What is a Low Pass Filter


I can not fin a definition that a newbie like me can understand searching Audiogon. My Subwoofer, Sonus Faber Cremona, has 2 dials in the back. One for Low Pass Filter, switchable from 38-65Hz 6 positions and one for Gain that reads min to max.

More Info:
http://www.sumikoaudio.net/sonus/prod_cremonasubwoofer.htm

Thanks in advance for any help,
David
captaincapitalism

Showing 1 response by onhwy61

A filter lessens (attenuates) frequencies above or below a selected cut off frequency. Loudspeakers use filters to selectively limit the frequencies sent to individual drivers. A subwoofer input could employ a low pass filter to allow only bass frequencies to be sent to the woofer cones. As the name implies, a low pass filter lets low frequencies pass through unchanged.