Quote:
Originally Posted by 2x4
Can you elaborate a bit on it? I saw that car audio 101 stickied thread but I didn't see anything about capacitors.
I haven't heard of hush mat, and I thought both rattling and noise were related. Isn't the reason you get noise in cars due to the weight of the parts shaking at a different frequency than the sub itself? I thought the way dynamat worked was by just counteracting this by adding weight to them and changing that frequency. So then wouldn't different brands accomplish the same since it's just about the mass and not the material?
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Capacitors
Before I get into this I just want to say for most of the systems I have seen, and for what the stock alternator is capable of putting out. NO ONE will even need to worry about running one of these. That being said they DO reduce or omit light dimming, but they are not a fix more like a band aid. What a capacitor dose is stores a charge of power that can be depleted very quickly, this allows some of the strain to be taken off the factory charging system. But the cap still have to be recharged over and over again. This in turn may cause damage to your charging system over time. Do not feel bad if you have run one before as even I have at one time. So if your lights do dim a lot it might be time to look for a new alternator and or a second battery that would be mounted in the trunk. The only time you will have to worry about this happening is if you are running over 1000 rms all the time.
Hush mat is a foam rather than something that just sticks to the surface like dynamat. Dynamat keeps things from moving which cause vibration. Where as a foam material usually pretty thick absorbs the sound that is transmitted through the metal.