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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Audio Installation & Accessories
  4. Discontinued Car Amplifier Installation & Accessories
  5. Discontinued Audio Capacitors

Discontinued Audio Capacitors

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Capacitors ✕
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Capacitors,
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Capacitance (farads)
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.
LCD Meter Display
Displays the current voltage and/or other specification on an LCD readout.
Primary Color
This is the main color of the item.
Built-In Distribution Block
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.
Maximum Input Gauge Size
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.
Maximum Output Gauge Size
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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Boss CAP3.5R (RED)

3.5 Farad Digital Capacitor (CAP35R)

CAP3.5R big DISCONTINUED
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Boss CAP3.5R (RED)

3.5 Farad Digital Capacitor (CAP35R)

3.5 Farad Digital Capacitor • Digital voltage level display • Chrome finish terminals • Includes mounting brackets • 20V DC • 24V Surge

2

3.5 Farad Digital Capacitor • Digital voltage level display • Chrome finish terminals • Includes mounting brackets • 20V DC • 24V Surge

Boss CAP30

30 Farad Digital Hybrid Capacitor with Blue Illumination

CAP30 big DISCONTINUED
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Boss CAP30

30 Farad Digital Hybrid Capacitor with Blue Illumination

• 30 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

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• 30 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

XO Vision Express CA158XS (SILVER)

2.0 Farad Digital Capacitor

CA158XS big DISCONTINUED
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XO Vision Express CA158XS (SILVER)

2.0 Farad Digital Capacitor

2.0 Farad • 24V Maximum voltage • LED Voltage display • 203°F (95°C) Maximum temperature • Polarity protection • Gold plated terminals • COLOR: SILVER

2.0 Farad • 24V Maximum voltage • LED Voltage display • 203°F (95°C) Maximum temperature • Polarity protection • Gold plated terminals • COLOR: SILVER

SPL CP5.0

5.0 Farad Capacitor with Digital Voltmeter Read-out

CP5.0 big DISCONTINUED
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SPL CP5.0

5.0 Farad Capacitor with Digital Voltmeter Read-out

5.0 Farad Digital Capacitor

1

5.0 Farad Digital Capacitor

Boss CAP35

35 Farad Digital Hybrid Capacitor with Blue Illumination

CAP35 big DISCONTINUED
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Boss CAP35

35 Farad Digital Hybrid Capacitor with Blue Illumination

35 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)

1

35 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)

Maxxlink VDC1.5V1

Low ESR 1.5 Farad Capacitor w/LCD Display for Systems up to 1500 watts

VDC1.5V1 big DISCONTINUED
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Maxxlink VDC1.5V1

Low ESR 1.5 Farad Capacitor w/LCD Display for Systems up to 1500 watts

• Low ESR 1.5 Farad Capacitor w/LCD Display for Systems up to 1500 Watts
• Blue LCD Voltage Display
• Integrated Allen Bolt for Quick Hookup
• Easy Two-piece Mounting System
• Delivers Additional Power On-demand for Improved Amplifier Performance
• Lowest Equivalent Series Resistance (ESR) In The Industry For The Fastest Recharge Times

1

• Low ESR 1.5 Farad Capacitor w/LCD Display for Systems up to 1500 Watts
• Blue LCD Voltage Display
• Integrated Allen Bolt for Quick Hookup
• Easy Two-piece Mounting System
• Delivers Additional Power On-demand for Improved Amplifier Performance
• Lowest Equivalent Series Resistance (ESR) In The Industry For The Fastest Recharge Times

Lightning Audio LDDC1

1.0 Farad Digital Stiffening Capacitor with Ultra Low ESR

LDDC1 big DISCONTINUED
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Lightning Audio LDDC1

1.0 Farad Digital Stiffening Capacitor with Ultra Low ESR

1.0 Farad Digital Stiffening Capacitor with Built-In Voltage Meter • Ultra Low ESR • High Gain Foil • Improves Bass Response • Increase the Max Power • Reduce Dimming Headlights • Color is Silver

1.0 Farad Digital Stiffening Capacitor with Built-In Voltage Meter • Ultra Low ESR • High Gain Foil • Improves Bass Response • Increase the Max Power • Reduce Dimming Headlights • Color is Silver

Phoenix Digital (RED) PD-BASE

1.20 Farad Digital Capacitor

PD-BASE-RED big DISCONTINUED
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Phoenix Digital (RED) PD-BASE

1.20 Farad Digital Capacitor

COLOR: RED • 1.2 Farad capacitor • Digital LED voltage display • Gold plated terminals • Polarity protection • Max Voltage: 24VDC • Power-on LED indicator

COLOR: RED • 1.2 Farad capacitor • Digital LED voltage display • Gold plated terminals • Polarity protection • Max Voltage: 24VDC • Power-on LED indicator

Power Acoustik PCX-20F

20.0 Farad Digital Hybrid Capacitor (PCX20F)

PCX-20F big DISCONTINUED
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Power Acoustik PCX-20F

20.0 Farad Digital Hybrid Capacitor (PCX20F)

• 20.0 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

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• 20.0 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

Kole Audio C-20D

20 Farad Digital Capacitor (C20D)

C-20D big DISCONTINUED
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Kole Audio C-20D

20 Farad Digital Capacitor (C20D)

20 Farad Digital Power Capacitor • Square Chrome Plated • Operating Voltage: 16 Volts Max

1

20 Farad Digital Power Capacitor • Square Chrome Plated • Operating Voltage: 16 Volts Max

Rockford Fosgate CPCD10-03

1.0 Farad Digital Capacitor

CPCD10-03 big DISCONTINUED
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Rockford Fosgate CPCD10-03

1.0 Farad Digital Capacitor

New Model • Digital 1 Farad Punch Capacitor • For systems up to 1000 watts • Chrome/Black Color

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New Model • Digital 1 Farad Punch Capacitor • For systems up to 1000 watts • Chrome/Black Color

Soundstream SCX1.5 Open Box Complete

1.5 Farad Capacitor with LED Voltage Display

SCX1.5 big DISCONTINUED
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Soundstream SCX1.5 Open Box Complete

1.5 Farad Capacitor with LED Voltage Display

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

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

Precision Power PPI C.6F

6 Farad Digital Power Capacitor

C.6F big DISCONTINUED
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Precision Power PPI C.6F

6 Farad Digital Power Capacitor

• Digital 6 Farad Hybrid Power Capacitor
• 12-16 DCV Operation
• Red Digital Voltage Display
• Charging Status Indicator
• Polarity and Over Voltage Protection Circuit
• Chrome Finish with Gloss Black Accents

2

• Digital 6 Farad Hybrid Power Capacitor
• 12-16 DCV Operation
• Red Digital Voltage Display
• Charging Status Indicator
• Polarity and Over Voltage Protection Circuit
• Chrome Finish with Gloss Black Accents

Power Acoustik PC1.0F RED

1.5 Farad Digital Capacitor

PC1.0F-RED big DISCONTINUED
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Power Acoustik PC1.0F RED

1.5 Farad Digital Capacitor

RED MODEL • Digital 1.2 Farad Capacitor • 24V Surge • Satin Plated with Cover • Mounting Brackets included

1

RED MODEL • Digital 1.2 Farad Capacitor • 24V Surge • Satin Plated with Cover • Mounting Brackets included

Absolute CAP350B (Black w/ Blue)

3.5 Farad Digital Power Capacitor with 24 Volt Surge

CAP350B big DISCONTINUED
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Absolute CAP350B (Black w/ Blue)

3.5 Farad Digital Power Capacitor with 24 Volt Surge

3.5 Farad / 24 Volt Digital Power Capacitor • Black with Blue Accent • Increases Level of Bass, and the Peak Power of Your Amp • Reduce or Stop The Dimming of your Headlights

1

3.5 Farad / 24 Volt Digital Power Capacitor • Black with Blue Accent • Increases Level of Bass, and the Peak Power of Your Amp • Reduce or Stop The Dimming of your Headlights

Audiobahn ACAP7J

2.0 Farad Capacitor with 4-Digit Digital Display

ACAP7J big DISCONTINUED
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Audiobahn ACAP7J

2.0 Farad Capacitor with 4-Digit Digital Display

2.0 Farad Capacitor • 24 Volt Rated - 30 Volt Surge • Auto On/Off Blue Four-Digit Readout • Blue LED Indicator Light • Electronic Polarity Protection Circuit • Over-Voltage Protection Circuit • Mounting Brackets & Hardware Included

2

2.0 Farad Capacitor • 24 Volt Rated - 30 Volt Surge • Auto On/Off Blue Four-Digit Readout • Blue LED Indicator Light • Electronic Polarity Protection Circuit • Over-Voltage Protection Circuit • Mounting Brackets & Hardware Included

XO Vision XPRESS CAP303XS (Silver)

3.2 Farad Digital Power Capacitor with LED Voltage Meter

CAP303XS big DISCONTINUED
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XO Vision XPRESS CAP303XS (Silver)

3.2 Farad Digital Power Capacitor with LED Voltage Meter

3.2 Farad Digital Power Capacitor with LED Voltage Meter • Gold-plated connection terminals • Mounting brackets included

3.2 Farad Digital Power Capacitor with LED Voltage Meter • Gold-plated connection terminals • Mounting brackets included

Soundstream SC-20CA

20 Farad Digital Capacitor w/ Distribution Blocks

SC-20CA big DISCONTINUED
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Soundstream SC-20CA

20 Farad Digital Capacitor w/ Distribution Blocks

20 Farad Digital Hybrid Super Capacitor • Amperage Meter • PCB with Blue LED Display • 24 Status LED’s • Chrome Plated Rectangular Low Profile Case • PCB with Blue LED Display

1

20 Farad Digital Hybrid Super Capacitor • Amperage Meter • PCB with Blue LED Display • 24 Status LED’s • Chrome Plated Rectangular Low Profile Case • PCB with Blue LED Display

NVX XCAP1F (Open Box, Complete)

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

XCAP1F big DISCONTINUED
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NVX XCAP1F (Open Box, Complete)

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)

• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Tsunami X15HCAP-40

40 Farad Amplifier Style Hybrid Power Capacitor

X15HCAP-40 big DISCONTINUED
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Tsunami X15HCAP-40

40 Farad Amplifier Style Hybrid Power Capacitor

40 Farad Competition Series Digital Hybrid Capacitor • Blue Digital DC Voltage And Amperage Display • Reverse Polarity PCB Audible Warning Function • High-End Platinum Plated 100% Brass Parts

40 Farad Competition Series Digital Hybrid Capacitor • Blue Digital DC Voltage And Amperage Display • Reverse Polarity PCB Audible Warning Function • High-End Platinum Plated 100% Brass Parts

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    FAQ Frequently asked questions in Discontinued Audio Capacitors

    Car Audio Capacitor Frequently Asked Questions (FAQ)
    A car audio capacitor is an electronic component that stores and releases electrical energy to support high-demand audio systems. When amplifiers require a surge of power to deliver heavy bass hits or loud music passages, the electrical system might experience voltage drops. Capacitors act as a buffer, providing instant power when needed, reducing strain on the alternator, and preventing dimming headlights or other electrical issues. High-power audio systems can benefit from capacitors by ensuring a stable voltage supply, resulting in improved amplifier performance and cleaner sound output.
    If you have a high-power audio system with large amplifiers, subwoofers, and upgraded speakers, you may experience voltage drops and dimming lights when playing music at high volumes. These are indications of a strained electrical system. Installing a car audio capacitor can alleviate these issues by providing the extra power needed during peak demands, improving amplifier performance, and maintaining consistent voltage levels. If you notice any signs of electrical strain or audible distortion at high volumes, adding a capacitor to your system may be beneficial.
    The size and capacity of the capacitor you need depend on your audio system's power requirements. Capacitors are measured in Farads (F), and higher capacity capacitors can store more electrical energy. To determine the right size, calculate the total RMS power output of your amplifiers. As a general rule of thumb, a 1 Farad capacitor is suitable for every 1,000 watts RMS of total amplifier power. For example, if you have 2,000 watts RMS of amplifier power, a 2 Farad capacitor should be sufficient. However, it is essential to consult with a car audio expert or use Sonic Electronix's AmpliFinder tool to ensure you select the appropriate capacitor size for your specific setup.
    Installing a car audio capacitor involves several steps. First, disconnect the vehicle's negative battery terminal to ensure safety. Next, identify a suitable location near the amplifier(s) to mount the capacitor. Install the capacitor by connecting the positive power wire from the amplifier(s) to the positive terminal of the capacitor and the negative terminal to a suitable ground point. It's crucial to use proper wire gauge and secure connections to prevent voltage drops and potential hazards. After the installation, reconnect the battery terminal and test your audio system. If you are unsure about the installation process, it's best to seek assistance from a professional car audio installer to ensure a safe and reliable installation.
    While car audio capacitors can improve voltage stability and prevent voltage drops, they may not fix all power-related issues. If your audio system experiences significant voltage drops, dimming lights, or audible distortion at high volumes, adding a capacitor can help alleviate these problems. However, if the electrical demands of your audio system exceed the capabilities of your vehicle's stock alternator or battery, a capacitor may not be a complete solution. In such cases, you may need to upgrade your alternator or battery to handle the increased power demands. It's essential to assess your audio system's power requirements and consult with a car audio expert to determine the most effective solution for your specific setup. Sonic Electronix's expert staff can assist you in selecting the right capacitor and providing guidance on any additional upgrades needed to optimize your car audio system's performance. Car audio capacitors are valuable accessories for high-power audio systems, providing the extra power needed during peak demands and ensuring a stable voltage supply. By understanding your audio system's power requirements and selecting the appropriate capacitor size, you can enhance your car audio experience and enjoy clean, distortion-free sound at any volume level. Sonic Electronix offers a wide selection of high-quality car audio capacitors from top brands, ensuring you find the perfect capacitor to meet your system's needs.
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