All in all, we spent hundreds of hours combing through thousands of user reviews to put together a comprehensive list of the best capacitor for car audio on the market. We then delved into these capacitor for car audio further and put together detailed reviews so that you can easily pick the best capacitor for car audio for your needs.
Best capacitor for car audio
1. Sound Storm C352 3.5 Farad Car Capacitor for Energy Storage to Enhance Bass Demand from Audio System
Feature
Capacitance Tolerance: + / - 10%Working Voltage Range: 16 VDC
Surge: 24 V
Chrome Plated Posts
Mounting Brackets and Hardware Included
Dimensions: 11-9 / 16" (H) x 3-15 / 16" (D)
1 Year Warranty
Description
WHAT IS A CAPACITOR?
A capacitor is a passive (a component that consumes but does not produce energy) two terminal electrical component. In building a sound system for your car, you would want to use a capacitor for a couple of different reasons.
WHY DO I NEED ONE?
The main reason a capacitor is always recommend, is for power reserve. The capacitor stores energy and releases it very quickly to the amplifier(s). How does this help? Its very simple: Music is dynamic, no matter what type you listen to. The dynamics in musical content can vary from soft voices, and very quickly transition to thundering bass notes. These moments are where the benefit of having a capacitor is heard. The amplifier requires a constant amount of steady power to function efficiently and power the speakers. A capacitor will keep the power going to the amplifier consistent and stabilized, which means a better sounding system. IMPORTANT: The remote output of the head unit is connected to the remote turn on of the capacitor. The capacitor will not function if the remote wire is not connected to your head unit.
SPECIFICATIONS
1) 3 Digit, Super Bright Red LED Voltage Meter 2) Capacitance (microfarads): 3,500,000 3) Working voltage: 20VDC 4) Surge Voltage: 24 Volt 5) ESR : 0.00195 Ohm @ 120Hz, 25C 6) Capacitance tolerance: +/- 10% 7) Chrome Plated Posts 8) Dimensions: H 11-3/8 x D 3-15/16
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CHARGING THE CAPACITOR
First make sure that all the connections according to the diagrams in the instruction manual are correct. Pick up the cable coming from the POSITIVE (+) battery terminal. Place the supplied charging resistor between the end of this cable and the positive terminal of the capacitor. The capacitor will begin charging. Charging generally takes 5 to 60 seconds. During charging, the voltage shown in the 3 digit display will rise rapidly, then slow as it approaches the voltage of your vehicles battery. When fully charged, the display voltage will stop rising. If you have a voltmeter, you can first measure the voltage of your car battery. Then you will know with accuracy that the capacitor is fully charged. CAUTION!! During charging, the resistor will become hot. This is normal, but exercise caution during the charging process. After charging is complete, remove the resistor from the incoming positive cable, and IMEDIATELY connect it to the positive terminal of the capacitor.
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2. BOSS Audio Systems CAP8 - 8 Farad Car Capacitor For Energy Storage To Enhance Bass Demand From Audio System
Feature
3 Digit Super Bright Blue Digital LED Voltage DisplayAudible Warning Tone for Reverse Polarity, Voltage Overload and Low Battery Voltage.8 Farads with digital voltage display
Voltage Measurement Accurate to + / - 0.1 VDC
Automatic Sleep Status When Volume Is Low Or There Is No Voltage Variation Present
Capacitance: 8,000,000, Working Voltage: 16 VDC, Surge Voltage: 24 VDC
Equivalent Series Resistance: 0.015 Ohm @ 100 Hz / 25C, Capacitance Tolerance: + / - 10%
Dimensions: 9 x 6 x 2, Unit Weight: 5.3 Lbs
1 Year Warranty
Description
What is a Capacitor?
A capacitor is a passive (it consumes, but does not produce, energy) two-terminal electrical component. In building a sound system for your car, you would want to use a capacitor for a couple of different reasons.
Why Do I Need One?
The main reason a capacitor is always recommended is for power reserve. The capacitor stores energy and releases it very quickly to the amplifier(s).
How Does This Help?
Music is dynamic, no matter what type you listen to, and the dynamics can vary quickly, going from soft voices to thundering bass notes. These moments are where the benefit of having a capacitor is heard. The amplifier requires a constant amount of steady power to function efficiently and power the speakers. A capacitor will keep the power going to the amplifier consistent and stabilized, which means a better-sounding system.
Important: The remote output of the head unit is connected to the remote turn on of the capacitor. The capacitor will not function if the remote wire is not connected to your head unit.
Specifications
| Model | 2 Farad | 3.5 Farad | 4 Farad | 8 Farad | 30 Farad | Color | Dimensions (L x W x H) |
|---|---|---|---|---|---|---|---|
| CAP2B | Black | 3" x 3" x 10.30" | |||||
| CAP3.5B | Black | 4" x 4" x 11.37" | |||||
| CAP3.5S | Silver | 4" x 4" x 11.37" | |||||
| CAP4C | Chrome | 4" x 4" x 11.37" | |||||
| CAP8 | Black | 9" x 6" x 2" | |||||
| CAP30 | Black | 11.38" x 7.25" x 3" |
What's in the Box
- One pair of mounting brackets
- 2 ring terminals
- 2 spade terminals
- Mounting screws
- 1 resistor
- 1 Allen wrench
Instructions
- Installation
- Power up procedures
- Power down and removal
3. Power Acoustik PCX-30F 30-Farad Capacitor
Feature
12-16 DC Volts Operation UtilizingInternally Stacked Carbon-Foil CapacitorsDirect Connect 0 ga. Terminals & 4 ga. Reducers
Digital Voltage Meter with Polarity & Voltage Protection Alert Indicator
LED Accent Lighting
Satin Finish w/ Chrome Accents
4. 5.0 Farad Digital Power Capacitor - High-Performance Car Audio Accessory with Blue Digital Display, Voltage Readout, Over Voltage Protection, Mounting Hardware, DC 12-24V - Pyle PLCAPE50
Feature
SUPPORTS CAR AUDIO SYSTEM: A high-demand audio setup can often place extra demand on your car's electrical system. When you need power, especially for booming bass and soaring highs, this 5.0 farad Pyle capacitor will have it at the readyBLUE DIGITAL DISPLAY: It's got all you need to make sure your system sounds awesome and stays safe - a blue digital voltage readout to show you how much power is available. Looks great too, thanks to the blue LED lighting & the brushed aluminum case
SAFETY FEATURES: Equipped w/ electronic polarity protection circuit and an over-voltage protection circuit ensure maximum performance and reliability. Features capacitance 5%, 20-24 volt surge, 105oC w/ DC 12 to 24 volt
MOUNTING HARDWARE: The digital power capacitor includes mounting charging hardware, chrome-plated post kits, and 1 pair clear brackets for a better installation. Total size measures 8.86 H x 3.5 W
WORRY-FREE SHOPPING: With the Pyle PLCAPE50 5.0 Farad Digital Power Capacitor for Wireless Belt-Packs we are confident of the quality of our product, therefore, we offer a 30-day money-back guarantee no questions asked
5.0 Farad Digital Display Power Capacitor - Chrome Plated Post Kits - Aluminum Brushed Case
Capacitance 5%. 20-24 Volt Surge, 105oC - DC 12- 24 volt - Dimensions: 8.86''H 3.5''W
Blue Digital Display and blue LED flash - Electronic Polarity Protection Circuit
Strong Finishing For A Better Installation Result - Over Voltage Protection Circuit
1 Pair Clear Brackets Included - Includes Mounting Charging Hardware
5. BULLZ AUDIO 2200 Watt 12 Volt BCAP Digital Car Power 2.2 Farad Capacitor
Feature
Digital Voltage DisplayDoes not include regulator/resistor
2200 Watts
Low ESR
2.2 Farad Cap
6. Boss CPBK2 2 Farad Car Digital Voltage Capacitor Power Audio Cap+8 Ga Amp Kit
Feature
**Capacitor:**New **Boss CPBK2** 2 Farad Car Capacitor
Equivalent Series Resistance (ESR): 0.00195 Ohms @ 120 Hz @ 25 Degrees C
Low Level Input Voltage: 20 Volts
Remote Terminal Screw
7. Rockville RXC4D 4 Farad Digital Car Capacitor Blue LED Voltage Display Power Cap,Black
Feature
Rockville RXC4D 4 Farad Capacitor4 Farad/12 Volt Stiffening Capacitor with 24 Volt Surge Capacity
Lucite Encapsulated Display and Logic Circuitry.
Red LED Digital Voltage Display.
Blue Led Flashing Charge and Discharge Metering.
8. SoundBox 4 Gauge Amp Kit Amplifier Install Wiring & 2.5 Farad Digital Capacitor, 2300W Peak
9. 5.5 Farad Capacitor Bullz Audio BCAP5.5 5500 Watts Power 12V Car Digital Power
Feature
When System Voltages Drop, the Sound Quality of Your Car's Audio System Takes a Hit.Bullz Audio Capacitors Provide Instantaneous Power on Demand to Feed your Power Hungry Amplifiers and Stabilize the Voltage.
This is a 5.5 Farad Capacitor with a Three Digit LED Display.
Works well Up to 5500 Watts Max Power
Low ESR
10. 8.8 Farad Capacitor Bullz Audio BCAP8.8 8800 Watts Power 12V Car Digital Power
Feature
When System Voltages Drop, the Sound Quality of Your Car's Audio System Takes a Hit.Bullz Audio Capacitors Provide Instantaneous Power on Demand to Feed your Power Hungry Amplifiers and Stabilize the Voltage.
This is an 8.8 Farad Capacitor with a Red Three Digit LED Display.
Works well Up to 8800 Watts Max Power
Low ESR
