Best speaker design for low to mid volume?


I'm not asking brand etc. I have a condo that had a listening area (approx 20 ft X 15 ft). I'm looking at floor standers. Generally, should I look for few drivers or more the better? Some speakers are 2 way, 2.5 way, 3 way etc). I listen to everything from classic rock to jazz and classical. This is a 2 channel system. Some tv/movies will be played through speakers as well. I like full bass (not so much the very tight bass sound and too crisp sound I find with Klipsch). Please chime in...sitting area approx 7 to 10 feet in front of system. I'm not looking for bookshelf speakers (WAF).
aberyclark
Contrary to the experience of others, with my Quad 63's I found that they only seemed to come alive at moderate volumes. At low volume they were not very engaging. My present boxes which are 6db more efficient seem to do a better job when driven by medium power amps. I sense but do not know for certain that the more efficient the speaker the better the low volume performance.
So the number of drivers really do not matter as much? It's the overall frequency of the speaker. I was considering the tekton Lores or Zu Omens. However, the B&W 603 towers get great reviews. The Tektons and the Zus do have a money back guarantee. The tektons come with optional grills.
Hi Aberyclark,
It is not cast in stone, but generally multiple drivers give you higher sensitivity. There are many designs that don't need multiple drivers to give that sensitivity. Sensitivity on its own does not improve the sound of a speaker at low volume, it just means that you don't need much power to drive it. On the other hand. I do believe that sensitivity almost always improves dynamics. This is in general, there are lowerer sensitive speakers that with the right power can be very dynamic. Its just most high sensitivity speakers are dynamic.
03-23-12: Timlub
"It is not cast in stone, but generally multiple drivers give you higher sensitivity."

Is that true? When I think of Hi Sensitivity speakers I think of only 1 or 2 drivers. When I see multi drivers I think power sucking, sensitivity lowering crossovers.
Similar size room as yours and also in a condo.
My Eminent Technology LFT8 speakers sound great and balanced at low volumes. One of the things I like best about them. would think other planar speakers would be similiar . Bass is excellent on these speakers and is not lightweight. Though they do need some power I am using a Pass x150.