Standing waves

Conversely, I HATE music played and heard outside. My drumset sounds thin, flat, and dead, with no resonance, no low frequency fullness, no sustain. Music reproduction is a different matter, added room resonance, fullness, and sustain (all boom) very undesirable.

The first question needing to be answered is the dimensions of the room. Generally, the smaller the room, the worse the standing waves (eigenmodes).