HELP-woofer moves alot when playing lps


Hi-
When I play a record on my TT, I get an excessive amount of woofer movement, even when no music is playing. When I lift the arm off the record with the finger lever, the movement stops, and the phono stage is dead quiet. Its only when I drop the needle and turn it up a bit, the woofer starts to move in and out. I dont get this when playing cds, only lps. I have my system on a shelves, with the table onto and my integrated amp directly under my TT. Might this be an isolation issue? Thanks in advance.
tbromgard
Try engaging the subsonic filter if you have one-sometimes lps can have a slight warp or off center spindle hole that cause spurious low frequency excursions.
I have a Musical Fidelity integrated amp-there is no subsonic filter...how about a inline filter to remove rumble...does anyone have experience with such a filter?
I have experience with the KAB rumble filter. I had the same problem in my system with my VPI turntable. The filter attaches through the tape loop and I can hear no difference in the sound quality with or without the filter engaged. It totally stops the woofer pumping/oscillateing.

There was one for sale on here a while ago. I bought mine new from KAB. The insides are stuffed with audiophile parts, so it isn't a cheap piece of junk.

Bob
Are your speakers sealed or ported.

This is a very common problem.

Search the net as this subject has been covered in depth countless times.