21
Owner’s Manual
Owner’
s Manual
Appendix C: Technical Info
continued
Specifications
Frequency Response (20 Hz to 20 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 c0/–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, 20 Hz to 20 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 k
Ω
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
