Most musical high-efficient 3-way bi-ampable spkr?

Your fellow Canadian, Mr. Israel Blume, makes speakers that are hard to beat for your specifications. Coincident Super Eclipse are just about in your price range, and can be made for bi-amping upon request. 92db sensitive, 14 ohm (min 10), with response rated down to 28hz. Give Israel a call. The new Victory is even a little less expensive and rated at 97 db. I think you will find Coincident to be exceptional speakers, and Israel an exceptional guy that will get you in. But, you have to ask for bi-amped, as it is an option and not standard.

Best of luck.

Dale- which Silverline is your fav?

I have a pair of Coincident Partial Eclipse and find them to be exceptional speakers. I'm driving them with the DJH Signature version of the Cary/AES SuperAmp at about 35 watts per channel and for the first time in several years, I'm content with my system. Believe me, I've been through several speaker/amp combinations and by far this is my favorite.

I really, really like the SR-11. Although it's sensitivity is not quite as high as the rest of the line you have more than enough power for these. But I will bet you that the Sonatina will be hard to beat. I find that I prefer low sensitivity speakers with high powered SS amps (I cannot explain that, it just seems to be.) but the Sonatina with little fly amps had incredible sound and BASS. I think that this is what you are looking for. They were very smooth and did not make the tiny amps sound strained at all. Even with some relatively bassy material. It was a complete package. But you know the deal, "your mileage may vary"! I envied you today. There is nothing like hunting down new speakers. You get that kid on Main St. for the first time at Disneyland feeling. I hope that this is a fantastic time and you will get the sound that you are looking for. (And they do have bi-wire capabilities). I hope that there are more suggestions so that you get a full rounding.
ps; I would get the Sonatina's in briarwood. It just looks awesome. If I wasn't so hooked on my Dynaudio 1.3 Se's I would probably consider these and move to tube amps. Dale

Thanks for all the responses everyone- I think I have decided on the Coincident Partial Eclipses. I can have them set up for bi-amping, and for their size they are a wonderful, full-bodied speaker, yet also efficient enough for SET. Also- I will be having them upgraded to add Coincident TRS internal wiring and the new Scan Speak Revelator tweeter from the flagship Total Eclipse as well- should be fun!