Quested SBC250 One
The SBC250 amplified controller (250W) has all the features to allow perfect integration of the sub with any system. It allows you to control crossover from 40Hz to 135Hz, gain control from -14db to +6db, up to 160 degrees of phase control, along with a polarity ± switch, output level metering and a bypass function, all in a 1U rack unit. Remote power allows for very easy setup, with all the controls you need at your fingertips.