The Behringer FBQ3102 31-Band Stereo Graphic Equalizer with FBQ Feedback Detection System is a professional 31-band stereo graphic equalizer for both live and studio applications. The revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as an audio analyzer. Dedicated mono subwoofer output with adjustable crossover frequency and an additional sweepable high and low-cut filters for each channel remove unwanted frequencies, e.g. floor rumble, tape hiss, etc. Highly accurate 12-segment LED input/output metering and input gain control for easy level setting, ultra-low noise audio operational amplifiers offer outstanding sound performance. Relay controlled hard bypass with an auto bypass function during power failure (failsafe relay). Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors, shielded toroidal power transformer for ultra-low noise performance. High-quality components and exceptionally rugged construction ensure long life. Height: 18 Width: 0 Weight: 15