Re: Adjusting 32's horns

Posted by BigKev On 2010/12/31 0:57:27

Recheck those horns with an actual car battery. I have a 7amp 12v bench power supply, and using this I thought my horns were totally bad as I had no sound at all, and it tripped the fault on the power supply. Then I tried them with a car battery and a 20 amp inline fuse, and they worked great. Just had to adjust the tone because of the difference between the original 6v application, and the 12v I am running in the car.

I think you will find they pull significantly more than 1.5amps, hence the reason most horns use a relay.