ARC VS60 bias


I just rec'd my new ARC VS60 amp and I think it sounds quite good out of the box. The document says the burn in period is like 600hours!

My question is the bias. The amp out of the box shows 65ma. The manual says 60ma. This is my 1st tube stereo amp so I am looking for veterans advice on where to set it. I suppose the tubes will last a bit longer at 60ma and I should use my ear to judge...
jazzgene

Showing 3 responses by bjesien

I think you should carefully check all of your cable connections. You should not hear any buzzing sounds with this amp. Are all interconnects clean and firmly secured?
What is the efficiency of your speakers? I've used similar ARC amps with 87-94 db speakers and never had humming and buzzing except when it was in the music or connections were bad.