About the Crutchfield CK12

Deliver the power your system deserves
Deliver the power your system deserves
Crutchfield's 12-gauge amplifier wiring kit contains the wire and hardware necessary to supply power safely, efficiently, and economically to a high-power radio or a power pack drawing less than 30-amps. This wiring kit does not include RCA patch cables, a remote turn-on lead, 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 about 140 watts RMS, or a Class D amp with up to 220 watts RMS output.

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.
Product highlights:
- wiring kit for power packs and high-power radios
- RCA cables, remote turn-on lead, and speaker wire not included
- maximum power ratings: Class AB: 140 watts RMS, Class D: 220 watts RMS
- oxygen-free copper wires meet all ANSI and CEA standards
- 17 feet (5.2m) of 12-gauge red power wire with ring terminal and in-line ATC fuse holder
- 6 feet (0.9m) of 12-gauge black ground wire with ring terminal
- 3 ATC fuses (15A, 20A, 30A)
- assorted hardware
- 6 feet (1.8m) of 12-gauge black split loom
- 12-gauge firewall bushing
- two 12-10-gauge butt connectors
- six wire ties
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # CK12
What's in the box:
- 17' Length of 12-gauge power wire with in-line fuse holder (red translucent jacket and terminated with ring-terminal on one end)
- 6' Length of 12-gauge ground wire (black translucent jacket and terminated by a ring-terminal on one end)
- 15-amp ATC fuse
- 20-amp ATC fuse
- 30-amp ATC fuse
- Firewall bushing
- Two 12-10 gauge butt-connectors (yellow)
- 6' Length of split loom
- Six 3" Zip ties
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Features & Dimensions
Power & Ground Wire:
- Gauge: 12 AWG
- Wire Construction: Tinned Oxygen Free Copper (294 strands)
- Length: 17' (Power), 6' (Ground)
- Diameter: 0.185"
Terminals:
- Terminal Type: Nickel-plated brass ring-terminal (on Power & Ground wire)
- Terminal Diameter: Outer Diameter = 0.555", Inner Diameter = 0.325"
Fuses:
- Fuse Type: ATC
- Fuse Sizes: 15A, 20A, 30A (one of each)
- Fuse Holder: In-line fuse holder on power wire
Included Accessories:
- Grommet: 12 AWG firewall bushing
- Butt-connectors: 10-12 AWG butt-connectors (2)
- Loom: 6' length of 12 AWG split-loom
- Wire-ties: 6
Installation Notes:
- RCA cables, speaker wire, and remote turn-on lead not included (all sold separately).
- Installation tools sold separately.
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Customer Q&A
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Used this kit in conjunction with Sony MEX-XB100BT High Power CD Receiver. It needed a seperate wire ran power power and ground since it needed a little more juice. Perfectly sized wire gauge for this type of installation. Very high quality feeling wires and fuse holder for the price.
Randol from Wailuku, HI