In the diagram both capacitors have their ground terminals wired together but you could also ground them independently.
#CAPACITOR FOR CAR AUDIO HOW TO#
Here's how to wire two capacitors in a system. To learn more about how car audio capacitors work click here. This keeps any cable losses to a minimum. Ideally the power capacitor should be as close as possible The downside of this type of connection is you don't know if the power capacitor fails since the amplifier will continue to work with or without a working power capacitor. The power capacitor acts like a small battery (power storage) so it is connected as shown in the diagram. This will cause your amplifier's power supply to be cut off.
Note that the two terminals do not both connect to the +12 volt power wire. NOTE: If you have a third smaller terminal it is probably the remote turn on for a digital display. With the car audio amplifier +12 volts terminal. The positive terminal is connected "in-line" power capacitor or Stiffening™ capacitor). /y282845/emoticons/ is often a lot of confusion on how to wire a car audio capacitor If you design your system for the current you intend on actually drawing, you can save quite a bit of money. A lot of people don't realize that you will not be drawing a constant 270+ amps so there is not really any need for a HO alternator unless you play test tones for long periods of time. If you want to maintain adequate current for your amps and have voltage above 13V, you need a good AGM battery and proper wiring, along with 20-50% more charging capacity than your maximum current draw. If you want to maintain voltage in excess of 13-14.4V, you will need a high output alternator. When you factor in the price of a small AGM battery verses a large capacitor like a BattCap or PowerCore (Phoenix Gold), it doesn't make any sense to buy a capacitor anymore. Even a small AGM battery has several times the capacity of even the largest capacitor. When Absorbed Glass Mat batteries became cheaper around the early 2000's, there was not much use for capacitors anymore. Phoenix Gold, Stinger, BattCap, and several other manufactures made huge capacity "capacitors" that were more like a hybrid between a capacitor and an AGM battery.
When you have a lack of charging current, insufficient wiring, lack of storage capacity (battery), or a combination of any of these - you have a voltage drop.Ī cheap and easy fix for a weak system was a 1 -2 Farad cap. Not the huge mega watt amps of today (1500++) Most of the charging systems were using generators/alternators of 45-95 amps. Most of these installs consisted of amps in the 250 - 1000 watts RMS range. Here is where a lot of the confusion lies.īack in the late 80's through the early 2000's, a lot of shops and individuals alike used caps as a "band-aid" fix for voltage drops.
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