BB-69 Bass Blocks Designed to Protect Car Audio 6X9 Inch Speakers, Eliminate Frequencies 0-300Hz at 4Ohms, Pair

-Protects car audio 6X9” speakers from receiving damaging frequencies.

-Frequencies blocked:  4 ohms: 0-300 Hz / 8 ohms: 0-150 Hz

-Easily handles power of up to 50 watts.

-Blue color-coded leads for easy identification. Encased with wire leads for easy installation.

-Designed to enhance the performance and power handling of tweeters by removing frequencies beyond their capabilities.