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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
tbromgard OP
814 posts
 
Yogiboy-
How do I address the mismatch? Should I get a different cartridge? Thanks.
yogiboy's avatar
yogiboy
5,612 posts
 
Yes or a different arm.
wolf_garcia
6,677 posts
 
I solved that issue in my ported speakers (and sub) with some "old stock" Nakamichi rumble filters (30hz) seemingly with no audible effect on the rest of the frequencies...you can still buy filters pretty cheap on Ebay...when I switched to a line stage preamp I bought a Cambridge 640P with its 20hz switchable filter that works really well, again with no audible issues.
yogiboy's avatar
yogiboy
5,612 posts
 
Do a search in discussion forum under COMPLIANCE and it will explain tonearm cartridge matching.
stereo5's avatar
stereo5
6,339 posts
 
I said in a previous answer I use the KAB rumble filter. I consulted the manufacturers of both my turntable and speakers, and after I told them everything I tried, other than changing the cartridge and or arm, I was advised that the rumble filter was the best option without degrading the audible sound quality. The speaker manufacturer told me you can severely damage the woofer if it oscillates so much that the woofer cones exceed their parameters.

Try out the KAB filter, you have nothing to lose. You can always return it within 7 days or sell it here.

Bob
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