... instrumentsFX SERIES 4-GROUP PERFORMING MIXERSPECIFICATION: ModelFX16FX24FX32Mono Input Channel 8 channels16 channels24 channelsStereo Input Channel4-group(8 mono ... 1KHz 32ΩGain Inequality≤2dBTHD≤0.02% @ 0dB 1KHzMono Channel EQHight\Sweep Mid\Low12KHz\110Hz~8KHz\80HzFrequency swing & GainFrequency ... < 8%,Gain:±15dB9 Main Output ot GEQ:Center Frequency of EQ63Hz,125Hz,250Hz,500Hz,1KHz,2KHz,4KHz,8KHz, ...