Marc, while I was waiting for Phil to come back with info about the bass gain (keeping me in suspense haha!), I was reading some of the threads here and elsewhere about the Definitions. I noticed that you previous had Symposium roller blocks under yours, but now you are onto the Revopods. I happen to have a couple sets of roller blocks lying around that I used to have under my preamp and DAC.... how did you find them under the Zu's? I always figured spikes / cones would be better for speakers and roller blocks better with components that would be affected by micro-vibrations. What made you move on to the Revopods? (Though I might regret asking, since they are $$$!) David