bimasta
Addicted Member
That wasn't the problem, Shelly. As I noted...Perhaps it was a bad mismatch between arm and cartridge.
The 160 bounced. The TD-125 bounced. A Linn LP12 bounced. But the solid-plinth Denon did not, and we couldn't even HEAR the footsteps. We stomped as hard as we could, we jumped up and down (and my friend weighed 260 lbs) trying to make the Denon bounce, and it wouldn't. We couldn't even HEAR the Thumps through the speakers.Maybe that floor was freakishly bouncy — but an unsprung Denon 1200 worked perfectly in exactly the same place.
But with three good suspended TTs, the cartridges bounced across the vinyl even when we tiptoed. (Granted, I didn't use the same cartridge with each, so your hypothesis wasn't tested.)
I haven't used a suspended TT since — but that change coincided with the purchase of my first good Direct Drive TT,* and had nothing to do the trampoline floor. That floor was at a friend's house; my own floor never had that problem with sprung TTs. The TD-125 and LP12 mentioned above were mine, and I'd also used two Oracles, a Delphi and Alexandria, both suspended, with no bouncing.
* Roy Gandy, who started and ran Rega, said the only purpose of springs in a suspension is to isolate motor noise — all the stuff about isolating external environmental noise is rubbish. Of course Gandy made a fortune selling non-suspended TTs, so his objectivity is questionable.