I used to have these problems, as well. They resolved completely with the KAB rumble filter, which eliminates the extremely low frequencies that contribute to the woofer pumping.
Michael
Michael
Woofer motion problem.
Whenever I hook up a turntable to my rig, or play a flac file that has been recorded from an analog rig, my woofers flutter in and out dramatically more than with even the most intense digital music. I believe this is like flutter and wow that is extremely low frequencies but not sure. I notice these movements during some of the quieter passages on the LPs. Can anyone explain this and tell me whether it can be prevented?