KPA500 "bypassed" when off?

Ken WR7D

I have a new to me KPA500/KAT500 combo to go along with my K3S. I understand the standby and operate modes of the amp and the different power levels for each that the K3S can use. My question is will the KPA500 be bypassed when it is off and still use the KAT500 and the "standby" power setting on the K3S? I couldn't find anything in the manuals that mentioned this specifically. I did find one post that seems to indicate this, but it wasn't absolutely clear.

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