Combo package for extra savings with a digital cap and black amp wiring kit
Combo package for extra savings with a digital cap and black amp wiring kit
• Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 30% Copper CCA Wire
Item Added to Cart
Combo package for extra savings with a digital cap and black amp wiring kit
$49.99
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Belva 1 Farad Capacitor with 4 Gauge 2-Channel Amp Kit (B1DK42R).
Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display
Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display
• 2 Farad Digital Capacitor
• Carbon Fiber Design
• 2000 Watt Systems
• Digital Display
In stock
Item Added to Cart
Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display
$44.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Stinger SSCap2M.
True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block
True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block
• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)
In stock
- Free NVX Black Reusable Cloth Face Mask with purchase!
- 50% Off XCAP1F 1.0 Farad Capacitor with Amplifier Purchase
- FREE XCAP1F 1.0 Farad Capacitor with Amplifier Purchase!
Item Added to Cart
True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block
$89.99
5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the NVX XCAP1F.
10 Farad Pro Digital Hybrid Capacitor
10 Farad Pro Digital Hybrid Capacitor
• Digital 10 Farad Capacitor
• Bright Red LED Voltage Display
• Monitor System Voltage
• 12-16 Volt Operation / 18 Volt Surge
• Louder And Cleaner Bass Response
Item Added to Cart
10 Farad Pro Digital Hybrid Capacitor
$144.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Stinger SPC5010.
2 Farad Capacitor w/ Digital Display
2 Farad Capacitor w/ Digital Display
• 2 Farad Capacitor with digital voltage display
• Red Digital Voltage Display
• Audible warning tones
Item Added to Cart
2 Farad Capacitor w/ Digital Display
$34.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Boss CPBK2.
5 Farad Pro Digital Hybrid Capacitor
5 Farad Pro Digital Hybrid Capacitor
• Digital 5 Farad Capacitor
• Bright Red LED Voltage Display
• Monitor System Voltage
• 12-16 Volt Operation / 18 Volt Surge
• Louder And Cleaner Bass Response
Item Added to Cart
5 Farad Pro Digital Hybrid Capacitor
$119.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Stinger SPC505.
3.5 Farad Capacitor
3.5 Farad Capacitor
• 3.5 Farad Capacitor
•Red LED Digital Voltage Display
• Audible Warning Tone for Reverse Polarity
• Audible Warning Tone for Voltage Overload
• Audible Warning Tone for Low Battery Voltage
In stock
Item Added to Cart
3.5 Farad Capacitor
$44.99
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Boss CPBK3.5.
Combo package for extra savings with a digital cap and black amp wiring kit
Combo package for extra savings with a digital cap and black amp wiring kit
• Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 30% Copper CCA Wire
In stock
- 50% off a Belva Wiring Kit and Capacitor with Amp Purchase!
- 10% off a Belva Wiring Kit and Capacitor with Amp Purchase!
- Add a Wiring Kit and Capacitor with Amp Purchase!
Item Added to Cart
Combo package for extra savings with a digital cap and black amp wiring kit
$54.99
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Belva 1 Farad Capacitor with 4 Gauge 2-Channel Amp Kit (B1DK42BK).
10 Farad Capacitor with Digital Voltage Display and Blue Illumination
10 Farad Capacitor with Digital Voltage Display and Blue Illumination
• 10 Farad Digital Hybrid Capacitor with Blue Illumination • 3-Digit, super bright LED voltage meter
• Voltage measure accurate to +/- 0.1VDC
• Blue illuminated window
• Warning tones for reverse polarity connection, over voltage (>17VCD), or low battery voltage (<10VDC)
Item Added to Cart
10 Farad Capacitor with Digital Voltage Display and Blue Illumination
$92.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Planet Audio PC10F.
1.0 Farad Digital Car Audio Capacitor
1.0 Farad Digital Car Audio Capacitor
• 1 Farad Capacitor
• Red Digital Voltage Display
• Perfect for Systems up to 1000 Watts
• 18 Volt Surge
• Silver
• Includes Mounting Hardware
Item Added to Cart
1.0 Farad Digital Car Audio Capacitor
$35.99
5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the The Install Bay IB-CAP1F.
18 Farad Digital Hybrid Capacitor with Blue Illumination
18 Farad Digital Hybrid Capacitor with Blue Illumination
• 18 Farad Digital Hybrid Capacitor with Blue Illumination
• 3-Digit, super bright LED voltage meter
• Voltage measure accurate to +/- 0.1VDC
• Blue illuminated window with light following played music
• Automatic sleep status when volume is low
• Warning tones protection
Item Added to Cart
18 Farad Digital Hybrid Capacitor with Blue Illumination
$109.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Boss CAP18.
2 Farad Capacitor with Digital Display (Black Finish)
2 Farad Capacitor with Digital Display (Black Finish)
• 2 Farad Capacitor
• Red Digital Voltage Display
• Audible warning tone for reverse polarity, low battery voltage
• Rated voltage: 16 VDC
Item Added to Cart
2 Farad Capacitor with Digital Display (Black Finish)
$35.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Sound Storm Labs (SSL) 2 Farad Capacitor C22.
1.5 Farad Capacitor with LED Voltage Display
1.5 Farad Capacitor with LED Voltage Display
• 12-16 DC Input Voltage
• Red LED Voltage Meter
• Bolt Post for Ring Terminal
Item Added to Cart
1.5 Farad Capacitor with LED Voltage Display
$48.99
5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Soundstream SCX1.5.
3.5 Farad Capacitor with Digital Voltage Display and Audible Warnings
3.5 Farad Capacitor with Digital Voltage Display and Audible Warnings
• 3.5 Farad Capacitor
• LED Voltage Display
• Audible Warnings
• Color: Black
• Rated Voltage: 16V DC
Item Added to Cart
3.5 Farad Capacitor with Digital Voltage Display and Audible Warnings
$49.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Sound Storm Labs (SSL) C352.
2 Farad Capacitor with Digital Display (Black Finish)
2 Farad Capacitor with Digital Display (Black Finish)
• 2 Farad Capacitor
• Red Digital Voltage Display
• Audible warning tone for reverse polarity, low battery voltage
• Rated voltage: 16 VDC
In stock
Item Added to Cart
2 Farad Capacitor with Digital Display (Black Finish)
$42.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Boss 2 Farad Capacitor CPRD2.
4.0 Farad Digital Capacitor (Sound Stream SCX4)
4.0 Farad Digital Capacitor (Sound Stream SCX4)
4.0 Farad Digital Capacitor • 12-16 DC Input Voltage • Blue LED Viltage Display • Flashing LEDs • Bolt Post for Ring Terminal • Chrome plated chassis
Item Added to Cart
4.0 Farad Digital Capacitor (Sound Stream SCX4)
$109.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Soundstream SCX-4.
Digital Capacitor 3.0 Farad Distribution Top
Digital Capacitor 3.0 Farad Distribution Top
• 3.0 Farad Digital Capacitor
• Voltage Meter
• Impact Resistant Polycarbonate Cover
• Simple Mounting System
Item Added to Cart
Digital Capacitor 3.0 Farad Distribution Top
$98.00
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the T-Spec V8-3DDC.
8 Farad Digital Hybrid Capacitor with Blue Illumination
8 Farad Digital Hybrid Capacitor with Blue Illumination
• 8 Farad Digital Hybrid Capacitor with Blue Illumination
• 3-Digit, super bright LED voltage meter
• Voltage measure accurate to +/- 0.1VDC
• Blue illuminated window with light following played music
• Automatic sleep status when volume is low
• Warning tones protection
Item Added to Cart
8 Farad Digital Hybrid Capacitor with Blue Illumination
$99.99
20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Boss CAP8.
List price $149.98: BB1D 1.0 Farad Capacitor with Digital Red Display + BAK42BK Complete 2-Channel/Mono 4 Gauge Amplifier Wiring Kit (Black/Grey)
List price $149.98: BB1D 1.0 Farad Capacitor with Digital Red Display + BAK42BK Complete 2-Channel/Mono 4 Gauge Amplifier Wiring Kit (Black/Grey)
• Complete 4 Gauge 2-Channel Amplifier Installation Kit
• 1.0 Farad Capacitor
• Designed Specifically For Car Audio Systems Up to 1000 Watts RMS (2000 watts MAX)
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 30% Copper CCA Wire
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included
Item Added to Cart
List price $149.98: BB1D 1.0 Farad Capacitor with Digital Red Display + BAK42BK Complete 2-Channel/Mono 4 Gauge Amplifier Wiring Kit (Black/Grey)
$54.99
5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Belva 1.0 Farad Capacitor + Belva 2000 Watt Max Handling Amp Kit (Black/Grey).
Custom 4-Farad Capacitor for NANO BLU Series Amplifiers (Rail CAP BLX)
Custom 4-Farad Capacitor for NANO BLU Series Amplifiers (Rail CAP BLX)
• 4 Farad Capacitor
• Custom Built for NANO BLU Amps
• Stabilizes Power When Needed
• Plug and Play Design for NANO BLU Amps
In stock
Item Added to Cart
Custom 4-Farad Capacitor for NANO BLU Series Amplifiers (Rail CAP BLX)
$98.96
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
View all available accessories for the Massive Audio RAILCAP BLX (RCLX) (Open Box, Complete).
A car audio capacitor is an electrical circuit element used to store charge temporarily. This should not be confused with a battery, as a cap only temporarily holds a charge. It generally consists of two metallic plates separated by a dielectric. It is also used as a crossover component to filter out lower frequencies and allow higher frequencies to pass.
Audio capacitors charge and discharge very fast, stabilizing the voltage to the amplifier. Stabilizing the voltage helps the amplifier stay cooler and run more efficiently because the amplifier is not straining to get the power it needs. Stabilizing the voltage helps an amplifier reduce distortion and produce more power consistently.
A farad is the measurement unit used to determine the size of a capacitor. One farad to 500 watts RMS is the ratio used to determine the size of capacitor needed to supply enough power to an amplifier. While using a cap much larger than recommended will not damage an audio system, it is not recommended because of the unnecessary strain it puts on the vehicles electrical system.
Which Capacitor Should I Get?Installing a capacitor is a great way to help stabilize the voltage being sent to the amplifier. This can help reduce the strain on the vehicle?s electrical system, reduce dimming lights, and improve sound quality of the audio system. Since each car is different and unique, knowing which capacitor is best for your system is important to know. As a general rule of thumb, Sonic Electronix uses the following information as a guideline for selecting capacitors:
| Capacitor Farad Rating | Total System Wattage |
| Under 1 Farad | 0-499 Watts |
| 1-1.9 Farad | 500-999 Watts |
| 2-2.9 Farad | 1000-1499 Watts |
| 3-4.9 Farad | 1500-2499 Watts |
| 5+ Farad | 2500-Up Watts |
Useful Resources:
To find out more about car audio capacitors, call our friendly support team at 1-661-257-9993
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