Crutchfield Bass Blockers

Protect your new car speakers from bass distortion and enjoy cleaner sound with Crutchfield's Bass Blockers. Each Bass Blocker handles up to 50 watts RMS with a 6 dB per octave roll-off. Here are some general guidelines for matching Bass Blockers to speaker size. Speaker Size Cut-off Frequency 6-1/2", 5"x7"/6"x8" — 150 Hz 5-1/4" — 300 Hz 3-1/2", 4", 4"x6" — 600 Hz (low power) 3-1/2", 4", 4"x6" — 800 Hz (high power) Tweeters — 5,000 Hz These models come fitted with easy-to-use quick-slide connectors that make installation a cinch — no splicing or crimping needed. The listed cut-off points are at 4 ohms. If you use 8-ohm speakers, the cut-off point is half the listed frequency. If you use 2-ohm speakers, the cut-off point is double the listed frequency.