If you really like the sound you have but you need more power I would try and see what Prima Luna has up the line (if they have any other more powerful amps). I just reviewed a set of monoblock Hybrid power amps. If your Prima Luna can operate as a preamp then you might be in luck because then you can add power. Or perhaps get a Prima Luna preamp via trade.

Anyway, the Shengya Power amps are terrific in terms of sound and power and has tremendous build quality - they make Bryston power amps seem like toys and cost a lot less. Hybrids have just as much chance of sounding like the worst of both worlds and IMO they often do. The PM 150 were quite nice on my set-up and will very likely drive virtually any speaker. 300 watts (4ohm)

http://www.dagogo.com/View-Article.asp?hArticle=752 Apparently on their website they have a special deal on pricing and include the matching preamp. I have not heard it but some other reviewers reviewed the bigger brother preamp and really loved it. $2400 for two 40lb beastly mono block amps and a tube preamp.

You can see a better real world picture of them on the floor here http://grantfidelity.com/site/SSI+20...Grant+Fidelity