I would call Krell. It could be an indicator of something ready to go bad. Usually a ! Means an exception, could be in the firmware.
Exclamation Mark Showing on Krell S-300i LCD from time to time.
Hi everyone, my S-300i has been showing this exclamation mark ! on the LCD screen once in a while. I can't exactly make sense of it. The amp is working fine but I am just curious about what the ! mark is about. Googled but can't find any information about it.
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