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

Help me choose a speaker!

PARAMETERS

Room will be 10'x16'; budget- less than $4k (new or used, I don't care which).

I have 4 tube amps (all modded to the max)- a pair of 7-watt 300B's for mids/highs, and a pair of 170 wpc (in triode) monoblocks for bass. They are driven direct from the analog volume of my Audio Aero Capitole 24/192 CDP. The bass amps have volume control as well, so they can be infinitely adjusted in relation to the mids/highs.

It really seems tough to find a good selection of speakers that are highly efficient (for the 7-watt SET 300B's), but also 3-way (for the bass bi-amp). No horns please...

OK- on the short list are: Coincident Partial Eclipse and Silverline Sonatina. (not interested in Soliloquy, as I have heard they are better with SS, and the Silverlines excel with tubes).

Any ideas given the above parameters? (keep in mind that up here in Canada, we have limited access to a lot of stuff- so no 'exotics' I haven't heard of please- thanks!).

BRING IT ON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!