I have a turntable and speakers on the same table due to lack of space and it’s not the sturdiest. There are intense vibrations on the surface when I turn up the volume a lot (which happens often), resulting in a lot of feedback to the speakers. Unfortunately, these anti-vibration pads didn’t help at all, meaning the vibrations are exactly the same when placing them under the speakers. Under the turntable, on the other hand, I feel like there is a little protection but maybe I just don’t want to admit that I wasted my money...