Mackie Onyx 1220i Quick Start Guide - Page 18
Technical Information
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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: -127 dBu -126.5 dBu Equivalent Input Noise (EIN), mic input at insert, 50 Ω source impedance, A-weighted: 60 dB (max) gain: -130.5 dBu 40 dB gain: -130 dBu Output Noise Figure (1/4" Main out, all channels assigned to main, Gain knobs at unity, 20 Hz to 30 kHz): Main Mix knob down, channel Level knobs down: -102 dBu (-106 dB SNR, ref +4 dBu) Main Mix knob unity, channel Level knobs down: -96 dBu (-100 dB SNR, ref +4 dBu) Main Mix knob unity, channel Level knobs unity: -93 dBu (-97 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: 44.1 kHz sample rate: -104 dB 96 kHz sample rate: -106.5 dB Frequency Response: Mic input to any output (all gain stages at unity): +0/-0.5 dB, 20 Hz to 20 kHz Stereo channel line input to any output (all gain stages unity): +0/-0.5 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 20kHz -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): 0.0015% Mic input at insert (-36 dBu in, +40 dB gain, +4 dBu out): 0.017% 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: 0.01%, 20 Hz to 2 kHz 0.02%, 2 kHz to 20 kHz 96 kHz sample rate: 0.01%, 10 Hz to 1 kHz 0.03%, 1 kHz to 47 kHz Attenuation and Crosstalk: @ 1 kHz relative to 0 dBu Main Mix knob down: Channel Alt/Mute switch engaged: Channel Level knob down: -85 dBu -95 dBu -95 dBu Common Mode Rejection Ratio (CMRR): Mic input to insert, max gain, 1 kHz, 150 ohm termination: -70 dB Maximum Input Levels: Mic input, gain at min (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: +22 dBu -38 dBu +22 dBu +22 dBu +12 dBu +22 dBu Maximum Output Levels: All outputs: +22 dBu Equalization Mono Channels Low: Mid frequency: Mid gain: High: Stereo Channels: Low: Mid: High: ±15 dB at 80 Hz 100 Hz to 8 kHz ±15 dB ±15 dB at 12 kHz ±15 dB at 80 Hz ±15 dB at 2.5 kHz ±15 dB at 12 kHz 18 Onyx 1220i