I just hooked mine up to the duct work now that it's in place and it moves a lot of air, especially when cranked up. I suspect that most of the time, I'll be able to run it at about 5500 on the display and only crank it up to 7200 when milling on the J/P. I will not suggest that it's quiet when cranked up, but it's not the "big roar" that my previous 2hp Oneida made. It's a different sound for sure.