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Bought a set of old 21-inch tall bookshelf wood-veneer type speakers at a sale this week. No markings and they cost upwards of $19.95. They were with a mid to late 1970's receiver, so I figure they are about the same age. The boxes are 1-inch MDF, I believe, so they are heavy, and I guessed that they had good stuff inside. Couldn't get the grills off to see before I bought them.Got them home and found that the grills were permanently glued on. Some damage to one grill frame prying it off. The drivers are Scan Speak, a little 10-inch and a tweeter in each, with a 5-inch round hole, looking like it was made for a midrange, covered with foam rubber and a plastic grill, used as a port.
Anyone have any recollections suggesting what these might be or who might have made them. The main grill looks to be inspired by the AR 2, a thin piece of wood with the cloth stapled around the edges, and glued very snughly into the front of the cabinet. Grills are plain black, and the veneer is walnut.
Here's an issue I can use help with, TIA to anyone with good info: The woofers look to be just a little smaller than a standard 10-incher, and the inside diameter of a standard 10-inch surround (e.g. from Mat Electronics) just about matches the outside diameter of the speaker cone. What kind of surround is most economically obtained that will be right for such size woofer?
Follow Ups:
What kind of tweeter is it? Dome, cone, ??? The "port' with the foam and plastic grill sounds like an aperiodic vent, and that suggests a Dyna A25. The size is about right, too, but they used a rectangular port and a 1.5" dome mid/tweeter. Also, what is the woofer surround material?What's on the back?
I did a search and found that Scan Speak was started be ex employees of Seas who started out by making speakers very similar to the Dyna A-xx. I guess I've got a pair of those.The woofer surrounds look like something close to a thin butyl rubber, not much different than an old inner tube.
Sounds like SEAS or one of those outfits. Scan Speak makes a vent similar to what you described for aperiodic enclosures.Nice find, might even be historic.
Dome tweeter?
The tweeter has a thick catcher's mask on the front and I didn't have enough light to see in there and tell for sure which it was. Everything is glued together, and I didn't see any reason to pull anything apart there to take a look. Let you know when I can see in.
The drivers were all glued in, too. No screws!
glued and not screwed. Don't know if the speakers were stock or altered and this was a long time ago (late 70's/early 80's).
Me, too. That was a speakerlab thing. That's what the instructions to the kits said. Makes it a pain to check things out on the inside.
The Scan-Speak aperiodic vent is still available:
http://www.madisound.com/cgi-bin/index.cgi?cart_id=6075.25902&pid=1607
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