Van Alstine (AVA) has three hybrid amps in their line up. The Fet Valve 600 R (300 wpc), 400 R (200 wpc), and the DVA 850 monoblocs (850 wpc). I have no personal experience but have read multiple rave reviews.
Based on all these responses there are more hybrids offered than might be imagined.
Based on all these responses there are more hybrids offered than might be imagined.