I may have posted this but it isn't coming up on my search, the Technidyne TD-10000, the biggest boombox in the world from 1990! 750 pure watts of power! I wonder how they measured this beast......
The first boombox to break the $50 USD Barrier! From Daiei, the Coltina. The Japan Times January 30-February 05 1995 Some info on Daiei, their moto was "Price Destruction!" https://ja-m-wikipedia-org.translate.goog/wiki/ダイエー?_x_tr_sl=ja&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=sc And the US Trademark for Coltina, it looks like it went on several products, anybody seen this fine machine?
I've never seen a speaker measured in cubic inches but the Strasser CSD-SR6 has two at 320 cubic inches, making it the world's largest. What is that, something like 10" x 10" x 3.2" deep?
Some neat information on plastics used in cassette transports, for you young ones, plastics have grown immensely since the mid-70's, they were still hit-or-miss in the 80's. The old guys will remember plastic car interiors turning white when they sat out in the sun and some of the hard brittle plastics of early electronics. Japan Plastics Age January-February 1982 Vol 20 Iss 183 1
Adrays in Michigan, I was never in one of the stores but they sponsored a ton of sports teams in the state. From 1980
Some more plastics info from 1980, most boxes are ABS and PS (PolyStyrene), GF = Glass Filled for added strength. Japan Plastics Industry Annual 1980
Mart Magazine 1980, some of these articles are about the coming of a recession, things were very similar to today.
Mentions of the Sony KV-4000 Mini-TV and the Sony FX41 TV Boombox from 1980 Oklahoma Retailer 1980-08 Vol 20 Iss 8
Randix, more known for that tiny vertical stereo, from 1979, I'd like to see the "vertical cassette deck".