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Crutchfield CK8

8-gauge amplifier power wiring kit

Item # 007CK8

Crutchfield's 8-gauge amplifier wiring kit contains the wire and hardware necessary to supply power to your...

Crutchfield's 8-gauge amplifier wiring kit contains the wire and hardware necessary to supply power to your...

California customers:
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In stock
$49.99

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About the Crutchfield CK8

Deliver the power your amp deserves

Crutchfield's 8-gauge amplifier wiring kit contains the wire and hardware necessary to supply power to your amplifier safely, efficiently, and economically. This wiring kit does not include RCA patch cables or speaker wire. You may need to purchase those items separately, in order to complete your installation.

Deliver the power your amp deserves

Crutchfield's 8-gauge amplifier wiring kit contains the wire and hardware necessary to supply power to your amplifier safely, efficiently, and economically. This wiring kit does not include RCA patch cables or speaker wire. You may need to purchase those items separately, in order to complete your installation.

Power ratings and amp efficiency

Most amplifiers come in two distinct "Classes" of technology with different efficiencies and power wire size requirements. Class AB amps typically feature 50% to 60% efficiency, while Class D amps are usually 75% to 80% efficient. This Crutchfield wiring kit was designed to accommodate the energy demands of a Class AB amplifier with a total output of up to 420 watts RMS, or a Class D amp with up to 650 watts RMS output.

CTA-2015 Compliant

Crutchfield wire

Crutchfield wire is made of oxygen-free copper, with no impurities that could raise its resistance to a signal's flow or add interference. Crutchfield wire meets all Consumer Technology Association (CTA-2015) standards for size, resistance, and insulation quality.

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Product highlights:

  • amplifier wiring kit
  • RCA cables and speaker wire not included
  • maximum power ratings: Class AB: 420 watts RMS, Class D: 650 watts RMS
  • oxygen-free copper wires meet all ANSI and CEA standards
    • 17 feet (5.2m) of 8-gauge red power wire with ring terminal
    • 3 feet (0.9m) of 8-gauge black ground wire with ring terminal
    • 17 feet (5.2m) of 18-gauge blue remote turn-on lead wire
  • brass mini-ANL fuse holder and 60A fuse
  • assorted hardware
    • 6 feet (1.8m) of 8-gauge black split loom
    • 8-gauge firewall bushing
    • two 22-18-gauge butt connectors
    • six wire ties
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # CK8

What's in the box:

  • 17' Length of 8AWG power wire (red translucent jacket and terminated with ring-terminal on one end)
  • 3' Length of 8AWG ground wire (black translucent jacket and terminated by a ring-terminal on one end)
  • 17' Length of 18AWG remote turn-on wire (blue jack)
  • Fuse holder
  • 60A Mini-ANL fuse (installed in fuse holder)
  • Firewall bushing
  • 2 Butt-connectors
  • 6' Length of split loom
  • 6 Wire ties

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More details on the Crutchfield CK8

Mark G.
The Crutchfield CK8 replaces these items:

Product Research

Features & Dimensions

Power & Ground Wire:

  • Gauge: 8 AWG
  • Wire Construction: Oxygen Free Copper (735 strands)
  • Length: 17' (Power), 3' (Ground)
  • Diameter: 0.255"

Terminals:

  • Terminal Type: Nickel-plated brass ring-terminal (on Power & Ground wire)
  • Terminal Diameter: Outer Diameter = 0.555", Inner Diameter = 0.325"

Fuse:

  • Fuse Type: Mini-ANL
  • Fuse Size: 60A
  • Fuse Holder: External fuse holder (fuse already installed)

Remote Turn-On Wire:

  • Gauge: 18 AWG
  • Wire Construction: Oxygen Free Copper (16 strands)
  • Length: 17'
  • Diameter: 0.105"

Included Accessories:

  • Grommet: 8 AWG firewall bushing
  • Butt-connectors: 22-18 AWG butt-connectors (2)
  • Loom: 6' length of 8 AWG split-loom
  • Wire-ties: 6

Installation Notes:  

  • RCA cables and speaker wire not included (sold separately).
  • Installation tools sold separately.

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Customer Q&A

5 questions already asked

Q
What is the drill bit size for the firewall bushing?
[ Dale  Dec 15, 2020 ]
1 answer
A
You can't just drill a hole, you do need to add a rubber grommet to prevent chaffing thru the outer wire's protective covering. The drill bit size will depend on the size of grommet you use. Most local hardware stores will have them and they usually specify the drill bit size needed to accomplish the proper fit for instal.
[ Rick  Dec 15, 2020 ]
Q
Is it safe to run power for a subwoofer amp to an open slot in a nearby fuse panel in the back?
[ Michael  Nov 29, 2020 ]
2 answers
A
Power for the amp needs to be ran directly to the battery.
[ brian  Nov 30, 2020 ]
A
Need to run power directly to the battery with a fuse between battery and amp
[ MARK  Nov 29, 2020 ]
Q
Can I use it with a amp that recommends a 50A fuse?
[ Garrettt  Nov 03, 2020 ]
1 answer
A
Yes but you need to make sure that the gauge wire is the appropriate size for the amp you're usingEnter an answer to this question.
[ BRETT  Nov 04, 2020 ]
Q
Is the fuse holder waterproof?
[ David  Apr 26, 2020 ]
1 answer
A
It is not.
[ Calvin  May 19, 2020 ]  Staff
Q
Is wire copper or copper clad aluminum?
[ Esteban  Jan 11, 2020 ]
2 answers
A
It's copper. And despite what Eileen said, you can clad copper with aluminum, that's what CCA is. She completely destroyed her own argument about dissimilar metals, as tin and copper are different metals too. Or doesn't she realize tin is a metal?
[ Dan  Nov 11, 2020 ]
A
You cannot copper clad aluminum they are dissimilar metals, however, you can clad copper cable with tin which is what the cables that come with these speakers are.
[ Eileen  Apr 22, 2020 ]
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