The pentagonally shaped room works like a charm but, being large, has required lots of amplifying power (12 channels each of which has 200W capacity). I've been in love with electrostic speakers for decades but the full range Sound Labs units are a dream come true.

The syatem is used for audio AND video - I cannot tolerate poor sound. Previously a vinyl addict I'm now a digital convert with all players modded.

Really I'm at the end of the audio road. Might change the projector soon (it has done nearly 12,000 hours) + maybe other video items.