Thank you both for replying. I did buy and try the isolation pads under the turntable and I moved the turntable to two different locations. it must be the turntable or some of my records causing problems with my speaker cones spazzing out. I’m not getting any hum or feedback because I already tested the needle on the record with the record player off and the preamp on turning the volume up.

Also, I am curious. I know I should talk to GIK, I just thought he would read his own product on this thread. I ordered my GIK online so I never really spoke to anyone. I just went with what the reviews say to start out with. I was mainly wondering if the diffusers were good for ceilings in the first reflection point To break up the sound instead of absorbing. I will give Glen a call.

I’m just glad to hear from someone on this site.
thank you for noticing.

I think everyone's cones "spazz out"? Unless you have a rumble filter. I have my tt on an hrs platform and it still happens. Doesn't affect the sound.