Hello!
About three weeks ago, my Krell KAV 400xi was sent to Krell for repair as one of the channels was producing quite a bit of static. When Krell diagnosed the unit, they said it was DOA and beyond repair, the unit was more than 15 years old? Anyway, Krell's service was great, they offered me a Vanguard for half the retail price! I was told they just needed to perform a burn-in and build a remote (the remote reminds me more of a metal brick)! Anyway, regarding burn-in, I have not noticed anything noteworthy after running it non-stop for about two weeks now. Additionally, I no longer need to wait an hour for the amp to warm up, it seems to give you it's best from the moment you power it on. I can tell you after owning 2 entry level Krell integrated amps now, this Vanguard sounds fantastic! Though not noted, if you do some digging, the Vanguard has the ibias feature and does not run hot at all compared to my now dead KAV. The unit does have two fans that are not audible. I would like to suggest you offer the Vanguard series entry level Krell's due to their excellent sound quality, (class A) plus it's great looks and build quality (made in the USA). The price may bring in additional customers and offer a path to upgrade into the higher end Krell line over time.
grm