Dennis,
I was in Ancona, Italy where both Generalmusic and Ketron are designed and manufactured. When I was touring the Generalmusic factory I saw hundreds of Ketron XD9 plastic cabinets lined up on tables. The people at Generalmusic said they do some of the manufacturing for Ketron. Paolo is correct. I was there in 2002 and I saw it myself.
What does occur is that you might find that someone who used to work for one of the other Italian manufactures might switch and now work for a different company.
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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com