Mackie Onyx 1220 Appendix C: Technical Info, Onyx 1220 Specifications, ONYX, Crosstalk, Noise Floor, Equalization, Dynamic Range, Phantom Power, Input Impedance

1220

Appendix C: Technical Info

ONYX

Onyx 1220 SpecificationsFrequency Response

Mic Input to Main Output (Gain @ Unity) +0, –1 dB, 10 Hz to 50 kHz +0, –3 dB, <10 Hz to >100 kHz

Distortion (THD & IMD)

Mic Input to Main Output (@ +4 dBu output) THD: < 0.01%, 20 Hz to 20 kHz SMPTE IMD: < 0.005%

Maximum Input Levels

Mic Input:	+21 dBu, Gain @ Unity
Inst Input:	+21 dBu, Gain @ –20 dB
Mono Channel Line Input:
	+30 dBu, Gain @ Unity
Stereo Channel Line Input:
	+21 dBu, Gain @ –20 dB
Tape Input:	+15 dBu
Aux Return:	+21 dBu

Dynamic Range

>113 dB (Mic In to Main Out)

Noise Floor

(20 Hz to 20 kHz Bandwidth, 150Ω source impedance)

Equivalent Input Noise (E.I.N.) –129 dBu @ +60 dB gain

Mic Output Noise:

Recording Output: –100 dBu (minimum gain)

Residual Output Noise:

Main Out: –97 dBu (Channel and Main Mix levels off)

Main Out: –87 dBu (Channel and Main Mix levels at unity)

Common Mode Rejection Ratio (CMRR)

Mic In: >60 dB @ 1 kHz, Gain @ maximum

Crosstalk

Adjacent Inputs or Input to Output: < –75 dB @ 1 kHz

Adjacent Inputs to Recording Outputs: < –90 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
Mid:	±15 dB, sweepable from 100 Hz to 8 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 Outputs

+21 dBu @ TRS Outputs

Maximum Voltage Gain

Mic Input to:
Main Output (XLR): 85 dB
Main Output (TRS): 79 dB
Tape Output:	79 dB
Aux Sends:	85 dB
Control Rm Output:	89 dB
Alt 3/4 Output:	64 dB
Phones Output:	87 dB
Inst Input to:
Main Output (XLR): 66 dB
Main Output (TRS): 60 dB
Tape Output:	60 dB
Aux Sends:	66 dB
Control Rm Output:	70 dB
Alt 3/4 Output:	45 dB
Phones Output:	68 dB
Stereo Line Input to:
Main Output (XLR): 46 dB
Main Output (TRS): 40 dB
Tape Output:	40 dB
Aux Sends:	45 dB
Control Rm Output:	49 dB
Alt 3/4 Output:	24 dB
Phones Output:	47 dB
Tape Input to:
Main Output (XLR): 31 dB
Main Output (TRS): 25 dB
Tape Output:	25 dB
Control Rm Output:	16 dB
Phones Output:	14 dB
Aux Return to:
Main Output (XLR): 26 dB
Main Output (TRS): 20 dB
Tape Output:	20 dB
Aux Send:	26 dB
Control Rm Output:	29 dB
Phones Output:	27 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

26 ONYX 1220