Main Mix Noise: Main Mix Fader at Unity, Channel Faders Down: -87 dBu (-91 dB signal to noise ratio, ref +4 dBu) Main Mix Fader at Unity, Channel Faders at Unity: -81.5 dBu (20 Hz to 20 kHz bandwidth, 1/4" main out, channel gains at unity, channel EQs flat, all channels assigned to main mix, odd channels panned left, even channels panned right) -Total Harmonic Distortion (THD) Microphone In to Insert Send: <0.001% -Microphone In to Main Ou . . .

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Main Mix Noise:
Main Mix Fader at Unity, Channel Faders Down: -87 dBu (-91 dB signal to noise ratio, ref +4 dBu)
Main Mix Fader at Unity, Channel Faders at Unity: -81.5 dBu (20 Hz to 20 kHz bandwidth, 1/4″ main out, channel gains at unity, channel EQs flat, all channels assigned to main mix, odd channels panned left, even channels panned right)
-Total Harmonic Distortion (THD) Microphone In to Insert Send: <0.001%
-Microphone In to Main Out: <0.005% (1 kHz at 15 dB gain, 20 Hz to 20 kHz bandwidth)
-Crosstalk / Attenuation Channel Mute Switch Engaged: -90 dBu
-Channel Fader Down: -88 dBu (1 kHz relative to +10 dBu, 20 Hz to 20 kHz bandwidth, microphone in, 1/4″ main out, gain at unity)
-Frequency Response Microphone input to main output (gain at unity)
+0, -1 dB, 20 Hz to 50 kHz
+0, -3 dB, <10 Hz to >100 kHz
-Equivalent Input Noise 150 Ω Termination: -128.5 dBu, 20 Hz to 20 kHz
-Microphone input to insert send out, maximum gain
-Common Mode Rejection Ratio Better than -70 dB at 1 kHz
-Maximum Level Microphone In: +21 dBu
-All Other Inputs: +21 dBu
-Main Mix XLR Out: +27 dBu
-All Other Outputs: +21 dBu
-Impedance Microphone In: 2.7 kΩ
-Channel Insert Return: 2.5 kΩ
-All Other Inputs: 10 kΩ or greater
-Tape Out: <10 Ω
-All Other Outputs: 120 Ω
-Equalizer 3-Band EQ (Mono Channels):
-High Shelving: ±15 dB at 12 kHz
-Mid Peaking: ±15 dB sweep 100 Hz to 8 kHz
-Low Shelving: ±15 dB at 80 Hz
-Low Cut Filter: 18 dB/octave, -3 dB at 100 Hz

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