There are newer versions of this speaker that have modified/redesigned voice coil setups in order to tame the brightness/detail to your acoustical environment. The old models were very bright, IMO, and as Sean mentions had very little bass. They sounded best in overstuffed/dead rooms (think "After the Thin Man" furniture and drapes). I lost the website that sells the new models (with and without enclosure) and perhaps someone else will know of it. The site also sold tubes and used tube gear. If you are interested in this "type" of speaker you may want to check out Hammerdynamics.com. I understand that the designer/owner recently passed away and my heart goes out to his family and friends. Though I have not listened to the Hammer speakers myself I do find their design to be very interesting and have read favorable info about them in the Audio Asylum forums. They come in kit form only and you either build or have someone else build the enclosure to specs.
Lowther classic audio
Does any body have a set of these that could comment on the sound of these . I hear the speakers only work well in the horn loaded cabinets, not the bass reflex type. Is the bass better than the horn type , do these image as well . Greg