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Owner’s Manual
Owner’s Manual
Appendix C: Technical Info
continued
Specifications
Frequency Response (0 Hz to 0 kHz) :
Mic input to any output: +0/–0.5 dB
Line/CD input to any output: +0/–0.5 dB
Phono input to any output: ±0.5 dB RIAA EQ curve
FireWire output channel 1 or 2 to the
FireWire input of the opposite channel:+0/–1 dB
Distortion (THD+N):
Main output, 20 Hz to 20 kHz
Mic Input, –20 dBu in, +30 dB gain, +10 dBu out:
Better than 0.007%
Line/CD input at unity gain: Better than 0.015%
Phono input, –30 dBu in, 0 dBu out: Better than 0.020%
FireWire direct out, looped back to same
channel’s FireWire input, unity gain: Better than 0.025%
Phones output, 20 Hz to 20 kHz, +4 dBu input signal
Line input @ 0 dB Gain: Better than 0.015%
Common Mode Rejection Ratio (CMRR):
Mic input, maximum gain, 1 kHz: Better than 60 dB
Crosstalk (1 kHz, 0 Hz to 0 kHz):
Signal placed on any channel, transform switch disengaged, op-
posite channel measured at main outs, channels at unity gain:
Better than –70 dBu
Signal placed on any channel, out and in over FireWire, trans-
form switch disengaged, opposite channel measured at main
outs, channels at unity gain: Better than –80 dBu
Noise Characteristics:
Equivalent Input Noise (E.I.N.), 20 Hz to 20 kHz, max gain:
Mic input, 150 Ω source: Better than –125 dBu
Phono input, 500 Ω/500 mH source: Better than 0.3 μV
Signal to Noise Ratio:
Main out at unity, 20 Hz to 20 kHz, ref +4 dBu,
all channel gain knobs at minimum: Better than –92 dB
Main out at unity, 20 Hz to 20 kHz, ref +4 dBu,
all channel gain knobs at unity: Better than –88 dB
Main out at unity, 20 Hz to 20 kHz, ref +4 dBu, FireWire
inputs selected at both channels and at unity:
Better than –82 dB
Maximum Input Levels (rated at 1% THD):
Mic input, preamp gain at minimum: +9.5 dBu
Line/CD inputs, preamp gain 0 dB: +22.5 dBu
Aux input: +22.5 dBu
Phono input: 185 mV @ 1kHz
Input/Output Characteristics:
Input gain control range:
Mic input: +3 dB to +50 dB,
(+10 dB fixed gain, effective range: +13 dB to +60 dB)
PGM input: Off to +13 dB
Aux return: Off to +13 dB
Output gain control range:
Main output: Off to +12 dB
Aux output: Off to +12 dB
Booth output: Off to 0 dB
Input Impedance:
Mic input: 2.4 kΩ balanced
Line/CD input: 20 k
Ω balanced
FX return: 20 k
Ω balanced
Phono input: 47.5 k
Ω shunted with
200 pF
Maximum Output Levels:
XLR main output: +22.5 dBu
RCA main output: +22.5 dBu
Booth output: +22.5 dBu
Aux send: +22.5 dBu
Phones: 2.94 Vrms into 32
Ω
(270 mW)
Output Impedance:
Main XLR/RCA output: 150 Ω
Booth output: 150
Ω
Aux send: 150
Ω
Phones: 25
Ω
Equalization
Mic channel
Low: ±15 dB @ 80 Hz
Mid: ±15 dB @ 2.5 kHz
High: ±15 dB @ 12 kHz
PGM channel
Low: +10/–inf dB @ 300 Hz
Mid: +10/–inf dB @ 1 kHz
High: +10/–inf dB @ 4 kHz
FireWire:
Sample rates available: 44.1 kHz, 48 kHz,
88.2 kHz, and 96 kHz
Buffer Size: Adjustable from 2 ms to
20 mS in steps of 1 ms
Resolution: 24-bit
VU Meters
12-segment pre-fader PGM meters
12-segment pre-fader main mix meters
OL (+20), +15, +10, +6, +3, 0, –2, –4, –7, –10, –20, –30
Mic input signal present LED (sensitivity):
–20 dBu
Mic input overload LED: +18 dBu
AC Power Requirements:
Power consumption: 25 watts
Universal AC Power Supply: 100 VAC – 240 VAC,
50–60 Hz