In article ,
Stewart Pinkerton wrote:
So it seems only common sense to me that the disc must be isolated from
vibration of any sort - either structure or air borne. Including those
from the speakers. This must involve some form of heavy cover to the
entire turntable assembly.

Not if the disc is clamped to large mass of mechanically compatible
material - such as vinyl or acrylic.

It's a point, but then the disc itself isn't rigid. And most would prefer
it not to be in direct contact with a material harder than itself for
practical reasons.

--
*Oh, what a tangled website we weave when first we practice *

Dave Plowman London SW
To e-mail, change noise into sound.