My car stereo has a hi-pass filter built in to the amp/tuner (Pioneer). As a result, the bass - with sub-woofer - stays tight over a large dB range. My home subwoofer systems need to be tweaked for each source and sound level to avoid boominess. Is there a similar hi-pass filter I could put in the amp output channels to avoid boominess, without sacrificing quality?

Check out my new project- inspired by Stephen's quest for cleaner records, and that big batch of used LPs I got down in New Orleans recently.

DIY Record Cleaning Machine

That is some amazing artwork there Jeff!!!!! Tiny little details, GREAT!!!!!!

Hi everyone,

My Dad has asked me to help him buy new speakers because I'm a classical musician and have better/more trained ears than him.

He has a set of old Acoustic Research AR48s. The foam around the mid and woofer has completely disintegrated. After doing some reasearch online it appears that the foam is replacable.

Is it worth it to fix the foam, & (cones if neccesary) or even buy new drivers? Detail at http://simplyspeakers.com/