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<blockquote data-quote="JoeM" data-source="post: 147674" data-attributes="member: 546649">The average car audio system (ex running 85w/channel front stage) will not need a cap. The main reason people put them in is to power their sub amp. Take, for example a honda. Any honda with a fairly weak alternator. (OK, what the f-ck, my &#039;89 Accord).Now, I have no system in that car, but if I was to swap the one from my Spec V, this would be the scenario. I&#039;m sitting at a light. Listening to some tunes. I crank up the volume, even the aux bass control for the sub amp. The lights begin to dim heavily.Now, take the same scenario, but remove the sub. The lights will not dim. The reason is the 85x4 amp doesn&#039;t put as much strain in individual intervals as does the sub amp.Honestly, I have a cap, but I&#039;ll probably be removing mine, as my alternator puts out 115 amps in stock form, more than enough power for the system I have.All told, you generally want to put a cap on the most demanding amplifier in the car, 9/10 times the sub amp.Do they work? I dunno. I never used i tto correct a problem. I got mine dirt cheap, but I&#039;d rather not have it in this car as it really doesn&#039;t need it.A rewound alternator will always be more worthwhile than a capacitor. Most people just want the cool look of having one.</blockquote>

[QUOTE="JoeM, post: 147674, member: 546649"] The average car audio system (ex running 85w/channel front stage) will not need a cap. The main reason people put them in is to power their sub amp. Take, for example a honda. Any honda with a fairly weak alternator. (OK, what the f-ck, my '89 Accord). Now, I have no system in that car, but if I was to swap the one from my Spec V, this would be the scenario. I'm sitting at a light. Listening to some tunes. I crank up the volume, even the aux bass control for the sub amp. The lights begin to dim heavily. Now, take the same scenario, but remove the sub. The lights will not dim. The reason is the 85x4 amp doesn't put as much strain in individual intervals as does the sub amp. Honestly, I have a cap, but I'll probably be removing mine, as my alternator puts out 115 amps in stock form, more than enough power for the system I have. All told, you generally want to put a cap on the most demanding amplifier in the car, 9/10 times the sub amp. Do they work? I dunno. I never used i tto correct a problem. I got mine dirt cheap, but I'd rather not have it in this car as it really doesn't need it. A rewound alternator will always be more worthwhile than a capacitor. Most people just want the cool look of having one. [/QUOTE]

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