Tubegroover,
Clio09 makes a good point, it really depends on your speaker's ease of drive (not just the sensitivity rating) room, music genre and listening levels.
His result with a 10 watt amp is similar to mine with an 8 watt amp.
I listen to predominantly jazz and big band and sound envelops my room (14×25×8 feet). When I do play classical, usually small-moderate scale it is really compelling and engrossing . Large scale orchestral music is quite good with my 94 db 14 ohm speakers. I won't claim that this is the ultimate set up for large scale orchestra but my point is it does provide a satisfying musical experience. The presentation is very resolved, delineated and lively emotionally.
I'd say the Coincident, Wavelength 300b (several versions available) and Clio09's amp would be worth a listen. Tubegroover, a 845 SET amp may be ideal if your music is mostly larger scale classical fare and high sound volume.
Charles, .