Hello, My name is Norman Druce I have worked on 4,6 and 8K's, rebuilt many of their power supplies
and have wired a few ssl room's. I have also worked on the 9K's a bit and have partially commissioned
one, I am based in the Detroit area but I also travel. I am currently developing a more efficient switch
mode power supply for the 4 and 6k's. COOL NEW FORUM! normandruce.com
Moved and edited by Mattia.