Chess, a bar would be the simplest solution but there are a couple of issues.
Initially I was leaving the ADA1500’s front power switch on and only using the power switch in the back. Powering up in this case caused high in-rush … I think the in-rush limiter is engaged when the amp is not triggered and removed when it is (front power switch is the trigger when nothing is plugged into the trigger jack). On power down if you don’t trigger off first the ada may output a loud squeally noise to your speakers (mojo’s choking squirrel).
Just an FYI …

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