Planet Audio EC20B Car Electronic Crossover – 3 Way, Pre-amp, Fine Tune Your High-Mid-Low Range Speaker Frequencies, Equalize

3-Way Electronic Crossover
Continuously Variable: Low Pass: 32Hz to 250Hz High Pass: 40Hz to 400Hz
Frequency Multiplier: x1 or x20
Crossover Slope: 6 or 18dB/octave
Front & Rear Level Controls
Subwoofer Phase & Stereo/Mono Switches
Variable Bass Boost 0 to +12dB @ 45Hz
Configuration Outputs for 3-Way or Front, Rear & Subwoofer
Remote Bass Knob