[Anahata]

GarageGuitar wrote:

So I guess I'll be looking onto lots of foam..... Any ideas on how to
neatly foam a ceiling with pot lights in it? Maybe a checkerboard of
12x12 squares with lights in opne spaces......

To reduce the bass problems you need *depth* of absorbing material. Put
as much thickness as you can on the ceiling without hitting your head on
the bottom of it, leaving gaps where the lights are.

You should easily be able to add 8 inches thickness of absorbing
material, or possible save money by having a 4" gap and 4" of absorbent
material below that on a false ceiling framework. Dense fibre glass is
better than foam.

On the walls you've covered with foam, instead of covering the whole
wall with foam, cover half the wall with double the thickness. Try to
get bare parts of the wall facing treated parts, so there's no place
where sound can bounce back and forth between them.

It won't be perfect but you'll get less bass resonance and less
"deadness" at the same time.

Anahata