Hi Don:
Well, as you may know if you've seen my posts before here, I am a HUGE Sansui enthusiast. Your question is a very good one and I have wondered about that myself.
I hope to get more information regarding the company and how they changed ownership and the effect of that on their products, sales, and reputation.
I have corresponded with some people Online that have provided me with bits and pieces of info. One of them is from Canada and he worked for a Sansui distribution company back in the 70's & 80's. He said thing things were great in the 70's but with the change in the Economy in the 80's and the huge jump in the value of the Japanese Yen, that really had a big impact on the company as far as having their products exported which wasnt cost effective anymore.
Sansui looked to be going ok thru 1987. Then late in that year, they changed their company logo. In 1988, there are far less ads then they had before in hi fi mags. It was probably around this time that the company was undergoing some serious business trouble. I believe some British global company took over the controlling interest in the company in Japan and while it looked promising at first (that the Brit orginization would inject money into the company) some big scandal in the British company took place and resulted in all assets being frozen. I believe then in 1993 the company name was bought by another company. The names Ive heard in this story are Polly Peck, and Semitech and one of them being affililated with Singer Sewing Machine Co.
I think from the 1990's on, Sansui stopped making any products for the US market. The Lyndhurst , New Jersey office that used to appear in print at the bottom of their ads in hi fi mags disappeared. I do have a copy of a 1991/92 German Sansui catalog and you can also check Isao's site:
www.sansui.us Isao is on the Yahoo Sansui Group and plans to expand his site very soon. It seems like the newer company has built some cheaper products like mediocre vcr's and whatnot, but they have also made some very elegant, state of the art audio amplifiers as well- such as one thats on Ebay now where the seller said it won Japan's highest award for Outstanding Audio Product in 1995 (Pat S, a member here, had mentioned it to me)
As for the Link you provided, I did email them a while back asking them the same question you asked here- what relation they have to the old company but they never responded back. 'gware' is a member on audioasylum and I belive he lives in Tokyo, its been a while since I got in touch with him Online, but maybe he can update me with some more info if he knows anything.
Regards, B/F.