Biasing This amp is easy and Dangerous. I have 30 years experience in electrical/electronics. This baby can bite, my hand hurt for 2 days. I think it is 575 Volts inside the case. Be sure you know how to use a multimeter, and you have good 1000V leads. A nice Fluke or equiv. If you are not sure, send your amp in to ARC and they will do it for you. I sent mine in for new tubes and they found a problem in the turn on circuit and fixed it for free.
Call ARC first and they will tell you how to ship to them.
Jim G.
Call ARC first and they will tell you how to ship to them.
Jim G.