Clarification
The cabinet is a slot tuned Helmholtz. Even a 1/4 wavelength would be 6 3/4 feet for the frequency (42 Hz) that it is tuned to. This was an example of an over zealous marketing guy.
Chris Kline
KLine Labs
Optimus T-70s
I was the design manager for Tandy Speakers. The T-70s were my conception. I wanted to design a slot loaded system (ala Toby's speaker designs). The T-70 was one of my favorite speakers we designed. The tweeter was a Seas that we made a special purchase. Generally we wouldn't...
The T200 were NOT done on my watch. They were done by a company named Sunwood. My team did the T-300. The T-200 used two 10" woofers. Unless you find them on eBay, you'll have to find suitable replacements at Part Express or Madisound. I can used my Bass Bass Pro and make some suggestions. Chris...
Jocko NC,
The T-300 tweeter was originally a Peerless soft dome but later a Tonegen knock-off to save money (make Tandy more profit). The midrange was originally a CTS mid, which Tandy speakers tried to knock off with poor yields. The woofer and drone were made by Tandy Speakers. They were...
P.M.,
They were produced mostly in Fort Worth, TX. Tandy Electronics had two operations: Tandy Speakers and later Tandy Cabinets. Many years (after 1990) later after Tandy bought O'Sullivan Industries; some were built in the O'Sullivan operations in Virginia and Missouri.
I was the designer of most US made systems from 1977 to 1990. There were two major manufactures: Sunwood (from Asia) and Tandy Speakers. While Sunwood did have better cabinets (finish-wise) and attention to details, the US made speakers from Tandy Speakers were always superior in sound and...