I think the people in and around KINKI are really the best when it comes to customer service. Todd is a very patient and GREAT repair technician and has always been very patient and kind with me when I had a product repair/fix issue. (I had problems with a DAC transport and everybody in the Kinki /Jays audio system were just spectacular in their help and support. I screwed up an op amp upgrade on the Kinki EXM + 1 and Todd was just wonderful in his responsiveness and help fixing the problem.
I like the KInki integrated and all of my friends who hear it want to buy it from me.
I am sorry you are having problems with the amp.
What you describe has not been my experience.
Best wishes always
Charlie