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100% Copper, True Spec 4 Gauge Single Amplifier Wiring Installation Kit with Speaker Cable (No RCA)

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Amplifier Kit Features:

  • 4 Gauge Power Amplifier Installation Kit
  • Designed specifically for car audio systems up to 1000 watts RMS
  • Made from silver-tinned 100% virgin copper for a pure uninterrupted transfer of power and signal
  • The solid brass and satin-chromed ANL/Mini-ANL Fuse Holder offers ideal protection for high powered systems
  • Strand Count: 1862
  • BC-5W2 Compliant
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Kit includes:

  1. 20 ft. (6.1 meters) Frosted Blue 4 gauge power wire with seamless crimp ring terminal
  2. 3 ft. (.91 meters) Frosted Gray 4 gauge ground wire with seamless crimp ring terminal
  3. 20 ft. (6.1 meters) Clear 18 gauge remote lead wire
  4. 40 ft. (12.2 meters) Frosted Gray/Blue 16 gauge speaker wire
  5. One NVX XMANL04 ANL/Mini-ANL Fuse Holder with 100 amp Mini-ANL fuse
  6. One 1/2" black rubber firewall grommet
  7. Two 4 gauge spade terminals
  8. Two black 16 gauge nickel-plated spade lugs
  9. Three blue 16 gauge nickel-plated spade lugs
  10. One black 18 gauge spade terminal
  11. Two 18 gauge red butt connector
  12. Ten 6" black zip ties


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating

Browse 5 questions and 49 answers
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Why did you choose this?
Sonic Electronix Store
Josh R on Aug 15, 2016
Best price/quality ratio for a 4awg ofc kit with quality speaker wire. Cables and wires are reviewed to be flexible and insulation isn't unnecessarily thick. Power wires come pre-terminated so I don't have to mess with soldering terminals at home (the best way to do it).
Brian B on Apr 27, 2016
Quality at a reasonable cost
Pete S on Jun 17, 2016
I Only Use NVX. Period
Tim B on Mar 9, 2016
Before I order. I would like too know, if I was too buy the NVX XAPK4, Amplifier Wiring Kit, with no (RCA) Cables, would the NVX XIX23 (RCA) Cables be a good match for it?
william on Jun 10, 2015
Best Answer: I found the XAPK4 amp kit to be a good value with high quality wires. I did not purchase the RCA cables (didn't need them for my application) but based on the amp kit quality I would have no problem purchasing any NVX wires from Sonic - the descriptions on the site are pretty spot-on.
Reply · Report · Mike on Jun 11, 2015
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If I was to buy the, NVX XAPK4, what brand (RCA) Cables by NVX XAPK4, should I buy? I see a lot of them. I just want to buy the ones that give good signal. But not spending to much for them.
A shopper on Jun 8, 2015
Best Answer: Yes. Great quality for a 750w sub. I would buy again. I looked at a lot also and I think this system doesn't come with RCAs, but bought some for 10 bucks and saved a ton on the wiring kit.
Reply · Report · Ryan H on Jun 8, 2015
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I am going to hook up a Boss PF2600 amp. I need to know what the diameter of the wire is? To ensure that i can run the power and ground to the amp and that they will connect up to the amp.
Ace K on Jun 11, 2015
Best Answer: It's a 4 gauge amp kit so the power and ground wires are 4 gauge.. The actual diameter of the wire i am not sure.. I'm sure it will efficiently power your boss amp though.
Reply · Report · Ben P on Jun 11, 2015
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Question? Will the NVX XAPK4 100% Copper, True Spec 4 Gauge Single Amplifier Wiring Installation Kit with (No RCA) Work better or have a better performance then Belva BAK42 Complete 4 Gauge Amplifier Wiring Kit with 2-Channel (RCA) Interconnects (CCA Wiring) On my KickerZXS1000.1 I was going to use my old (RCA) Wire that I already have on it, and just buy the NVX XAPK4 100% Copper, True Spec 4 Gauge Single Amplifier Wiring Installation Kit with Speaker Cable (No RCA) Do you think it will be a bad Idea to use my old (RCA) Wire on it, and just buy the NVX XAPK4 Amp Wire Kit. to use for it or should I just use, Belva BAK42 Amplifier Wiring Kit? that comes with the (RCA)
william on Jun 5, 2015
Best Answer: Hello William,

For future inquiries, you only need to include the model number, not the entire description as well. =]

The NVX kit will absolutely provide much better performance than the Belva kit. Simply because OFC is better than CCA . I'll let Aaron from kicker explain :

As for the RCAs. Clearly we can't gauge how "good/bad" your RCAs are, but if you feel they're ok, then stick with them. There is no doubt, however , that RCAs play a HUGE part in how a systems signal is processed.
Reply (2) · Report · Rick MStaff on Jun 5, 2015
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Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: NVX XAPK4