I want a HUGE set of air horns on my truck. Even considering a set of Nathan chimes if I can find one for a good price. The down side is the compressor and air tank. I could use a used SCUBA tank, but not sure of the volume I could get, and any size tank is fairly good sized. Two would definitely do it, but then I'd have to build a box in the bed, or the like.
Are there any good LOUD horns that you guys have/use that are either electric or air powered? Again, I want something that will at least approach a Nathan in performance. (for those who don't know what Nathans are, they are the ones from railroad locomotives)
I want good suggestions, as I don't want to be spending $$$ trying different horns or different combinations. Trouble is, there aren't many places that have these hooked up where you can test blow them.
TIA
Steve