Sansui SP-G88: C. 1987. Mostly a domestic Japanese speaker, but I believe some got to Germany. And in my opinion, they were Sansui's answer to the Yamaha NS -1000.
I bought these heavy speakers many years ago as
used. In 2010 one of the titanium tweeters just went bust. So I took a long train ride to Tokyo's Akihabara. I bought a pair of British-made, silk dome tweeters that matched the output of the originals. For my taste, this improved the sound. In their original configuration, they were a little bright. I also rewired them, installed new capacitors, and built a new board for jacks that accommodate either bananas or spades. I also pulled off the child-proofing screens.
These speakers are quite sophisticated. The 12 inch woofer diaphragms are a combination of carbon weave and fiberglass. The 4 inch squaker diaphragms are made from cross weave carbon. And both units use two magnets that are magnetized in opposite directions. The die cast frames have been carefully engineered for rigidity by using two sorts of structure and varying thicknesses to enhance rigidity.
The proof that all this stuff is not just gimmickry is in the sound. They are balanced and present good detail so you can hear all the instruments. Recently, I found that the preamp section of my renovated 1970’s Pioneer SA-8900 produces more articulate low frequencies than the Melos tube ‘pre’ I have used for years with these speakers. The drum kit and bass guitar sound amazing, and yet are balanced nicely with the rest of the frequency range. The downside is that the Melos GK may make the Sansui’s image better. The power comes from Trio/ Kenwood L-05M mono amps.

I think I’d have to spend a lot of money to replace these with a modern speaker. I’d like smaller units, cuz frankly they’re too big for my small room. I painted the cabinets a sort of baby blue which moderates the dreary monolithic look and keys onto the decor.