In my opinion, people who always blabling something about “vibration”
are living in the earthquake area, probably right on top of the vulcano
or very close, ***becase I really don’t understand what they are talking
about***!? Using over 6 turntables at home I never ever noticed any audible
problem with vibration, I’m using custom made metal racks on parquet
floor.
Vibration is a problem on the dancefloor packed with 500
jumping people near 10 000 watts sound system - this is where turntable
definitely must be seriously isolated. But even there you will see
Technics DD in use!
@chakster (Emphasis added above) This is what they are talking about:
If you really want to hear what your recordings actually sound like, controlling vibration in the turntable is paramount to that goal. I'm not talking about people on a dance floor, I'm talking about vibration induced in the turntable by the loudspeakers. In a nutshell, if your system sounds harsher at higher volumes particularly when playing LPs, this is something to look at! The vibration need not be very much, in fact it might be microscopic. But so is the groove of the LP.
To this end, if the platter is able to vibrate in a different way from the base of the tonearm, this will enable to the pickup to see that vibration and it will induce a coloration. To prevent this, the platter surface and base of the tonearm must be coupled in a very rigid and acoustically dead manner. In this way the platter and base of the arm will vibrate in the same plane if it vibrate, this preventing the vibration from being picked up by the cartridge.
