Hello, first post here

I recently acquired a second-hand ADI-2 (The original one without USB, and also not the current fs version).
It appears to be most recent hardware/firmware revision and seems to work fine.

It looks like relays are at play during the power-on sequence, and no noticeable noise can be hear on the output.
The power-off sequence (unplug) in different though, with no controlled muting and a big noise on the output.

Is this behavior normal, or is this the sign of some component needing replacement?

Thanks you
Thomas