Right now it's 300 pounds sitting in a crate on a furniture dolly sitting on a hardwood floor. As Ralph said, it will be much quieter when the unit is on the cabinet and the cabinet is closed. It seems to run better every time that I turn it on. It's now gotten a bit of exercise.
It makes plenty of noise inside as you hear the refrigerant flow through the evaporators. I figure that's similar to the splashing drama of a washing machine or dishwasher.
This little monitor top was on the third floor of a large old house. I think it survived because it was too much work to remove. I'll try to test it tomorrow. It was cheap, I couldn't say no.
I had the hinge screws and the latch strike from another cabinet that had been scrapped. After cleaning the contacts, it runs fine. Cooling was very slow, it was getting better. I left it running. Hopefully, it and my house are fine when I return home. The door gasket is almost completely gone, so I taped the door shut.
I am not sure what year the foot pads began being produced I have a pile of them. I was trying to figure out how to protect the floor then noticed the box of foot pads.