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Rockford Fosgate 4 gauge dual amplifier kit with red and black power cables, fuse holder, RCA interconnects and terminals

Rockford Fosgate

Rockford Fosgate RFK4D 4 Gauge Dual Amplifier Kit 1000 watts

SKU CH-DBDC-1HKDD

Complete dual amplifier installation kit for car audio systems up to 1000 watts, featuring 4 gauge oxygen-free copper power and ground wire, twisted-pair RCA interconnects, nickel-plated terminals.

  • Product typeCar Kit Speakerphone
  • Supports systems up to 1000 watts with 4-gauge power and ground cables
  • 100% oxygen-free copper ensures pure, uninterrupted power transfer
  • Nickel-plated terminals deliver excellent signal transfer and corrosion resistance
  • Twisted-pair RCA interconnects reduce noise for cleaner audio signals
  • Maxi fuse holder provides ideal protection for high-powered installations

Rockford Fosgate RFK4D 4 Gauge Dual Amplifier Kit

This complete installation kit is designed for car audio systems up to 1000 watts. It includes premium power and ground wires made from 100% oxygen-free copper for pure power transfer. The kit also provides 2-channel RCA interconnect cables with twisted-pair technology for noise reduction. Nickel-plated terminals ensure excellent signal transfer throughout the system.

Thermals, noise and power draw in normal use

The 4 gauge cables meet or exceed industry copper standards for the gauge size. Oxygen-free copper construction minimises resistance during standard operation. Twisted-pair RCA interconnects reduce induced noise from the vehicle's electrical system. A maxi fuse holder provides protection for the high powered installation.

Behaviour under sustained load

True-to-gauge wiring maintains optimal power transfer during extended high-output sessions. The maxi fuse holder protects the system continuously at the rated 1000 watt capacity. Oxygen-free copper prevents degradation of power delivery over long periods. Nickel-plated terminals sustain reliable signal integrity under continuous demand.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $256.99
Pricier than about 90% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeCar Kit Speakerphone

Questions about this item

How do I route the 4-gauge power and ground cables and where does the maxi fuse holder go?

Run the oxygen-free copper power cable from the battery positive terminal to the distribution block, attach the maxi fuse holder close to the battery, then run ground cables from each amplifier to clean chassis points.

Which parts of the RFK4D kit will need replacement after extended use?

The maxi fuse is the only consumable; replace it if it blows. The 100% oxygen-free copper wires, nickel-plated terminals and twisted-pair RCA interconnects are built to last the life of the installation.

What limits performance first when the system runs near the 1000 watt rating for long periods?

The 4-gauge copper conductors set the current-carrying ceiling; sustained loads at the kit's 1000 watt design limit will hit wire ampacity before any other component.

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