Sonus Extrema: Amplifier and room size


I am thinking about buying a pair of Extremas. I currently own a wonderful EAR 890 (70W per channel), and I wonder whether it is sufficiently powerful to drive them. Also, what is the minimum room size to enjoy the Extremas? Thanks
ggavetti
I saw Rowland mentioned up the thread. There's pretty good agreement that you'll need more power with those in your room. If you think of Rowland, then consider the Continuum 500 integrated. It's transparent, crystal clear, dynamic and absolutely stressless. I now prefer it to my tube, single-ended, Class A, headphone amp by Woo Audio.

Dave
With all due respect,the Extrema configuration I heard(with Townshend ribbon tweeters)was at the very least "close to today's better" competing designs.It is also built better than most,and looks like a beautiful piece of art.
I heard it with two different "tube" amps.The first did not have the juice to get them up and running very well,But the higher powered unit opened them up majestically.
Best to all.
Well, Gregm, my dream would be to be able to build a system with the Quads for the midrange, a couple of serious woofers, and perhaps two great tweeters. That said, it's not going to be easy. First of all, most of the subwoofers that you see around are made for the home theater market. I tried a velodyne foundation, 12 inches, and it just ruined the overall sound. I am now using it for my tv. I guess the ideal solution would be to have someone build a cabinet for two top-of-the-line drivers...something like, say, 10 inches. I don't think there are products on the market that one could buy with these characteristics, except perhaps for the gradient subwoofers that were designed for the ESL 63.

In reply to Sirspeedy, I love the Extrema's sound, an I agree with you that they are pieces of art. I guess my question is whether, absent the aesthetical pleasure that they give, one would buy them (and spend now around $ 6K) just for the sound...