A stiffening capacitor is an extremely large value electrolytic capacitor. Capacitors have the ability (capacity) to store a charge on their "plates". The larger the capacitance, measured in units of Farad, the greater the charge a capacitor can store for a given voltage. Most automotive capacitors can store a charge at 10 to 20 volts and are rated from about .5 Farad up to 50.0 Farad or even more. Capacitors have an extremely low internal resistance to current flow, much lower than that of a battery. Capacitors can therefore charge and discharge power much faster than a battery can.
This power "reservoir" in the capacitor only works to a point. If the power draw from the amplifier or multiple amplifiers demands so much power that the alternator can't bring the charging system and capacitor back up between bass transients, then reduced bass response and flickering lights will again occur. Adding more capacitance may help, but an alternator with a higher current rating would be a better solution.
Wherever you're on the road with ATV, motorcycle, snowmobile and any vehicle, IT is extremely reliable and long last Stiffening Power Capacitor you can rely on.
Technical Details:
3.5 Farad Capacitor
Digital Red 3 Digit Voltage Display
Chrome Plated Battery Post
Lightning LED
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Package Content:
1x Audiotek AT-3.5