It was on my previous boat and didn't put out as many amps as the screamers but was very quiet. I don't know if Fourwinds is still around. And I just heard from the guy I sold that boat to that it quit on him last week. That's after 20 years so not a big surprise. Probably needs new brushes. I don't know anything about others except how loud they are. Couldn't live with some of them.