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Wiring, Electrical & Installation
Amp shutting off for a couple seconds at a time at mid-high volume
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<blockquote data-quote="ibcurly" data-source="post: 8351284" data-attributes="member: 664647"><p>Warning: Lengthy explanations ahead.</p><p></p><p>2001 Pontiac Grand Prix</p><p></p><p>My system was installed by best buy, i lack the know-how to do it myself so sorry if i need a lot of explaining.</p><p></p><p>I have a JL Audio 250/1 Amp with a Diamond 12 inch ported sub. I do not know the specs of the sub because i got it as a present from a friend. (It was his old setup and he knows alot about this stuff so i assume the amp and sub are fully compatible)</p><p></p><p>After best buy installed it, the setup has been working flawlessly for over 2 years (apart from needing a battery replacement over a year ago, but the previous battery was the original one, so i think its understandable)</p><p></p><p><strong>Starting about a month ago, i noticed my sub will cut out for a couple seconds at a time when i have it at mid to high volume. I took a look at the amp while this was happening and i saw that the LED light for the amp would turn off for the couple of seconds.</strong></p><p></p><p>(The problem happens whether i have it running for a long time or if i have just started up the car, so its not overheating)</p><p></p><p>I looked online for the manual to the amp and it stated:</p><p></p><p></p><p>Then in appendix D...</p><p></p><p></p><p>So i checked my grounding wires, they are both extremely tight and attached to metal where the paint has been scraped off.</p><p></p><p>Since the sub plays perfectly well when the volume was below the certain volume it takes for a big sub hit to cut out the amp, i figured it was an electrical problem and needed a capacitor as the manual stated.</p><p></p><p>So i took it to best buy and had the guy check it out just to see what he would say.</p><p></p><p>He said he checked the fuses and wiring and it was all good.</p><p></p><p>He checked the voltage of the amp, and he said it wasnt dropping below the threshold. (which is troubling to me)</p><p></p><p>He said he hooked up another sub with the same wiring and blasted it, and he said that sub worked fine.</p><p></p><p>His conclusion was that my sub must be dying.</p><p></p><p>He explained that as the sub hits big, something inside it might be loose causing it to shut off.</p><p></p><p>I read somewhere that a sub short circuit could cause an amp to go into protect mode, so this might make sense? but...</p><p></p><p>My worries: I think the amp could be getting insufficient power for such a brief moment that he didn't detect it (As the manual states this could happen) And that the sub he hooked up to test just didnt pull enough power to shut down the amp as my sub does. Which would mean i just need a capacitor.</p><p></p><p>My question:</p><p></p><p><strong>Do you guys think my sub is faulty or is my amp starving for power?</strong></p><p></p><p>I will do my best to give any information needed! Thank you so much for any help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</p><p></p><p>I just don't want to waste money on something that isn't broken and wont fix the problem.</p></blockquote><p></p>
[QUOTE="ibcurly, post: 8351284, member: 664647"] Warning: Lengthy explanations ahead. 2001 Pontiac Grand Prix My system was installed by best buy, i lack the know-how to do it myself so sorry if i need a lot of explaining. I have a JL Audio 250/1 Amp with a Diamond 12 inch ported sub. I do not know the specs of the sub because i got it as a present from a friend. (It was his old setup and he knows alot about this stuff so i assume the amp and sub are fully compatible) After best buy installed it, the setup has been working flawlessly for over 2 years (apart from needing a battery replacement over a year ago, but the previous battery was the original one, so i think its understandable) [B]Starting about a month ago, i noticed my sub will cut out for a couple seconds at a time when i have it at mid to high volume. I took a look at the amp while this was happening and i saw that the LED light for the amp would turn off for the couple of seconds.[/B] (The problem happens whether i have it running for a long time or if i have just started up the car, so its not overheating) I looked online for the manual to the amp and it stated: Then in appendix D... So i checked my grounding wires, they are both extremely tight and attached to metal where the paint has been scraped off. Since the sub plays perfectly well when the volume was below the certain volume it takes for a big sub hit to cut out the amp, i figured it was an electrical problem and needed a capacitor as the manual stated. So i took it to best buy and had the guy check it out just to see what he would say. He said he checked the fuses and wiring and it was all good. He checked the voltage of the amp, and he said it wasnt dropping below the threshold. (which is troubling to me) He said he hooked up another sub with the same wiring and blasted it, and he said that sub worked fine. His conclusion was that my sub must be dying. He explained that as the sub hits big, something inside it might be loose causing it to shut off. I read somewhere that a sub short circuit could cause an amp to go into protect mode, so this might make sense? but... My worries: I think the amp could be getting insufficient power for such a brief moment that he didn't detect it (As the manual states this could happen) And that the sub he hooked up to test just didnt pull enough power to shut down the amp as my sub does. Which would mean i just need a capacitor. My question: [B]Do you guys think my sub is faulty or is my amp starving for power?[/B] I will do my best to give any information needed! Thank you so much for any help [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] I just don't want to waste money on something that isn't broken and wont fix the problem. [/QUOTE]
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Amp shutting off for a couple seconds at a time at mid-high volume
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