I had Usher speakers with proper amplification. I enjoyed the sound but they had to be played at a moderate to high volume to provide full sound, proper bass. I now have Tekton speakers and find the sound full, with proper bass at lower volume.
What is your take on high efficient speakers vs. low efficient speakers?
Consider both designs are done right and your other equipment is well matched with the speakers. Do you have any preference when it comes to sound quality? Is it matter of economic decision when it comes to price? - power amps can become very expensive when power goes up, on the other hand large, efficient speakers are expensive as well. Is your decision based on room size? I'd love to hear from you on the subject.