LP12 suspension susceptible to acoustic feedback


My turntable setup: LP12 (early 80s model, unmodified except for Nirvana springs), Syrinx PU2G, Shure M95-HE.

When I place the arm/cartridge on a (stationary) LP, the entire arm board and arm rest resonates to light finger taps, and the sound emerges as rather loud thuds through the speakers, at normal listening levels.

When the arm/cartridge is lifted off the LP, the feedback is minimised.

My LP12 rests on three light wooden blocks (the sort kids play with), a marble slab, a wooden slab and four sheets of thick plate glass, in that order.

I'm thinking of getting an IKEA Lack table for the LP12.

Any solutions to eliminate, or minimise the feedback?

Thanks.

Becks
tubemoose

Showing 2 responses by theo

Sounds like you have too much under the TT. I use Aurios under my LP12 and get great results. I have on a cabinet that is braced to the wall behind it to control any lateral movement. And with the Aurios under a single shelf that the TT sets on I have no issues except extreme foot fall.
If you have a concrete floor than you don't need a wall shelf. Just the a good solid stand will do. But I would tie the elephant up out back when playing records as mine used to want to dance and he might bump the TT stand.
It was sad when he died. Plumber told me I should have buried him instead. Even if it worked for the goldfish, I know now that buriel was the way to go.