[jyl]

I don’t think there is any general prohibition on receptacles inside cabinets in the US, though maybe local codes could have something. The NEC has some requirements for receptacle location in the cabinet, type of conductor, etc.

Jeff, true, I don’t in any way “need” the sound dampening. Not like you NEED the Aeron chair! It’s just a fun idea.

The appliances in there are going to be things like mixer, blender, food processor. Things that don’t generate much heat or moisture.

It might be handy to run other stuff in there - e.g. to sous vide a pot of ribs for 14 hours without cluttering up my counters - but I didn’t design the cabinets with that in mind, there is no airflow. I suppose it’s not impossible to add forced airflow after the fact but we’ll see if there’s a need.