I have a jl audio slash 500/1 series amp, and it keeps blowing the fuse. am i using the right one? which one should i be using?

how do you have the speakers wired to the amp.

They should be wired in series (to arrive at 4ohms) and bridged at the amp.

I've had similar problems, usually for me it ends up being a bad ground.

I had this same issue when I moved the Amp from one car to another.

I did not use the required 4 AWG wire for the Power connection. In my original car I had.

Replaced it and with the correct AWG and it the problem went away.


So check the Gauge wire your using. I tried to be cheap and it was a pain.

500/1 is JL upper line, and the 500.1 is their lower line. They also have another line altogether that is under a different brand name.

Yes it possible that the inputs have been damaged on the circuit board of the amp. If the amp has hi level inputs you could try running a speaker wire input to it and see if it works. You might try another pair of rca cables to.

well you can go a couple different directions. you can wire them parallel or in series. parallel will get you down to about 1.3 ohms at the amp and series will get you close to 4 ohms. you need an amplifier thats stable at either of those impedances. the lower the resistance (impedance) the more power your going to get to the subs. I manage an electronics store and specialize in mobile audio/video. we are a 'Signature JL Audio Dealer' so i like to say i know the product line very well. JL makes an amplifier that is stable from 1.5 to 4 ohms and will put out the same amount of power at any impedance in that range which is really nice. Its called their 'Slash Series' you are looking for a JL Audio 500/1 amplifier. Grab an 8 gauge amp kit (4 gauge would over do it) and wire 'em up. Enjoy!

The audio amplifier IC´s maybe are fried

The amplifier probably has shorted output transistors. If the amp only blows the fuse after remote voltage is applied, the damage may be minor. They generally blow two transistors. Sometimes that's all that needs to be replaced.

Let me know if you have any other questions.

There are no fuses inside the amp.

Are any of the lights lighting up on the amp?

If so, which ones?

You will need to have the amp bench tested at full load to see if there is a pending problem. It will need to see with speaker loading resistors, how much current the amp is drawing and at different frequencies. if the amp checks out with the proper current, at the rated output, have the speaker checked out. Good Luck