On Tuesday, 25 April 2017 22:07:06 UTC+1, dennis@home wrote:
On 25/04/2017 13:32, tabbypurr wrote:

no, but vinyl decks do want a very stiff shelf

Why?

anything less is prone to vibrate.

They fit rubber feet to make them flexible.

Preventing feedback is done by a series of hard heavy & soft damping materials.
Heavy platter, stiff metal deck
on soft springs
on a heavy very firm wooden case
slightly squashy rubber feet
very hard shelf

Anything less might or might not work, but often is far from ideal. I managed to get an old Pioneer PL12D working well by sitting it on stone - it had no deck to cabinet squishy layer. The paving slab mentioned is another effective way to stop vibration.


NT