I have high and low tone 6V horns from a 50's American vehicle in the mercedes.
When yu apply 12V to these things they are VERY VERY loud.....
Comparable to train horns in tone slightly quieter than a fire engine horn...

I don't have them hooked up, I have yet to figure out how to make case grounded horns work on a switched ground circuit...any suggestions?
but I know they are LOUD

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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