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ONYX 1620
ONYX 1620
Appendix C: Technical Info
Maximum Input Levels
Mic Input: +21 dBu, Gain @ unity
Inst Input: +21 dBu, Gain @ –20 dB
Mono Channel Line Input:
+30 dBu, Gain @ –20 dB
Stereo Channel Line Input:
+21 dBu, Gain @ –20 dB
Tape Input: +15 dBu
Aux Return: +21 dBu
Maximum Voltage Gain
Mic Input to:
Main Output: 80 dB
Tape Output: 80 dB
Aux Sends: 86 dB
Control Rm Output:
90 dB
Alt 3/4 Output: 64 dB
Phones Output: 90 dB
Inst Input to:
Main Output: 60 dB
Tape Output: 60 dB
Aux Sends: 66 dB
Control Rm Output:
70 dB
Alt 3/4 Output: 44 dB
Phones Output: 70 dB
Stereo Line Input to:
Main Output: 40 dB
Tape Output: 40 dB
Aux Sends: 46 dB
Control Rm Output:
50 dB
Alt 3/4 Output: 24 dB
Phones Output: 50 dB
Tape Input to:
Main Output: 26 dB
Tape Output: 26 dB
Control Rm Output:
16 dB
Phones Output: 16 dB
Aux Return to:
Main Output: 20 dB
Tape Output: 20 dB
Aux Send: 32 dB
Control Rm Output:
30 dB
Phones Output: 30 dB
Input Impedance
Mic Input: 2.4 kΩ, balanced
Inst Input: 1 MΩ
Mono Channel Line Input: 30 kΩ balanced;
15 kΩ unbalanced
Stereo Channel Line Input: 20 kΩ balanced;
10 kΩ unbalanced
Stereo Aux Returns: 20 kΩ balanced;
10 kΩ unbalanced
Tape In: 20 kΩ, unbalanced
Onyx 1620 Specifi cations
Frequency Response
Mic Input to Main Output (Gain @ Unity)
+0, –1 dB, 20 Hz to 50 kHz
+0, –3 dB, <10 Hz to >100 kHz
Distortion (THD & IMD)
Mic Input to Main Output (@ +4 dBu)
THD: < 0.004%, 20 Hz to 20 kHz
SMPTE IMD: < 0.005% (7 kHz/60 Hz, 4:1)
Dynamic Range
>110 dB (Mic In to Main Out)
Noise Floor
(20 Hz to 20 kHz Bandwidth, 150Ω source impedance)
Equivalent Input Noise (E.I.N.)
–129.5 dBu @ +60 dB gain
Mic Output Noise:
Recording Output: –100 dBu (minimum gain)
Residual Output Noise:
Main Out: –102 dBu (Channel and Main Mix levels off)
Main Out: –88 dBu (Channel and Main Mix levels at
unity)
Common Mode Rejection Ratio (CMRR)
Mic In: >70 dB @ 1 kHz, Gain @ maximum
Crosstalk
Adjacent Inputs: < –105 dB @ 1 kHz
Mic Input to Main Output: < –87 dB @ 1 kHz
Input Gain Control Range
Mic In: 0 dB to +60 dB
Line In: –20 dB to + 40 dB, mono channels
Line In: –20 dB to +20 dB, stereo channels
Phantom Power
+48 VDC
Equalization
Mono Channel EQ:
High: ±15 dB @ 12 kHz
High Mid:
±15 dB, sweepable from 400 Hz to 8 kHz
Low Mid:
±15 dB, sweepable from 100 Hz to 2 kHz
Low: ±15 dB @ 80 Hz
Stereo Channel EQ:
High: ±15 dB @ 12 kHz
Mid: ±15 dB @ 2.5 kHz
Low: ±15 dB @ 80 Hz
Mixer Rated Output
Main: +4 dBu
Aux Send: +4 dBu
Control Room: +4 dBu
Alt 3/4: +4 dBu
Maximum Rated Output:
+27 dBu @ Main XLR and TRS outputs