On 27 Sep 2006 15:14:22 -0700, "jailhouserock"
wrote:

I've had about 10 pairs of different vintage speakers so far- and these
by far have the heaviest cabinets and thickest board used to make the
cabinets- they also have removeable backs which is a nice plus. As
usual, finding info on these on the net is difficult, as most places
want to sell you a vintage audio "bible" to get the info.

Why are removable backs a plus? If the speaker fixings are
accessible from the front, that's fine. A sealed back would seem
superior, if anything.