Mackie Onyx 1640i Owner's Manual - Page 31

Appendix C: Technical Information

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Appendix C: Technical Information Specifications Noise Characteristics: Equivalent Input Noise (EIN), mic input at insert, 150 Ω source impedance, 20 to 20 kHz: 60 dB (max) gain: 40 dB gain: -129 dBu -128 dBu Output Noise Figure (1/4" Main out, all channels assigned to main, Gain knobs at unity, 20 Hz to 20 kHz): Main Mix knob down, channel Level knobs down: -100 dBu (-104 dB SNR, ref +4dBu) Main Mix knob unity, channel Level knobs down: -93 dBu (-97 dB SNR, ref +4 dBu) Main Mix knob unity, channel Level knobs unity: -91 dBu (-95 dB SNR, ref +4 dBu) FireWire Through (Record + Playback) Dynamic Range: 0 dBu mic input, to DAW, routed back to mixer direct to Control Room, all gain stages unity, 20 Hz to 20 kHz: All sample rates: -105 dB Attenuation and Crosstalk: @1 kHz Main Mix knob down: Channel Alt/Mute switch engaged: Channel Level knob down: -80 dBu -96 dBu -96 dBu Common Mode Rejection Ratio (CMRR): Mic input to insert, max gain, 1 kHz: >70 dB Maximum Input Levels: Mic input, gain at unity (0 dB): Mic input, gain at max (60 dB): Line input, gain at -20 dB: Instrument input, gain at -20 dB: Tape input: Aux return: +21 dBu -38 dBu +30 dBu +21 dBu +21 dBu +21 dBu Maximum Output Levels: All outputs: +21 dBu Frequency Response: Mic input to main output (all gain stages at unity): +0, -1 dB,

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Owner's Manual
31
Specifications
Noise Characteristics:
Equivalent Input Noise (EIN), mic input at insert, 150
Ω
source
impedance, 20 to 20 kHz:
60 dB (max) gain:
-129 dBu
40 dB gain:
-128 dBu
Output Noise Figure (1/4" Main out, all channels assigned to
main, Gain knobs at unity, 20 Hz to 20 kHz):
Main Mix knob down, channel Level knobs down:
-100 dBu (-104 dB SNR,
ref +4dBu)
Main Mix knob unity, channel Level knobs down:
-93 dBu (-97 dB SNR,
ref +4 dBu)
Main Mix knob unity, channel Level knobs unity:
-91 dBu (-95 dB SNR,
ref +4 dBu)
FireWire Through (Record + Playback) Dynamic Range:
0 dBu mic input, to DAW, routed back to mixer direct to Control
Room, all gain stages unity, 20 Hz to 20 kHz:
All sample rates:
-105 dB
Frequency Response:
Mic input to main output (all gain stages at unity):
+0, -1 dB, <10 Hz to 80 kHz
+0, -3 dB, <10 Hz to >100 kHz
Channel line input to any output (all gain stages unity):
+0/-1 dB, 20 Hz to 20 kHz
FireWire in and out (mic input to FireWire send, returned to
Control Room, all gain stages at unity):
44.1 kHz sample rate:
+/-0.5 dB,
20 Hz to 20 kHz
-3 dB at 21 kHz
96 kHz sample rate:
+/-0.5 dB,
20 Hz to 20 kHz
-3 dB at 45 kHz
Distortion (THD+N):
20 Hz to 20 kHz, 20 Hz to 80 kHz bandwidth
Mic input at insert
(+4 dBu in, 0 dB gain, +4 dBu out):
0.005%
Mic input at insert
(-10 dBu in, +20 dB gain, 20 Hz to 20 kHz bandwidth):
0.0007%
Stereo channel line input to any output
(+4 dBu in, all gain stages at unity +4 dBu out): 0.005%
FireWire in and out (+4 dBu in, mic input to FireWire send,
returned to Control Room, all gain stages at unity):
44.1 kHz sample rate:
0.02%, 10 Hz to 20 kHz
96 kHz sample rate:
0.02%, 10 Hz to 10 kHz
0.05%, 10 kHz to 47 kHz
Attenuation and Crosstalk:
@1 kHz
Main Mix knob down:
-80 dBu
Channel Alt/Mute switch engaged:
-96 dBu
Channel Level knob down:
-96 dBu
Common Mode Rejection Ratio (CMRR):
Mic input to insert, max gain, 1 kHz:
>70 dB
Maximum Input Levels:
Mic input, gain at unity (0 dB):
+21 dBu
Mic input, gain at max (60 dB):
–38 dBu
Line input, gain at -20 dB:
+30 dBu
Instrument input, gain at -20 dB:
+21 dBu
Tape input:
+21 dBu
Aux return:
+21 dBu
Maximum Output Levels:
All outputs:
+21 dBu
Equalization
Low:
±15 dB at 80 Hz
Lo-Mid frequency:
100 Hz to 2 kHz
Lo-Mid gain:
±15 dB
Hi-Mid frequency:
400 Hz to 8 kHz
Hi-Mid gain:
±15 dB
High:
±15 dB at 12 kHz
FireWire
Sample Rates Available:
44.1 kHz, 48 kHz,
88.2 kHz, 96 kHz
Buffer Size:
32 (44.1 kHz and 48 kHz
only), 64, 128, 256, 512,
1024, 2048 samples
Resolution:
24-bit
Meters
4-segment pre-fader channel meters:
OL (+18 dBu), +10, 0,
-20 dBu
12-segment pre-fader Control Room meters:
OL (+20 dBu), +15, +10,
+6, +3, 0, -2, -4, -7, -10,
-20, -30 (0 dB = 0 dBu)
Appendix C: Technical Information