Rockford Fosgate 4 Gauge Amp Kits at Sonic Electronix

Rockford Fosgate 4 Gauge Amp Kits

Rockford Fosgate 4 gauge amp kits make your amplifier installation a breeze.
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The power/ground gauge numbers represents the main wire size of the amplifier kit.

Definitions are as follows:

Gauge (wire) - The diameter of a wire. The higher the number, the thinner the wire. Example: 4 gauge wire has more strands than 10 gauge wire.

AWG (American Wire Gauge) - A standard of the dimensional characteristics of wire used to conduct electrical current or signals. AWG is identical to the Brown and Sharpe (B & S) wire gauge.
Interconnect cables are required for amplifiers which are installed to the "RCA preamp low-level outputs" of a car stereo receiver. If your amplifier has high-level / speaker level inputs, then you do not need to purchase interconnects; however, interconnects offer a much higher quality sound when compared to speaker level inputs.
If speaker wire is included, the value will be "Yes" and if no wire is included, it will read "No".
This is the type of fuse holder that is included in the item.
This is the size of the fuse that is compatible with the fuse holder. If the fuse needs to be replaced, be sure to replace it with the same size.
This is the number of amplifiers that the amplifier kit can support. If you are are going to be powering more than one amplifier, make sure that the installation kit will support them.
The material that the wire is made of. Copper & aluminum are the most commonly used materials. OFC - Oxygen Free Copper is the ideal choice for wire material. Copper is a superior electrical conductor, & does not expand or contract with heat. CCA - Copper-Clad Aluminum is a suitable choice for lower powered or budget applications. The power transfer is not on par with OFC, but this material offers significant savings.
Since 1857, The AWG (American Wire Gauge) system has been the standard for measuring the diameter of wire. AWG standard is the measure of bare wire to find true gauge. Companies that do not follow AWG Standards include the thickness of the wire jacket which means the actual wire is not "True to Gauge". For the best performance from your amplifier wiring kit, make sure that the cable complies to the AWG standard.
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Rockford Fosgate RFK4X

4 Gauge Complete Amplifier Installation Kit

RFK4X main
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4 Gauge Complete Amplifier Installation Kit

• Complete 4 Gauge Amplifier Installation Kit with RCA Interconnect Cables
• 100% Pure Crystal Oxygen-Free Copper (PC-OFC)
• FULL Spec Cable Meets or Exceeds AWG (American Wire Gauge) Requirements

17
Rockford Fosgate RFK4X

4 Gauge Complete Amplifier Installation Kit

In stock

 
$179.99
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1 Special offer
  • Save 25% when you bundle with a Rockford Fosgate Amp Wiring

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RFK4X small

4 Gauge Complete Amplifier Installation Kit

$179.99

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NVX V Series RCA Audio Interconnect Cable

V-Series: 5m (16.40 ft) 2-Channel RCA Audio Interconnect Cable

$18.99

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Heavy-Duty Grommet

This Stinger heavy duty grommet is the perfect and safe solution to running wires through the firewall.

$6.99

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Rockford Fosgate RFK4D

4 Gauge Complete Dual Amplifier Installation Kit

RFK4D main
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4 Gauge Complete Dual Amplifier Installation Kit

• Dual Amplifier Complete 4 Gauge Amplifier Installation Amp Kit
• 100% Pure Crystal-Oxygen Free Copper (PC-OFC)
• FULL Spec Cable Meets or Exceeds AWG (American Wire Gauge) Requirements

25
Rockford Fosgate RFK4D

4 Gauge Complete Dual Amplifier Installation Kit

Special order

Ships at Later Date

 
$219.99

Item Added to Cart

RFK4D small

4 Gauge Complete Dual Amplifier Installation Kit

$219.99

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free! (Cannot combine with other products)

$14.99

Add
NVX V Series RCA Audio Interconnect Cable

V-Series: 5m (16.40 ft) 2-Channel RCA Audio Interconnect Cable

$18.99

Add
Heavy-Duty Grommet

This Stinger heavy duty grommet is the perfect and safe solution to running wires through the firewall.

$6.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Rockford Fosgate RFK4D.
Rockford Fosgate RZR14-K4

4 AWG Amp Installation Kit for select Polaris® RZR® Models

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4 AWG Amp Installation Kit for select Polaris® RZR® Models

• 4 AWG wiring harness
• Designed for use with M5-1500X5 amplifier
• Includes 2 amplifier brackets (#1 for 2014-2018 models, #2 for 2019+ models)
• Pre-cut and loomed power/ground and speaker wire harnesses included

Rockford Fosgate RZR14-K4

4 AWG Amp Installation Kit for select Polaris® RZR® Models

Special order

Ships at Later Date

 
$219.99

Item Added to Cart

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4 AWG Amp Installation Kit for select Polaris® RZR® Models

$219.99

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free! (Cannot combine with other products)

$14.99

Add
Heavy-Duty Grommet

This Stinger heavy duty grommet is the perfect and safe solution to running wires through the firewall.

$6.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Rockford Fosgate RZR14-K4.
Rockford Fosgate RFK4I 2-Channel/Mono Amp Wiring Kit

4 Gauge 100% Pure Crystal-Oxygen Free Copper (PC-OFC) Power and Signal Installation Wiring Kit

RFK4I main
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4 Gauge 100% Pure Crystal-Oxygen Free Copper (PC-OFC) Power and Signal Installation Wiring Kit

• 4 Gauge Power and Signal Installation Kit
• 100% Pure Crystal-Oxygen Free Copper (PC-OFC)
• FULL Spec Cable Meets or Exceeds AWG (American Wire Gauge) Requirements
• Includes Appropriate Wire Termination Hardware

54
Rockford Fosgate RFK4I 2-Channel/Mono Amp Wiring Kit

4 Gauge 100% Pure Crystal-Oxygen Free Copper (PC-OFC) Power and Signal Installation Wiring Kit

OUT OF STOCK

 
$149.99

Item Added to Cart

RFK4I small

4 Gauge 100% Pure Crystal-Oxygen Free Copper (PC-OFC) Power and Signal Installation Wiring Kit

$149.99

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NVX V Series RCA Audio Interconnect Cable

V-Series: 5m (16.40 ft) 2-Channel RCA Audio Interconnect Cable

$18.99

Add
Heavy-Duty Grommet

This Stinger heavy duty grommet is the perfect and safe solution to running wires through the firewall.

$6.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Rockford Fosgate RFK4I 2-Channel/Mono Amp Wiring Kit.
Rockford Fosgate RFK4

4 Gauge Amplifier Power Installation Kit

RFK4 main
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4 Gauge Amplifier Power Installation Kit

• 4 Gauge Amplifier Power Installation Kit
• 100% Pure Crystal-Oxygen Free Copper
• 17 ft 4 Gauge Power Wire
• 3 ft Ground Wire
• ANL/Maxi Fuse Holder & Fuse

33
Rockford Fosgate RFK4

4 Gauge Amplifier Power Installation Kit

OUT OF STOCK

$119.99 (25.00% off)
$89.99

Item Added to Cart

RFK4 small

4 Gauge Amplifier Power Installation Kit

$89.99

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NVX V Series RCA Audio Interconnect Cable

V-Series: 5m (16.40 ft) 2-Channel RCA Audio Interconnect Cable

$18.99

Add
Heavy-Duty Grommet

This Stinger heavy duty grommet is the perfect and safe solution to running wires through the firewall.

$6.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Rockford Fosgate RFK4.
Rockford Fosgate 1.0 Farad Capacitor + 1200 Watt RMS Handling Amp Kit

List price $329.98: RFC1D Hybrid 1.0 Farad Digital Stiffening Capacitor + RFK4I 4 Gauge Power and Signal Installation Kit

RFK4I,RFC1D main
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List price $329.98: RFC1D Hybrid 1.0 Farad Digital Stiffening Capacitor + RFK4I 4 Gauge Power and Signal Installation Kit

• Hybrid 1.0 Farad Digital Stiffening Capacitor
• Increases quality of sound
• Platinum plated
• Solid brass top helps reduce stripping
• 4 Gauge Power and Signal Installation Kit
• 100% Pure Crystal-Oxygen Free Copper (PC-OFC)
• FULL Spec Cable Meets or Exceeds AWG (American Wire Gauge) Requirements
• Includes Appropriate Wire Termination Hardware

84
Rockford Fosgate 1.0 Farad Capacitor + 1200 Watt RMS Handling Amp Kit

List price $329.98: RFC1D Hybrid 1.0 Farad Digital Stiffening Capacitor + RFK4I 4 Gauge Power and Signal Installation Kit

OUT OF STOCK

$339.98 (19.12% off)
$274.98

Item Added to Cart

RFK4I,RFC1D small

List price $329.98: RFC1D Hybrid 1.0 Farad Digital Stiffening Capacitor + RFK4I 4 Gauge Power and Signal Installation Kit

$274.98

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free! (Cannot combine with other products)

$14.99

Add
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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Directed DEI Resistors (15-Pack)

Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.

$3.99

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Don't see the accessory you're looking for?
View all available accessories for the Rockford Fosgate 1.0 Farad Capacitor + 1200 Watt RMS Handling Amp Kit.

Related Categories


Rockford Fosgate Power & Ground Wire Rockford Fosgate Power & Ground Wire

Find different sizes, lengths, and colors of power/ground wires.
Get The Right Gauge Wire
Understand what gauge works best for your amp.
Read Guide

Rockford Fosgate 4 Gauge Amp Kits Information

Rockford Fosgate 4 gauge amp kits are engineered for optimal performance. These kits contain power and ground wires, RCA cables, zip ties and more. Rockford Fosgate 4 gauge amp kits are a solid choice and one of the best available.
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