horn problem

I can't seem to get my horn working correctly. When I hit the button I just get a barely audible, wimpy sounding beep, not a good, loud blast. I tried different horns, checked to make sure it had a good ground, but it still doesn't work right. Any suggestions? Probably turn out to be something very simple.

Tune-up

Try a search in the 47-54 forum. There's a couple good posts on tuning up a horn.

I have a 94 subaru impreza and the horn is not working but I can't find the horn relay. I have checked the body diagram but there is no horn relay. Is there anyone knows about how to solve this problem?
Please help me also..

Using a DC voltmeter have somebody push the horn button and check to see if you have proper voltage. It should be either 6VDC or 12VDC. If you have the correct amount of voltage it is either the horn or the ground. If you don't have correct voltage check the input side of the horn relay for voltage. If it is still bad there check it at the firewall by unplugging the harness then check the steering column harness and lastly check to see if the fuse holder is good.