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Subwoofer rumble issue

I’m having a hard time solving a problem that seems to come and go. My subwoofer will rumble uncontrollably when playing records at a higher volume. If I turn the volume down sharply it goes away but when I creep the volume back up it comes back. I’ve tried isolating my turntable as much as possible with diy books, isolation feet, etc. (I don’t want to buy an expensive isolation platform unless that really is the issue.) Any thoughts on what I can do to fix this? Thx!
paulgardner

Showing 1 response by islandmandan

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islandmandan
1,260 posts
 
I had the exact same problem, though it was so long ago now I can't recall whether it was with my VPI or my current Garrard 401/ home made plinth. In any case, I contacted Dan Wright at Modwright, and he sent me a few resistors to try on my SWP 9.0 SE Phono Stage, and photos of where to put them on the circuit board. 

This worked like a charm, and didn't cost me a cent. Another act of kindness by Dan Wright, he's number one to deal with in my book. I'm certain the subsonic filter you bought will get the job done.

Regards,
Dan
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