Krell updates are not inexpensive. IMHO, the KAV series are not Krell's best efforts. I think you would be better off moving up the line for a better platform. Ideally you might find such unit(s) that have alreeady been recently updated.
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Should I Update My Krell KAV 250a ?
I bought this when it came out and it has always sounded great in my system. I know that there was one fuse replacement recall and some further factory updates. Should I send it back to Krell for the updates? I would be so bummed if I had these done and it didn’t sound as good in my system .