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Old 12-07-2007, 06:08 AM   #1
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Default Strange Lightning Audio amp channel switching

I have a very strange amplifier. I'll give you the model number soon, but this is the closest-looking amp I've found so far:
[url]http://ravenwingperformance.homestead.com/Audio/Lightning_Audio_BOLT_AMPS.html[/ur]
Go to the 450W. That'* what mine looks like, but with black instead of yellow. I think it'* actually a pretty nice looking amp. A bit on the cheap side, though.

Almost like clockwork, about 2 minutes or less into being on, the amp will suddenly start channeling sound to the left speaker while letting the right just kind of sound really blown. However, all I have to do then is turn the radio off, and immediately after that, I can turn it on, and everything is back to normal. Really, it'* like nothing happened. I no longer use it, so if it'* bad for the speakers, at least it'* not being used any longer.

The speakers I have are these:
http://www.crutchfield.com/*-sLJIblt...spx?I=1089613I
I'm very upset by this price, btw. They were $150, and I got an employee discount to take them down to $80. How does Crutchfield do it?

Anyway, I'd like to find out what makes the amp send a lot of audio to the left speaker and cut out the right one. It'* just a matter of turning it off and then turning it on, and everything is back to normal. What exactly happens when the right speaker just puts out a little audio, and it sounds like the cone is just shot?

Also, this amp was relatively free. I bought 3 sets of amp, sub, and wiring kit for $20 each on sale. Then, I sold the amps & subs so that I have 1 left at about $-20. I still wouldn't mind continuing to use it, though.
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Old 12-07-2007, 11:10 PM   #2
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that name brand anp is pure junk.. sell it or peel out over it and make a video cause thats all its worth.. the amp is not strong enough to power the speakers so there for it is giving all its power to the one side and and pulling power from the other.. change the amp and gaurentee the problem will never come back...
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Old 12-08-2007, 02:14 AM   #3
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sounds like the right channel is blown. You could check your power and grounds and make sure theyre taking the current, and you can check your speakers to make sure they are the resistance they should be. It sounds like the amp is just dead.
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Old 12-08-2007, 03:34 AM   #4
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Just to clarify about power issues, I have the amp hooked directly to my rear battery with both fuses (one on the power wire & one on the amp) that came from the factory. I'll have a look at those too.
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Old 12-09-2007, 12:24 AM   #5
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i dont believe its a fuse.. it has to be a channel on your amp thats bad..
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Old 12-10-2007, 02:20 AM   #6
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Make sure that the speakers terminals aren't touching metal (in the rear deck or were ever they are mounted) and shorting.

I've fixed this mistake made by other installers a million times and this will cause the problem your discribing.

Good luck,
Dutch
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Old 12-10-2007, 02:59 AM   #7
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Yeah, that seems to need to be the cause of it all. However, I actually haven't found that the speaker moves around. I'll try holding down the speaker and seeing if it does anything funky. I haven't yet tried that. Thanks!
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Old 12-11-2007, 12:23 AM   #8
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I'm not saying that the speaker is necessarily moving around or that its not fastened securily.

What I'm trying to suggest is that sometimes when people install speakers they don't take note to how close the terminals are to the opening in the metal of the door or rear deck.
If the speaker terminals touch metal they short, hence cutting in and out etc.

It could also be the input or the output side of the amp. You could try borrowing an amp to try in place of yours and see if it does the same thing.

Just throwing out ideas,
Dutch
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Old 12-11-2007, 12:53 AM   #9
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I was hoping to get a stronger amp for the rear speakers anyway and then move this to the front speakers. It is rated at 50W RMS per channel, but the fronts are 55W RMS each. I love Infinity Kappa speakers! There'* a Blaupunkt that shoves out ~80W RMS per channel for $88 from time to time at Fry'* Electronics. I'll see if I can pick that up. Until then, I'll let you know if the speakers can move.
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