Lanzar OPTIX6 Optidrive 3 Way Electronic Crossover
Front & Rear Channel High Pass Frequency Selector 32Hz to 800Hz Frequency Multiplier X1 or X10 Signal Gain Control +1208 Bass Boost Phase Shift Switch   Stereo/ Mono Switch Output Level Control Exclusive Remote Subwoofer Level Control Low Pass Frequencies Selector 50Hz to 160Hz   Bass Boost Frequencies Selector 40Hz to 120Hz