Available in single or two-channel versions, these feature packed equalizers offer total control of 31 frequency bands from 20Hz~20KHz. Each band provides 20mm slides, switchable 6dB or 12dB of boost or cut, for precise tonal control. Constant Q circuitry ensures that the bandwidth of the selected frequency stays the same, even when approaching the maximum boost or attenuation. Adjustable high and low pass filter allow additional control for removing noise and rumble.