HELP-woofer moves alot when playing lps

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

Hi, **I suspect you are correct that it is NOT cart/arm mismatch (its rega and clearaudio). If I ignor the issue, wont the woofers be damaged by too much pumping?**

Right the first time. It's unlikely an arm/cart resonance problem and yes the woofers can be damaged eventually, especially if they bottom out. The major cause of woofer pumping is acoustic or mechanical feedback. If you get a wall shelf or suitable support and position where your speaker isn't playing directly on it, chances are you will cure the problem. If this isn't feasible maybe you should get a subsonic filter as suggested.
Regards,

You can reduce the size of the ports with some cut foam strips (assuming your handy). This will increase the damping factor and reduce the pumping. A peripheral turntable platter clamp may also help. A subsonic filter did not have any affect in my st-up. FYI, I use a pair of ported full range floor standing tower speakers with the port diameter reduced. Note that is would be extremely rare for your woofers to be damaged. Don't let the handful of responders get you paranoid.

Agree with Stereo5 - the KAB filter is the best thing going to eliminate this issue. I love mine - zip zero nada downside to using it, absolutely no negative sonic impact and 100% solves the problem.

I have mine between my phono stage (PS Audio GCPH) and amp (Cayin A-70T).

We don't know what speakers we're talking about here. Whether or not the woofers could be damaged depends on the size of the woofer, it's excursion capabilities, and the extent of the pumping. MANY woofers will be damaged by repeated linear excursions in excess of their capabilities. If the pumping is severe, it's a recipe for disaster. At the very least, you're getting lots of distortion. If you get/make a more suitable mount for your TT, it will probably sound much better and eliminate the pumping. If the pumping is not severe and bottoming out, you can probably ignore it, and wallow in mediocrity.
Regards,