Would it make sense and be safe to put power conditioner in front of PS Audio regenerator?

I wonder if audiophile grade outlet would help. No idea about wiring quality.

"I wonder if audiophile grade outlet would help."

Listening to your setup from 11:00PM to 4:00 AM while the grid is less strained will probably yield better results than buying more audiophool accessories.

Yeah, after midnight it is almost always better. Problem is that you have to keep the volume down, though I can listen at moderate level at any time of the day, the building is built quite well.