What we sell?Audiobank 3.5 Farad Capacitor Car Audio 3500 Watts Power 12V Car
What is a capacitor?Large Wattage Car Audio SystemsLarge wattage car stereo
amplifiers draw large amounts of current from your vehicle's electrical system.
Larger, multiple amp systems are even a bigger drain on your electrical system,
in many cases depleting the system's current capacity thereby lowering the
voltage far enough that it cannot properly supply the amplifier(s). Adding
capacitors can help solve this problem.
Adding CapacitorsCapacitors store electricity as instant power available for
your amplifier. If the amplifier draws more current than is available from the
electrical system directly, the capacitor covers the difference up to its
stored capacity. The battery is not overloaded and the car voltage remains
steady. The capacitor will smooth out the peaks in current draw from your
amplifier during peaks in the music. The capacitor will help ensure your
music does not go flat, but has the dynamic quality you love.
Use CautionA capacitor's stored current can give quite a shock if mishandled
when it is fully loaded. Follow directions closely and ensure the cap is
drained before making contact. A resistor or light bulb can be wired across the
cap's terminals to allow the capacitor to discharge slowly and safely.
Keep in mind; capacitors do not make your car audio system sound louder. What
they do is improve the performance of the system by reducing distortion caused
by sudden voltage drops
Voltage StabilityCapacitors offer some small amount of protection for
amplifiers from potentially damaging under-voltage surges over time if you play
loud music regularly. But most of the reason for adding capacitors is to keep
your car voltage stable. Before considering capacitors, ensure you have
adequate battery and alternator power for the total amperage of your audio
system, and check your wiring to be sure you have adequate sized wire. Voltage
loss may occur if the gauge is not adequate. If your car’s charging system does
not supply enough constant current for the combined RMS rating of your
amplifiers there is no amount of capacitors that will keep your electrical
system from having low voltage issues when run at RMS output.
Sizing CapsCapacitors come in different sizes typically starting with 1 Farad.
The general rule is to add 1 Farad of capacitance for every 1000 watts RMS of
system power. Note that it does not hurt to use more capacitance than this rule
and many systems use 2 or 3 Farads per 1000 watts RMS.
Mount your capacitors as close to the subwoofer amplifiers as possible to
shorten the path required for the surge power. Follow the directions for
mounting and wiring closely to ensure safe and efficient use. Keep in mind that
continued voltage drops that last more than a second or two might not be helped
by the addition of a capacitor. In these instances it may be better to add
additional batteries to the system or upgrade the vehicle's alternator.
So consider adding capacitors to your next large audio system before the
lights start dimming!
How does it work?All capacitors consist of two "plates", separated by an
insulator called the "dielectric". Each plate has an external connector.
Connected to a source of voltage, electrons are forced onto one plate, and off
of the other plate. When the capacitor is fully charged, no more electrons will
flow in or out. Disconnected from the source of voltage, the charge will remain
between the plates, and the voltage can be measured between the capacitors
terminals with a volt meter. A capacitor can store a charge for a very long
The capacitor is connected to the positive power line to the amplifier, and
then grounded to the vehicle chassis. When initially connected, the capacitor
will very quickly charge up to the voltage of the vehicle's battery. So
quickly, in fact, that a large spark will occur unless a small resistance is
used to slow the rate of charge. More on this in a moment.
Low frequency causes the output transistors in any audio amplifier to remain
on and flowing current to the speakers for a longer period than midrange or
high frequencies. Low frequency therefore creates the greatest current draw in
any audio system. As the source of low frequency in music is usually a drum or
bass guitar, the low frequency is mostly in short bursts, or "transients". So
subwoofer amplifiers generally draw the most power from an automotive charging
When a motor vehicle is running, the power for the electrical system comes
from the alternator. Some very high power subwoofer amplifiers are capable of
drawing more power from a vehicle's charging system than the alternator can
produce. At very high output levels, this can cause the bass "hits" to begin to
lose volume, punch, and overall clarity, and can cause lights to dim or
flicker. When the amplifier tries to draw more power than the alternator can
produce, the voltage in the power line to the amplifier (and everywhere else in
the electrical system for that matter) begins to drop. As the voltage in the
capacitor is still stable, the drop in voltage in the line will cause the
capacitor to push charge onto the power line. This bolsters or "stiffens" the
voltage in the electrical system until the transient bass "hit" passes. At that
time the demand by the amplifier drops, the alternator brings the voltage back
up, and the capacitor recovers its charge. It is then ready for the next bass
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
Technical Details:3.5 Farad CapacitorDigital Red 3 Digit Voltage DisplayChrome
Plated Battery PostLightning LED
Package Content:1. AB-3.5 Farad Cap
100% Genuine Product & Accessories:Audio Watt Store makes it easy to put the
finishing touches on your mobile audio installation. Your system will sound and
look its best when you use the right car audio installation accessories. We
carry the radio dash mounting kits and wiring harnesses you need for upgraded
head units, 12V relays and sockets for your add-ons, antennas, and line output
converters and controllers. Cable, wire, and connectors are extremely important
to your installation's success, and Audio Watt Store provides options that
support every example of connectivity. Drive smarter. Whether you love road
trips with the family, need better car connectivity, or want the latest safety
and convenience technology, you can shop Audio Watt Store for car accessories
such as dash kits, Bluetooth/hands-free car kits, radar detector parts, and
more. Keep the whole crew happy with car entertainment add-ons like video,
gaming and satellite radio. Stay connected with in-car Wi-Fi. And improve your
driving habits with a car diagnostic tool, Breathalyzer, or other security
device. Upgrade your car audio. Listen to music more clearly with the right car
audio setup. Car stereo installation involves a variety of components, from
receivers and speakers to antenna kits, integration kits and more. Audio Watt
store can help you accessorize with mounts, adaptors, spacers and cables, so
you can get the sound you want while you drive.
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