Audio Research service

ARC service is as good as it gets.

In addition to my previous response, you probably will never need service. As it states in the owners manual
"this amp will bring musically satisfing results as long as you care to own it". Enough said.

I had an experience just last week, while after some tube
rolling and tweeking my VT130, the amp blew a screen resistor. I called Lenoard at ARC and even though it was totally my fault, I had parts within 2 days at no cost to me. Now if thats not service, what is? Also, this amp has funtioned flawlessly for 8 years until I messed with it, so how's that for ARC reliability! Lessons learned; If it ain't
broke, don't fix it!