Rockford Fosgate PP4-X Subwoofer Grills & Trims Featured in our article:

Featured in our article:

4 dB SPL Effective Piston Area (Sd) 50

66 in / 93 mm Mounting Hole Height (A) 3

0 dB @ 1 W / 1 m System Nominal Impedance 4 ohms System Frequency Response 48 Hz - 25 KHz ± 3 dB

5-line display with easy-to-read white background and variable color illumination

Rockford Fosgate PP4-X Subwoofer Grills & Trims Featured in our article:The PP4 X is designed for use with 4 Ohm Punch Pro midrange drivers and tweeters. Sold individually (1 each) The PP4 X is designed for use with 4 Ohm Punch Pro midrange drivers and tweeters. It features dual woofer outputs for use with two Punch Pro midrange drivers. Provides 6dB Octave dedicated low pass filter for the woofer. Must use existing built in 6dB Octave Punch Pro crossover supplied with tweeter. Designed ONLY for Rockford Fosgate Punch Pro