Already finished plinth for my Sony TTS-2500.
Using 5 of 20mm plywood so dimension was 500mm x 500mm x 100mm.
It's so heavy, rigid and match with the deck.
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Using 5 of 20mm plywood so dimension was 500mm x 500mm x 100mm.
It's so heavy, rigid and match with the deck.

Cut the hole refer from manual.
Space maybe enough for 2 tonearms.
One of tonearm that will use in this plinth.
Still find the second one...