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Would a concrete plinth be a good idea for a sprung t/table? ...

Like an LP12 or a Thorens?

OK, plinth-gurus ... can you give me your reasoned opinions on whether concrete would be a good material for a plinth?

BTW, as far as I understand it, the purpose of the plinth (apart from just holding up the top plate! :-)) ) is to conduct vibrations engendered in the top-plate "down and out"!!

A knowledgable (and GEA) tinkerer friend of mine recently made up a plinth for a Thorens out of 1" thick Oz hardwood (mountain ash) - to replace the stock plinth which was fairly lightweight (solid) wood, being only 1/2" thick. He has two Thorens t/tables ... one has this thin plinth, another has a much beefier plinth - and this latter one always had more bass "heft" than the thin-plinth one.

Anyway, his new 1" thick plinth changed the sound of that Thorens for the better - now it has the same or better bass than his other "beefier-plinth" one!! :-))

The above being a preamble ... if:
a) a heavier solid-wood plinth makes the Thorens sound better (what was anaemic bass becomes good bass!), and
b) the purpose of the plinth is to drain vibrations away

... would a plinth (for an LP12) made of cast concrete be a good idea or not (compared to the stock LP12 wooden plinth)??

It would not be too hard to "form up", say, a 1" thick plinth for an LP12 which had appropriate nuts embedded in the concrete to take bolts for the top-plate and used chicken-wire as reinforcing.

But I don't want to waste the time doing this if you hexperts out there tell me concrete is not a good material becoz ... etc. etc.
(And don't tell me it would look crummy bcoz I know I would have to spend some effort finishing off the surface of the cast concrete!!)

Regards,

Andy



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Topic - Would a concrete plinth be a good idea for a sprung t/table? ... - andyr 01:36:57 10/09/06 (25)


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