Silencers not really? reduces noise by a fraction,
This review is from: PDP Officially Licensed Rock Band Drum Silencers (Xbox360) (Electronics)
I bought these pads obviously wanting to reduce the noise coming from the kit. However once in place it really reduces the sensors on the drums you have to hit really hard to get the tap to registered which defeats the object of buying them in the first place.
Other reviewers have mentioned taking to rim off from the drums placing the silencer on top then replacing the rims, i've not done this as i don't see why. If you remove the rims and the clips break your going to be able to get them back on. I personally didn't buy my kit from a shop. But for everyone that has i wouldn't risk trying to remove the rims encase it damages the kit, then making your warrantly invalid.
I used the silencers twice gave up and put them back in the box, yeah they might look good, but they don't do the job.