Try swapping the tubes between the two monos, this way you can determine if the tubes are to blame. No one likes to have a problem with their system, but what's even more frustrating is the inability to diagnosis the problem. In your case, I hope it's the tubes because that is a problem easily remedied without sending the amps to AR.
Mono Amp Problem Help me
I have Audio Research VTM200 MONO and used for 1 year.
3 months ago the left speakers sound louder and the focus went to the left. I was changing around all my component(cable,PC,IC,preamp,speakers,player,and speaker cable) and found that the problem was in my amp.When i changed my left amp to the right side the sound was focus in the right speakers,but the left speakers was singing also,even though not louder as the right speakers. Has anyone had same experience with your mono ?? How to resolve ??
3 months ago the left speakers sound louder and the focus went to the left. I was changing around all my component(cable,PC,IC,preamp,speakers,player,and speaker cable) and found that the problem was in my amp.When i changed my left amp to the right side the sound was focus in the right speakers,but the left speakers was singing also,even though not louder as the right speakers. Has anyone had same experience with your mono ?? How to resolve ??