Woofers getting workout, but no bass


I'm puzzled: I'm noticing just about every LP I've played in the past couple days has my 10" woofers moving like mad, but not in time with the music and regardless of whether there's any audible bass.

I can only conclude that I have subsonic frequencies occuring (my phono stage doesn't have a filter). What would cause this?

Relevant components:
Speakers: Wilson Sophia 2's
Turtable: TW Acustic Raven One
Phono stage: Tron Seven

Thanks in advance.
madfloyd

Showing 2 responses by markpao

mapman, I experienced the same problem a while back and purchased rumble filters. It took care of some of the problem but not all. In my paticular case a change of cartridge did the trick- no rumble woofer movement now. I know this is not what you want to hear and may not be your issue but it is what it is. I will offer to let you try my filters to see if they work for you if you like- no charge of coarse. PM me with your address if you want to try them.