with rack ears)
Depth: 14.5 in/368 mm (including front knobs and
rear BNC jack)
Weight: 13.8 lb/6.3 kg
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