Astin Trew sells isolation feet upgrades for hi-fi equipment. Not a lot of people know this. We developed the feet for our AT3500 CD player, as it required something a little special to sit upon. They have been on sale as upgrades for some time now, at £29.90p per set of four - we have not marketed them, no reviews or advertising, but they show on our price list and we get asked for them from time to time.
We sold a set recently and I got the following email back from Jonathan in Tonbridge... 'They are superb. Over the years I have used aluminum cones (bad), and Russ Andrews wooden supports (better), but yours are a substantial improvement. Please send me two more sets, and I will use them throughout.'....which is very pleasing to hear, and we have indeed sold Jonathan another two sets.
Nice to think that we really did get this component right.
Which leads me to think that we should really start marketing these beauties. Made from a very particular filled (hard) rubber material, they have a threaded brass insert in the middle of them and rather than being your standard solid cone shape, they are castellated on the 'flat' surface, so they make contact with the underside of the equipment chassis at three points only; the cone point itself facing downward and siting on the table or equipment support rack.
We thread them onto the AT3500 with an M4 thread stud, but we know that performance improves further if used without a mechanical fixing, or the application of a little BlueTack to hold them in place. Your local Astin Trew dealer may not have them in stock, but they can order them from us. If you do not live near one of our dealers, we will sell to you direct. Now to design a marketing campaign for our isolation feet!