It's probably dc offset from your preamp. I've heard of this happening with bat preamps and solid state amps. I'd contact bat and see what they suggest. Good luck!
Krell ksa 100 shuts off
I got willed a KSA 100 amp. It runs for about 5 songs before you hear a click and it shuts down. The green led on the power switch goes dark.
Then about ten minutes later it comes on again by itself.
Is this a thermal protection circuit kicking in or does this amp need service?
FYI I am using a balanced Audio VK3 and a Aria CD player hybrid.
Thanks.