These pads have done their job well so far. I have used them for many different speakers. They are foam pads, so not really a whole lot you can say, but they have held up very well for me. They retain their shape even with rather heavy monitors and they do what they are supposed to do.
Having made do with polystyrene blocks for years, I finally got some of these monopads. I'm really impressed, and would happily recommend them to anyone. I'd suggest that if you're expecting them to solve all your acoustic problems, you'll be disappointed (treat your room first..!!) but as a way to isolate and angle your monitors from your speaker stands, I can't fault them.
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