Maple platforms


Hi

I was wondering if anyone has used maple platforms under their turntable and if so what were the results. An exmple of the platforms I'm refering to can be seen at: http://www.mapleshaderecords.com/tweaks/platforms.php

My rack is MDF so I'm wondering if puting something harder between it and the turntable will improve sound. In other words, does the mdf have a damping affect on the turntable--in this case a Rega 3?

Thanks
24u

Showing 3 responses by dgarretson

Tom,

Glad to read in your Faq that you also like sandboxes. I improved my sandbox by cutting up the wood plinth that rests on the sand to isolate suspension towers, motor, and flywheel from each other and prevent vibration from being conducted across the plinth. Then I converted my TT from sprung to hard suspension to improve coupling to the sand. The set-up was then significantly improved by adding springs to float the 300 lb. TT/sandbox combo. It's likely that any thick maple platform would similarly benefit from springs. The sandbox or thick maple acts as a dump for TT vibration, and the springs decouple the entire assembly from earth.
Dan ed,

You have beautiful woods in your plinth and custom rack, and I don't doubt the superiority of dense hardwoods. What I'm suggesting is that anyone with a hard-mount TT on a wood block or in a wood case (e.g. Lenco, Garrard)try floating the entire system (including wood rack) on another platform supported by heavy springs. Prior to trying this, I had shored up my floors & rack such that I could jump up and down without disturbing the stylus in its groove. But obviously there were earth vibrations still getting through, as the decoupling springs have made a further improvement. Now I can rest the needle on a stationary record and knuckle-rap the rack without a peep getting through to the speakers. Can you do this with your rack system?
Dan ed,

Currently my TT is resting on cut-up MDF pieces in my sandbox. As you suggest I need to try some exotic wood on top of the sand.

The fellow who turned me on to the springs had cement floors like you & was surprised by the improvement. Moreover, if you've got any vibration-generating equipment in the rack below the TT(e.g. AC powered devices), the springs above will decouple them from the vinyl. I would also think that most racks act as antennas for airborne sound waves. And then there's seismic activity & traffic on nearby roads.