{ "Noise" : { "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" }, "4-Band EQ (Stereo Channels)" : { "High Shelving" : "±15 dB at 12 kHz", "Hi Mid Peaking" : "±15 dB at 2.5 kHz", "Low Mid Peaking" : "±15 dB at 400 Hz", "Low Shelving" : "±15 dB at 80 Hz" } }, "USB" : { "Format" : "USB 1.1", "I / O" : "Stereo Input, 4-Channel Output", "A / D / A" : "24 bit, 44.1 kHz / 48 kHz" }, "Power Consumption" : "55 W, 100 to 120 VAC, 50 to 60 Hz", "Operating Temperature" : "32 to 104°F (0 to 40°C)", "Dimensions" : { "Height" : { "Front" : "1.8" (46.3 mm) ", "Rear" : "6" (153 mm) " }, "W x D" : "29.4 x19.1" (748.0 x 486.0 mm)" }, "Weight" : "31.0 lb (14.1 kg)" } |