Crossover Car Audio EX4.6 PRO 4 Way or 3 Way Electronic Crossover 9 Volts, 4 ...
Crossover slope rate: Butterworth 12 db/Octave. Crossover Car Audio PRO 4 Way or 3 Way Electronic Crossover 9 Volts, 4 in 6 Out RCA Channels Car Sound Processor -. 9 Volts RMS maximum output.