Question about Jl Audio 300/4 Car Audio Amplifier

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Scratchy single channel on amp

I have a 300/4 and rewired the whole trucks sound system. well when i hooked everything back up it sounded great. then about a week later i turned on the stereo and there was a scratchy or static type noise coming out of one of the speakers. I tried moving around and switching the speaker wires and nothing seemed to work. so i just disconnected the wires to that channel. does anyone have any ideas on what this could be?? thanks for all your help


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Re: scratchy single channel on amp

I had the same amp! It is the JL 300/4 and one of the chanels came in really fuzzy. It sounded as if the the wires were touching during my installation. I called JL and a JL authorized dealer it would have costed me 190 dollars total to get the amp fixed. Instead I opened up the amp to see if anything looked out of the ordinary. When you open the amp, see if the green fuse looking things are aligned. If they are not aligned then straighten them out. I think they had gotten out of place from being dropped becaue I baught my amp used. My amp works perfectly now!

This is no joke man, I did this just yesterday and was really excited to save 190 bucks. I'm not a technical guy or anything all I know is the green things are located behind the out puts inside the amp.

Posted on Mar 06, 2008

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