Review Details

1" Dia Sorbothane Hemisphere Rubber Bumper Non-Skid Feet with Adhesive

1" Dia Sorbothane Hemisphere Rubber Bumper Non-Skid Feet with Adhesive

Product Review (submitted on December 5, 2017):
Got these to put under a set of amazing little Pioneer BS-22 bookshelf speakers that came without feet. The 50 duro sorbothane is quite squishy and sticky; the labels warn that the plasticizers may attack certain materials, and I believe it. You'll want to put them on a hard and invulnerable surface; I set the speaker on an old LP album cover and the feet started getting glued on within a day. They will definitely not let whatever they're attached to dance around even under extreme vibration, as they're very tacky.
You'll want to be aware of the weight rating for your application. Mine are perfect, in the mid-range of their rating, but they do squish down and deform some and I would not want to overload them.
These seem excellent at reducing vibration, and I'd love to do some measurements, but I won't, honestly, because I am lazy. Maybe you could, if you have the time, equipment and inclination. For my purposes, they make great speaker feet, and hopefully de-couple the bookshelf speakers from the unfortunately resonant bookshelves they're on. I wouldn't put them under something very tall and narrow and top heavy, like a floorstanding speaker, because they are quite soft and might make a tall thing unstable. Kind of expensive, but cheaper than many other squishy sorbothane isolator thingies, and nicer than regular furniture feet, so I bought 'em and I'm happy. Like the effect of a Riedel glass on a fine wine, they improve my experience because I expect them to, if nothing else. Ah, I do believe my speakers sound better already.