Car Audio & Stereo Capacitors | Hybrid & Digital Caps to Stop Dimming Lights | Sonic Electronix

Audio Capacitors

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Capacitors are rated in farads, and at times microfarads or millionths of a farad. The more farads the capacitor is rated at, the more electrical charge (and wattage) the capacitor will hold. Capacitance is defined as the property of storing an electrical charge between two separate conductors.
Displays the current voltage and/or other specification on an LCD readout.
This is the main color of the item.
A built-in distribution block simply means that the item includes a distribution block. The built-in distribution block will split the single power input into a multiple power output.
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
This number refers to the maximum size of wire that will fit into the output connector(s) of the capacitor, battery terminal, or any other connector with an wire output.
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Belva 1 Farad Capacitor with 4 Gauge 2-Channel Amp Kit (B1DK42R)

Combo package for extra savings with a digital cap and black amp wiring kit

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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

5
Belva 1 Farad Capacitor with 4 Gauge 2-Channel Amp Kit (B1DK42R)

Combo package for extra savings with a digital cap and black amp wiring kit

In stock

$57.99 (13.80% off)
$49.99
Stinger SSCap2M

Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display

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Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display

• 2 Farad Digital Capacitor
• Carbon Fiber Design
• 2000 Watt Systems
• Digital Display

Stinger SSCap2M

Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display

In stock

$74.99 (40.01% off)
$44.99

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Stinger Select Brushed Aluminum 2 Farad Power Capacitor w/ Digital Display

$44.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

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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)

21
NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

In stock

$124.99 (28.00% off)
$89.99
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3 Special offers
  • 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!

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True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

$89.99

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NVX Precut Power/Ground Wire (4 AWG)

5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.

$15.99

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Stinger SPC5010

10 Farad Pro Digital Hybrid Capacitor

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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

8
Stinger SPC5010

10 Farad Pro Digital Hybrid Capacitor

OUT OF STOCK

$299.99 (51.67% off)
$144.99

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10 Farad Pro Digital Hybrid Capacitor

$144.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Boss CPBK3.5

3.5 Farad Capacitor

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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

Boss CPBK3.5

3.5 Farad Capacitor

In stock

$67.48 (33.33% off)
$44.99
Boss CPBK2

2 Farad Capacitor w/ Digital Display

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2 Farad Capacitor w/ Digital Display

• 2 Farad Capacitor with digital voltage display
• Red Digital Voltage Display
• Audible warning tones

1
Boss CPBK2

2 Farad Capacitor w/ Digital Display

In stock

$59.99 (41.67% off)
$34.99

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2 Farad Capacitor w/ Digital Display

$34.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Belva 1 Farad Capacitor with 4 Gauge 2-Channel Amp Kit (B1DK42BK)

Combo package for extra savings with a digital cap and black amp wiring kit

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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

1
Belva 1 Farad Capacitor with 4 Gauge 2-Channel Amp Kit (B1DK42BK)

Combo package for extra savings with a digital cap and black amp wiring kit

In stock

$57.99 (5.17% off)
$54.99
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3 Special offers
  • 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!
Planet Audio PC10F

10 Farad Capacitor with Digital Voltage Display and Blue Illumination

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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)

4
Planet Audio PC10F

10 Farad Capacitor with Digital Voltage Display and Blue Illumination

In stock

$179.99 (48.34% off)
$92.99

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10 Farad Capacitor with Digital Voltage Display and Blue Illumination

$92.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Sound Storm Labs (SSL) 2 Farad Capacitor C22

2 Farad Capacitor with Digital Display (Black Finish)

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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

1
Sound Storm Labs (SSL) 2 Farad Capacitor C22

2 Farad Capacitor with Digital Display (Black Finish)

In stock

$63.00 (42.87% off)
$35.99

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2 Farad Capacitor with Digital Display (Black Finish)

$35.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Boss CAP18

18 Farad Digital Hybrid Capacitor with Blue Illumination

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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

9
Boss CAP18

18 Farad Digital Hybrid Capacitor with Blue Illumination

In stock

$174.99 (37.14% off)
$109.99

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18 Farad Digital Hybrid Capacitor with Blue Illumination

$109.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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The Install Bay IB-CAP1F

1.0 Farad Digital Car Audio Capacitor

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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

19
The Install Bay IB-CAP1F

1.0 Farad Digital Car Audio Capacitor

In stock

$49.99 (28.01% off)
$35.99

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1.0 Farad Digital Car Audio Capacitor

$35.99

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NVX Precut Power/Ground Wire (4 AWG)

5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.

$15.99

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Soundstream SCX1.5

1.5 Farad Capacitor with LED Voltage Display

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1.5 Farad Capacitor with LED Voltage Display

• 12-16 DC Input Voltage
• Red LED Voltage Meter
• Bolt Post for Ring Terminal

8
Soundstream SCX1.5

1.5 Farad Capacitor with LED Voltage Display

In stock

$79.99 (37.50% off)
$49.99

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1.5 Farad Capacitor with LED Voltage Display

$49.99

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NVX Precut Power/Ground Wire (4 AWG)

5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.

$15.99

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Sound Storm Labs (SSL) C352

3.5 Farad Capacitor with Digital Voltage Display and Audible Warnings

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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

1
Sound Storm Labs (SSL) C352

3.5 Farad Capacitor with Digital Voltage Display and Audible Warnings

In stock

$78.00 (35.91% off)
$49.99

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3.5 Farad Capacitor with Digital Voltage Display and Audible Warnings

$49.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Boss CAP8

8 Farad Digital Hybrid Capacitor with Blue Illumination

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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

28
Boss CAP8

8 Farad Digital Hybrid Capacitor with Blue Illumination

In stock

$159.99 (37.50% off)
$99.99

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8 Farad Digital Hybrid Capacitor with Blue Illumination

$99.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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T-Spec V8-3DDC

Digital Capacitor 3.0 Farad Distribution Top

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Digital Capacitor 3.0 Farad Distribution Top

• 3.0 Farad Digital Capacitor
• Voltage Meter
• Impact Resistant Polycarbonate Cover
• Simple Mounting System

23
T-Spec V8-3DDC

Digital Capacitor 3.0 Farad Distribution Top

In stock

$116.00 (15.52% off)
$98.00

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Digital Capacitor 3.0 Farad Distribution Top

$98.00

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Boss 2 Farad Capacitor CPRD2

2 Farad Capacitor with Digital Display (Black Finish)

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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

Boss 2 Farad Capacitor CPRD2

2 Farad Capacitor with Digital Display (Black Finish)

In stock

$52.48 (18.08% off)
$42.99

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2 Farad Capacitor with Digital Display (Black Finish)

$42.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Belva 1.0 Farad Capacitor + Belva 2000 Watt Max Handling Amp 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)

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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

1
Belva 1.0 Farad Capacitor + Belva 2000 Watt Max Handling Amp 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)

In stock

$57.99 (5.17% off)
$54.99

Item Added to Cart

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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

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NVX Precut Power/Ground Wire (4 AWG)

5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and blue insulation.

$15.99

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View all available accessories for the Belva 1.0 Farad Capacitor + Belva 2000 Watt Max Handling Amp Kit (Black/Grey).
Power Acoustik PCX-30F

30.0 Farad Digital Hybrid Capacitor (PCX30F)

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30.0 Farad Digital Hybrid Capacitor (PCX30F)

• 30.0 Farad hybrid digital power capacitor
• 24V DC foil-carbon internal capacitor
• Digital blue voltage display
• Electronics polarity circuit
• Over voltage protection circuit
• Platinum plated ring terminals

34
Power Acoustik PCX-30F

30.0 Farad Digital Hybrid Capacitor (PCX30F)

In stock

$189.99 (23.16% off)
$145.99

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30.0 Farad Digital Hybrid Capacitor (PCX30F)

$145.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Soundstream SCX-4

4.0 Farad Digital Capacitor (Sound Stream SCX4)

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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

9
Soundstream SCX-4

4.0 Farad Digital Capacitor (Sound Stream SCX4)

In stock

$199.99 (45.00% off)
$109.99

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4.0 Farad Digital Capacitor (Sound Stream SCX4)

$109.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Power Acoustik PCX-5F

5.0 Farad Digital Capacitor (PCX5F)

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5.0 Farad Digital Capacitor (PCX5F)

• 5.0 Farad hybrid digital power capacitor
• 24V DC foil-carbon internal capacitor
• Digital blue voltage display
• Tinted plexiglas with blue LED lights inside for viewing
• Electronics polarity circuit
• Over voltage protection circuit

34
Power Acoustik PCX-5F

5.0 Farad Digital Capacitor (PCX5F)

In stock

$149.99 (40.00% off)
$89.99

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5.0 Farad Digital Capacitor (PCX5F)

$89.99

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NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

$109.99

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Car Audio Capacitors:

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 RatingTotal System Wattage
Under 1 Farad0-499 Watts
1-1.9 Farad500-999 Watts
2-2.9 Farad1000-1499 Watts
3-4.9 Farad1500-2499 Watts
5+ Farad2500-Up Watts

To find out more about car audio capacitors, call our friendly support team at 1-661-257-9993

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