In Reply to: New ? for planars on concrete-slab floors--couple or isolate? posted by jeffreybehr on July 22, 2022 at 17:35:54:
OK, there are several issues here.
On one hand, as Roger Sanders says, the concrete floor adds mass to the speaker.
OTOH, concrete does vibrate and unlike wood, it doesn't sound good when it does. And it is very well coupled to the air because of its large surface area. Think of it as a sounding board.
My instinct would be to go with Roger Sanders -- he's the one with the experience after all!
But there is a better solution. That's to bond the speaker tightly to a massive base and *then* float that over the concrete floor.
That way you get the benefit of added mass without imparting vibration to the floor. The massive base has a small surface area, so it doesn't couple to the air as effectively as the floor does.
A tweak for the obsessives among us!
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Follow Ups
- RE: New ? for planars on concrete-slab floors--couple or isolate? - josh358 04:43:44 08/15/22 (1)
- RE: New ? for planars on concrete-slab floors--couple or isolate? - Norman M 08:53:56 08/15/22 (0)