The sloping front of the speakers has been so manufactured to enhance sound dispersion and time phase coherency, whilst the distinctive top mounted tweeter is to avoid diffraction for more natural imaging. Using the same drive units as the more expensive 6371 the 6311 is suitable for slightly smaller rooms. Offering nearly the same frequency response in a slightly smaller package.

Bass is superbly controlled on these models by the addition of sand or lead shot to the rear compartment so designed. hi-fidelityuk strongly recomend this is filled. the bass response from these speakers is designed to be at its best with this tray filled. Lead or sand have a similar profound effect. once you've listened to them with the cavity filled, you won't want to listen with it empty. The bass registers tighten and go even deeper, whilst the midband steps forward just a little providing an even sound stage with vocalists in musicians sighted correctly in the place. You have been warned!

"Put all of these characteristics together, and you have a smooth, responsive, richly detailed loudspeaker that is remarkably easy to listen to for hours (I can't begin to tell you how many times I set out to listen to a single reference track and wound up listening to an entire album—always a good sign). While this speaker does not sound "spectacular" in the self-aggrandizing way that some high-end models do, it conveys much of the warmth, mystery, and drama of live music—
which is all we could hope any good speaker might do. If only for self education, then, I urge you to go hear the Ushers before you buy anything else in their price range. But, once your hear them, you may need to take them home with you." Chris Mertens The AV Guide July 2004.