I have a LaPlante compressor (Now Kellogg-American).
It's the "go big or go home" model.
Three cylinder single stage, 60 gallon, 7.5HP, 155PSI, 35CFM
Multiple filters and dryers.
It will run an air sander, impact gun or HVLP gun just about constantly.
I also have another old Air force rotary compressor on a trailer.
These were fight line compressors, to start planes.
250CFM @ 150PSI if I remember right.
My big portable is a twin cylinder construction style compressor
My small portable is a Milwaukee, works great and is battery powered.
Before moving 1,750 miles I had two Polar Air (formerly Eaton Compressor) compressors, one in each out building. The large barn had an 80 gallon tank with a 7.5 HP (running) TEFC motor with magnetic starter that would operate from a 50 amp breaker. The pump was V4, dual stage with both interstage and after coolers. With 4 pole, 1,800 RPM motor and pump speed aroung 650 RPM it was quite quiet. Excellent compressor.
The small barn had a 60 gallon Polar Air 5 HP (running) OFDP motor driving a 2 cylinder two stage pump which was one bank of the V4 pump. It did not have a magnetic starter and, IIRC, operated on a 40 Amp breaker. The motor was 4 pole, 1,800 RPM and the pump speed was about 750 RPM. It too was quiet quiet.
Having sold the farm, all my equipment, and built a new house with attached RV Garage/shop, I had planned to buy another 60 gallon, 5 HP Polar Air unit like I had in the small barn but have learned that Polar Air no longer makes a 60 gallon, 5 HP compressor with a 4 pole 1,800 RPM motor. Worse, I have not been able to find a 60 gallon compressor with 1,800 RPM 5 HP motor from any manufacturer. I do not have room in the new shop for an 80 gallon unit and will not buy any compressor with a 3,600 RPM motor due to excessive noise.
FWIW, the Dayton, Ohio manufacturer that sells Polar Air compressors now manufactures compressors for multiple other sellers, including Northern Tool, etc. Before buying my two Polar Air compressors I visited their plant and established relationships with sales, service, manufaacturing and parts folks but this was nearly 15 years ago and I am not over 1,700 miles away.
Compressor prices, like everything else have skyrocketed post Biden and I cannot justify the current cost of an 80 gallon, 1,800 RPM unit, even if I had space for one.
Decisions, decisions....