I'm now looking at the new LAiV GaNM monobloc's. I never thought I'd go that route, however after seeing and hearing class D amps at the Tampa Audio Expo, I'm going to give them a try. LAiV has developed their own class-D amplification which most other Mfg's have incorporated external sourced class-D power supplies. 6-Moons has a really good review of them. After e-mailing LAiV support with some technical questions, I'm about ready to get these.