Rockford Fosgate RFK4X 4 Gauge PC-OFC Complete Installation Amplifier — Big Jeff Audio Dealer Platform
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Welcome To The Dealer Platform


  • 100% Pure Crystal-Oxygen Free Copper (PC-OFC)
  • Fuse Size: 100 Amp
  • 4 AWG (21.1mm) 1,862 strands
  • 16 AWG (1.31mm) 65 strands
  • Fuse Type: MAXI

Rockford Fosgate RFK4X 4 Gauge PC-OFC Complete Installation Amplifier Kit

This Listing Includes:

  • (1) 17' Power cable (4-gauge) in a red translucent jacket (has an in-line MAXI fuse holder and a ring terminal on the battery end)

  • (1) 100A MAXI fuse

  • (1) 3' Ground cable (4-gauge) in a translucent gray jacket (with a ring terminal on one end)

  • (1) 16' Twisted pair RCA patch cord

  • (1) 30' of 16-AWG speaker wire

  • (1) 20' Turn-on lead in a blue jacket

  • (10) 4" wire ties

  • (1) Plastic grommet

  • (5) Plastic butt connectors

  • (6) Female quick slide connectors

  • (5) Male quick slide connectors

  • (8) 16-AWG Spade connectors

  • (4) Blue rubber boots

  • (4) Black rubber boots


  • FULL spec cable - meets or exceeds AWG (American Wire Gauge) requirements

  • 100% Pure Crystal-Oxygen Free Copper (PC-OFC)

  • 4 AWG (21.1mm) 1,862 strands

  • 16 AWG (1.31mm) 65 strands


  • Battery PWR/GND Gauge: 4 AWG

  • Amplifier PWR/GND Gauge: 4 AWG

  • Fuse Type: MAXI

  • Dual Amp Installation Kit: No

  • Speaker Wire Gauge: 16 AWG

  • Fuse Size: 100 Amp

Payment Information


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We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

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contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.