Good speakers less efficient?

I've noted that many of the better speakers are 4 Ohm and not very efficient. What high performance attribute causes this correlation?

raduray11-29-2006 12:04am

raduray OP Details Discussions Posts This discussion Message User 14 posts 11-29-2006 at 02:50am Copy Comment URL Report Comment Edit Delete No stats, just observation. Nor did I say "all", but rather "many". Dali Helicon, Dyanaudio Contour, Harbeth, Totem Mani-2, some of the Tylers, et al. Not looking for a fight, just information.
raduray OP Details Discussions Posts This discussion Message User 14 posts 11-29-2006 at 04:08pm Copy Comment URL Report Comment Edit Delete Thank you all for your responses. I now have a better high level understanding of the design issues and tradoffs.