Newbrie, I do not have experience with Krell, but have used Sound Anchor stands under my last 5 pair of amps, and currently with my Atmasphere dialogue amp in my surround sound system. I agree with Cornfed that it is worth getting the amp off the floor, even if you don't believe that there is a performance gain. In my situation, there was always an improvement, and the amount of performance gain is controlled by the type and design of the spikes under the Sound Anchor AND by what you put between your amp and the Sound Anchor. Some of the choices for either or both positions, that all sound different from each other (and different than nothing at all) are: Black Diamond Racing, Mod Squad Soft Shoes, Walker Valid Points, Iso Bearings, Goldman Cones, Simply Physics, Vibra Pods, Audioquest Sorbothane, Roller Blocks, and Mod Squad Tiptoes. Yes, I own all these feet, and I still cannot tell you which will work in your system. It depends on the amp, your foundation and floor, the placement in the room and many other variables. Please do try the Sound Anchor stand, and experiment with as many different feet as you can borrow or buy. If I had only one shot at trying a Krell with Sound Anchor, I would use the Brass spikes Sound Anchor has available between the stand and the floor, and Mod Squad Soft Shoes between the Krell and the stand. Let us know how this turns out.