What a totally useless thread full of ad hominem attacks. If the OP actually cares anymore I will add that I concur with Mapman. Apart from turntables, tubes, and speakers, for the most part any mechanical vibration isolation is totally unnecessary with most SS electronics. This can be proven quite simply by gently tapping the chassis and noting that no sound comes out the speaker even with the volume turned up fully. (Of course, don’t try this with a tube amp or with a turntable or with a sledgehammer)Ayatollah, the thread still has some inherent value despite its schizophrenic meandering and trash talking (which I find highly amusing...). Folk freak’s most recent post and link allude to the fact that vibration can effect digital processing (and not simply interfere with a mechanical element such as a CD drive or TT). Call it a "piezoelectric effect." That is the central gist of the thread, and it remains a valid question. The sophisticated part revolves around "how" or "what" to measure.
Ethan, a room spectral sweep is a reasonable approach, but what sensitivity does that have to unveil more subtle juju like jitter? I concur with Ralph (MN tube hippy that he is) that vinyl (and tape) still sounds better to my ear. Does a room sweep reveal any differences? I assume not so there is obviously something more to it. I was playing digital files the other night. I then switched over to vinyl, and suddenly, both the dog, one of our cats, and both my kids came into the room. I still "believe" intuitively that there is something intrinsically jarring to digital file reconstruction. Another way to address the question of the day is does vibration management improve jitter performance and or musicality?