Hoping this is the right forum for this...

My amp shop is a 15'x22' room with 9'6" ceilings and can best be
described as "hard". Recording and listening almost exclusively
to guitar amps. Occasionally gets pretty loud.

The question for the experts is a reasonable cost solution to
deaden the room. Appearance doesn't matter so much. Things I've
considered:

- Just paste empty egg cartons to the walls. Will this work?
- Build "corner baffles". I'm sure there's a better name for
these, but the idea is something that goes in the room corners
with the open side facing the corner. Within are various board
lengths/widths to kill the corner echoes. Kinda like |_|_|_|.
Problem here is I can't seem to find a good source of tech info
for how to get the size/length/width etc. correct so the device
will actually function.

Or is the trick as simple as moving the combo/spkr cab away from
the wall?

Any thoughts or pointers to info are greatly appreciated. Also,
not afraid to do some carpentry if that's the best solution.

Thanks,
-Todd