Sounds like Pratt-Whitney. I would hate to have that thing crank up early in the morning! But then I think those Aqua-hots are obscenely loud. I've had a few of those parked next to us and laid awake all night listening to them roar on/off every 10 seconds. And folks complain that construction generators are loud.
I decided to replace my onan 7500 with a Powertech 15K. The Powertech was only slightly used (300 hours), and actually has a 20K head on it, but is breakered at 15K. It is powered by a Kubota 4 cylinder turbo engine. Runs amazing!!
I cant see myself running out of power in any situation now.