From when I first became aware of good home audio in the late 60s through later years it was always a mystery to me as to why the Japanese made lousy speakers. Including Sansui…I had a large pair of Sansui speakers for a while (left with me by a friend) and they were awful compared to my KLH speakers, or JBLs, Klipsch, AR, Bozak…whatever…just bad speakers, and the Japanese know how to make other things. Weird. Later of course things got better, but I've never forgiven Yamaha for the NS10…I understand why engineers used them, and all of them did, still…it makes me feel creepy just thinking about those things. I have to go lie down and breathe...
