Blown Classe CAP-80

Matt,
The LSK389 which is an improved exact replacement for the 2SK389 can be obtained from Linear Integrated Systems. See the link below. On the webpage click JFET amplifiers/ duals/LSK389. Another alternative is to use closely matched pairs of 2SK170 which are plentiful (Mouser has them). The tech can get a bunch of them and gain match. They are less than a buck a piece in quantities.

How did you try to contact Classé ? I have contacted the factory many times over the years with technical questions and parts inquiries, and have always received a response in 24 hours or less. If you e-mail them at cservice@classeaudio.com you should get a reply within one business day.

[url]http://www.linearsystems.com/products.html[/url]

Glen

A good tech should have little difficulty locating a replacement for those transistors. Tech should match them and if this is a stereo amp, should replace the transistors in both channels even if only one side is bad.

I totally agree. Both JFet diff amps should be replaced in both channels.

Thanks, you all! I think it's time for a new tech!

Matt