I suggest you call Pass Labs again and ask them how you can check to see if the amps are biased to pure class A as they should be. I am also not a DIY person so I suggest you take the amps to a local technician and request the amps bias be checked. Pass Labs should be able to explain how to do this (I hope).
You have to ask Pass Labs if the amps are not bias correctly, can the local technician set them correctly or do they need to be returned to the factory.
Do you have a local Pass Labs retailer who can help. A local Pass Labs retailer might be the best option.
You have to ask Pass Labs if the amps are not bias correctly, can the local technician set them correctly or do they need to be returned to the factory.
Do you have a local Pass Labs retailer who can help. A local Pass Labs retailer might be the best option.