Rockford Fosgate PP4-X Punch Pro Car 4-Ohm Passive Crossover (Single) OPEN-BOX#
Must use existing built-in 6dB/Octave Punch Pro crossover supplied with tweeter. Crossover: 4kHz @ 6dB/Octave Low-Pass. The PP4-X is designed for use with 4-Ohm Punch Pro midrange drivers and tweeters.