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NVX XW4WH20

20 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (White)

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• 20 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: White

Learn more about the xw4wh20
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List price $89.99
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NVX - Worth the Envy - Direct to Consumer Car Audio

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Current Promotions (2 offers)


Add an NVX XMANL04 ANL/Mini-ANL Fuse Holder to your wire purchase and save. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

NVX XW4WH20

25% off


Priced separately $72 98

Promo Savings of $3 25

Total price:

$69 73

Add an NVX XMFH48 AFS / Mini ANL Fuse Holder to your wire purchase and save. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

NVX XW4WH20

35% off


Priced separately $69 98

Promo Savings of $3 50

Total price:

$66 48

Product Highlights


• 20 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: White

Description


NVX brand icon

Authorized dealer

100% Oxygen-Free Copper Wiring

Here at NVX, we want to make sure you are getting the most for your money. We pride ourselves on providing quality products, especially our power and ground wires. All of our wires are made with 100% Oxygen-Free Copper with NO aluminum blend, unlike some of our competitors. Advantages to OFC include increased conductivity to carry more current to your amplifier, reduced strain on your vehicle’s electrical system, and improved heat absorption. Our power and ground wires are CTA-2015 compliant. At NVX, we are completely transparent with how many wire strands are in each cable, so you know exactly how thick each one is. Our competitors will never be that upfront with you.

Long-Lasting Design

Since our wires made with 100% OFC, we want to make sure that they last for a while and won’t corrode over time. That is why all our power/ground wires are silver-tinned, keeping them protected over time and not having to worry about them corroding. Like all of our other wires, the power/ground wires are engineered with our EnvyFlex technology. The outer jacket makes installation an easy process since it allows you to route the wire even in the tightest spots of your vehicle.

Not Just for Your Car

Looking to add an amplifier to your marine vessel? Our power/ground wires are BC-5W2 marine compliant making them useful on boats and off-road vehicles. These wires are built to withstand whatever the weather has to throw at them.

Product Details:

  • 4 gauge Power and Ground Wire
  • Made from silver-tinned OFC (100% Oxygen-Free Copper)
  • EnvyFlex True Spec wire for extremely flexible insulation
  • Up to 1500W RMS power handling capability
  • Exceeds AWG (American Wire Gauge) standards
  • BC-5W2 Marine Compliant for harsh environments
  • Available in other precut lengths
  • High Strand Count: 1862 strands for maximum conductivity
  • Length & Color: 20 feet (240 inches) | White
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Frequently Asked Questions (FAQ)


For a 20ft run, 4-gauge OFC is best for systems up to 1000W RMS. If you are pushing 1500W+, you will likely experience voltage drop. Solution: Upgrade to NVX 1/0-gauge (XW0WH20) to ensure your amp gets the current it needs to prevent clipping.
No. The EnvyFlex PVC is UV and heat-stabilized to prevent yellowing or cracking. Solution: If it gets dirty during installation, wipe the jacket with a mild degreaser and a microfiber cloth to keep your custom "show-ready" look pristine.
Use an NVX XFMANL or XMANL48 fuse holder with a 100A to 120A fuse. Always install the holder within 18 inches of the battery to protect the vehicle in case the wire rub-through causes a short to the chassis.
Do not trim the copper strands to make them fit. Solution: Use NVX 4-gauge wire ferrules. This bundles all 1,862 strands into a solid cylinder, ensuring a 100% connection and preventing "stray strands" from shorting against your amplifier's chassis.
Yes, but clearly label them. Solution: Use White Heat Shrink for power and Black Heat Shrink for ground at the connection points. This prevents accidental polarity reversal, which can instantly destroy your amplifier's internal circuitry.

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Specifications & Details


Power / Ground Cable Specifications
Wire / Cable Type
Power / Ground Cable
Length (ft.)
20 feet
Wire Gauge
4 gauge
Primary Color
White
Complies to AWG Standards
Yes
Wire Material
OFC (100% Oxygen-Free Copper)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

XW4WH20

Weight:

8.75lbs

Internal SKU:

xw4wh20

Internal Product ID:

105311

Product and How-to Videos


Customer Ratings & Reviews


NVX XW4WH20 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
4.8

Customer Reviews

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NVX power wire

I picked up a new vehicle and of course had install a sound system. I have completed many installs and used Sonic Electronix many times. Therefore, I have a collection of equipment. This time I just needed more power wire. The NVX is a great deal. OFC, nice variety of colors and it's flexible. Best value per foot. I have referred friends to Sonic Electronix and will definitely buy from them again.

By Jeff on January 23, 2023 Checkmark Icon Verified purchase

31 found this helpful


Great product

I was skeptical at first but after receiving the wire it's solid and I am satisfied.

By Andrew on October 5, 2020 Checkmark Icon Verified purchase

30 found this helpful


Great product

I was looking to add a power wire to supply power to my NVX 4-Ch amp and wanted to go with OFC. I have a car I previously got rid of and I had a power supply kit in that car to power my kicker amp and sub, so I had all the RCA's I needed and everything and all I wanted was the nice quality power wire and I have a town car so I needed a long wire and this was plenty for my need and works perfectly. Would certainly recommend

By Michael on May 30, 2016

29 found this helpful


By Aaron on March 13, 2026 Checkmark Icon Verified purchase


Great Quailty

Fantastic OFC wire. Does the job and well built

By Ice Cubed on September 26, 2025 Checkmark Icon Verified purchase




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