I started a thread about my speaker placement here a couple of weeks ago. It's a bit hard to describe. The speakers are on a cabinet that comes out about 24" and behind them are built-in shelves up the ceiling that come out 12" from the wall. So they're on the front edge of the cabinets, and there's about 3" behind them up to the edge of the bottom shelves, and those are about half empty, creating perhaps a bit of an echo chamber. That really may be my bass problem, but that's my set up. (Is that more info than you wanted? Probably.)
BTW: Right now I'm listening to Stacey Kent and the M3s sound beautiful: full and present mids and the bass is just where is should be.
