Tim,
The matched horns have both high and low tones, that together have an awesome sound. I mounted an NOS set on my 1950 COE just as MT has pictured,using the enclosed instructions. One horn has an "H" stamped on the body and the other an 'L". I assume these stand for high and low, so I think it is OK to refer to them as High-Low horns. The correct location shown in the picture is sort of important as the kit comes with wires to connect to the relay and directly to the positive post on the starter. The wires have just enough length to go in the stock location and if you customize the location as the previous owner did on Jim K's truck you would have to use your own wires.
Kent
