My father is a believer in Speedair. He has a 15hp, 150 gal 3 stage, horizontal with an 80 gal, 2 stage, vertical on each side of it. One 80 is piped to the north wall of the shop and the other 80 is piped to the south. In the event of needing more air, the 150 can be valved to either side or they can all be valved together. You talk about some freakin' air. Now....these were put in a room of their own and double insulated with air control to keep them cool. Then 2 more 80 gals in the other building.
My little baby makes more of a "lug lug lug lug" sound. It is quite tolerable as me and the kids can have a conversation right next to it. If pipeless technology could follow wireless technology then I could have air in the other barn without running pipes. That would be nice.