BB-525 Bass Blocks Designed to Protect Car Audio 5.25 Inch Speakers, Eliminate Frequencies 0-800Hz at 4Ohms, Pair

https://www.recoilaudio.com/wp-content/uploads/2022/06/Bass-blocker.mp4 -Protects car audio 5.25” speakers from receiving damaging frequencies. -Frequencies blocked:  4 ohms: 0-800 Hz / 8 ohms: 0-400 Hz -Easily handles power of up to 50 watts. -Yellow 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.