You misunderstood what I said. It didn’t sound good but for about 5 seconds, it ran the tank out of air in 10-15. The noise it made from 180 psi to 140 would probably piss some people off, including me because it just sounded horrible.
Oh and to the OP, I wouldn’t blow over 130-140 (150 MAX) to that horn. You will VERY QUICKLY wear the diaphragms and nozzles in the power chambers. Leslies don’t like a ton of pressure.
Well does he want to sell it? My Leslie is on a Prime manifold and I want it to be authentic. If he doesn’t, I’ll gladly mail him my Prime as a trade to hang in his garage lol