About the Crutchfield CKD4
Deliver the power your amps deserve
Deliver the power your amps deserve
Crutchfield's 4-gauge dual amplifier wiring kit contains the wire and hardware necessary to supply power to two amplifiers safely, efficiently, and economically. A fused distribution block helps keep your installation neat, and protects each amp from dangerous short circuits. 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. This Crutchfield wiring kit was designed to accommodate the energy demands of two Class AB amplifiers with a combined total output of up to 700 watts RMS — a 50 watts x 4 speaker amplifier plus a 500-watt sub amp, for example. For Class D amps, the kit will work with up to 1,100 watts RMS total output — a 75 watts x 4 amp plus a 750-watt sub amp, for example.
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:
- dual amplifier wiring kit
- RCA cables and speaker wire not included
- maximum power ratings (total of both amps): Class AB: 700 watts RMS, Class D: 1100 watts RMS
- oxygen-free copper wires meet all ANSI and CEA standards
- 17 feet (5.2m) of 4-gauge red power wire with ring terminal
- 3 feet (0.9m) of 4-gauge black ground wire with ring terminal
- 6 feet (1.8m) of 8-gauge red power wire
- 6 feet (1.8m) of 8-gauge black ground wire
- 17 feet (5.2m) of 18-gauge blue remote turn-on lead wire
- brass mini-ANL fuse holder and two 50A fuses (100A total rating)
- fused distribution block with one 40A and one 60A mini-ANL fuse
- ground distribution block: two 8-gauge inputs to one 4-gauge output
- assorted hardware
- 6 feet (1.8m) of 4-gauge black split loom
- 4-gauge firewall bushing
- two 22-18-gauge butt connectors
- ten wire ties
- warranty: 1 year
- MFR # CKD4
What's in the box:
- 17' Length of 4AWG power wire (red translucent jacket and terminated with ring-terminal on one end)
- 3' Length of 4AWG ground wire (black translucent jacket and terminated by a ring-terminal on one end)
- 6' Length of 8AWG power wire (red translucent jacket)
- 6' Length of 8AWG ground wire (black translucent jacket)
- 17' Length of 18AWG remote turn-on wire (blue jacket)
- Fuse holder
- Two 50A Mini-ANL fuses (red-installed in fuse holder)
- Distribution block
- 40A Mini-ANL fuse (amber-installed in distribution block)
- 60A Mini-ANL fuse (blue-installed in distribution block)
- Distribution ground block
- Firewall bushing
- 2 Butt-connectors
- 6' Length of split loom
- 10 Wire ties
Customer reviews for Crutchfield CKD4
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Features & Dimensions
Power & Ground Wire:
- Gauge: 4 AWG
- Wire Construction: Oxygen Free Copper (1862 strands) -*only the ground wire is tinned
- Length: 17' (Power), 3' (Ground)
- Diameter: 0.425"
- Terminal Type: Nickel-plated brass ring-terminal (on Power & Ground wire)
- Terminal Diameter: Outer Diameter = 0.635", Inner Diameter = 0.315"
- Gauge: 8AWG
- Wire Construction: Oxygen Free Copper (735 strands)
- Length: 6' (Power), 6' (Ground)
- Diameter: 0.275"
- Terminal Type: Not terminated
Fuse Holder:
- Wire Gauge: 4 AWG
- Fuse Type: Mini-ANL
- Fuse Size: 50A x 2
- Number Of Fuses: 2
Distribution Block:
- Input/Outputs: 1 Input (4 AWG)/2 outputs (8 AWG)
- Fuse Type: Mini-ANL
- Fuse Size: 40A, 60A
- Number Of Fuses: 2 (one each)
Grounding Block:
- Input/Outputs: 1 Input (4 AWG)/2 outputs (8 AWG)
- Number Of Fuses: 0
Remote Turn-On Wire:
- Gauge: 18 AWG
- Wire Construction: Tinned Oxygen Free Copper (16 strands)
- Length: 17'
- Diameter: 0.105"
Included Accessories:
- Grommet: 4 AWG firewall bushing
- Butt-connectors: 22-18 AWG butt-connectors (2)
- Loom: 6' length of 4 AWG split-loom
- Wire-ties: 10
Installation Notes:
- RCA cables and speaker wire not included (sold separately).
- Installation tools sold separately.
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Customer Q&A
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I opened the kit expecting the 4 gage wire to be stiff from being bound with twist ties. To my surprise it was as limp as cooked spaghetti making easy to work with. The fuse blocks are thick walled plastic,very solid and snapped together firmly plus they're attractive for showing your gear.
Ronnie from Greencastle Indiana