Channel 1 of my K2 drives a sub (this is a home theater environment). Last night the channel got shorted during program material. There was a large spark at the speaker terminals (where two banana plugs touched) and the K2 died.
I unplugged everything from the amp and replaced the main fuse (which had blown). Now when I turn the amp on there is a click, then all of the channel 1 lights light up for a split second and then the amp turns off. After some time I can repeat the process, but the amp will not stay on. (this is still with nothing connected at the inputs or outputs)
I assume there is some internal damage to the channel, but is there anything else I should try before sending to crown for repair? (unfortunately its way out of warranty).