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NVX XW4BK20

20 ft. of Frosted Black True Spec 4-Gauge EnvyFlex Power/Ground Wire Cable

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• NVX EnvyFlex 4 AWG Power/Ground Cable
• Flexible Insulation and Multi-Strand Construction
• Durable Translucent Jacket
• Silver-Tinned 100% Virgin Copper
• True to Gauge

Learn more about the xw4bk20
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$44.99

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Product Highlights


• NVX EnvyFlex 4 AWG Power/Ground Cable
• Flexible Insulation and Multi-Strand Construction
• Durable Translucent Jacket
• Silver-Tinned 100% Virgin Copper
• True to Gauge

Description


NVX brand icon

Authorized dealer

100% OFC 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 Features:

  • EnvyFlex 4 AWG Power or Ground Cable
  • Extremely flexible insulation and multi-strand construction allows the cable to contort to any demand
  • Ideally suited for systems 400 - 1000 watts
  • Translucent jacket is durable enough to withstand extreme temperature and retain integrity
  • Made from silver-tinned 100% virgin copper for a pure uninterrupted transfer of power and signal
  • True to gauge measurement for precise fit
  • Preserves signal quality for excellent sound reproduction
  • Length: 20 feet
  • Strand Count: 1862
  • BC-5W2 Compliant
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

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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
Black
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:

XW4BK20

Weight:

3.30lbs

Internal SKU:

xw4bk20

Internal Product ID:

105315

Product and How-to Videos


Customer Ratings & Reviews



5 star
89%
4 star
11%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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NVX XW4 Wire

This Wire is a Copper Beast. The weight alone will confirm the difference between this and the Copper Clad Aluminum less expensive alternative. If aluminum wire or tinned wire is used, the gauges should be of an even larger size to compensate. ANY Power Drop will affect the Amp, and over time possibly a resistor or capacitor, A Dremel with a cut-off wheel and solder the Copper connector rather than attempting to crimp to give it a clean, solid appearance.

By 4budz on April 2, 2017 Checkmark Icon Verified purchase

44

found this helpful.

Great Value

Best price per foot out there. Very good quality, real OFC and not CCA. Nice looking covering.

By Z on March 30, 2018

43

found this helpful.

Great 4ga

I bought 20' of the blue. This was to match. Very happy with the quality.

By matt on March 26, 2018 Checkmark Icon Verified purchase

43

found this helpful.

Great wire value

I chose NVX for all my wiring needs; from the silver tinned OFC for power, ground, and speaker wires, to the RCAs. After my research, these were the wires to get; and the pricing here is great.

By Anonymous on September 1, 2019

41

found this helpful.

Tru 4 AWG wire

No problems here. This stuff is a bit cheaper than the Rockford stuff so I gave it a chance. I bought 2 20' sections so I can customized my installation a little better. This is the quality you want in your car.

By Anonymous on October 30, 2019 Checkmark Icon Verified purchase

39

found this helpful.

NVX XW4BK20

Nvx is always a great choice for wiring.......I have 0 gauge nvx w 1430 actual watts running through it and never gets warm.

By Casey on March 22, 2020 Checkmark Icon Verified purchase

37

found this helpful.

By Zack on May 5, 2025 Checkmark Icon Verified purchase

nice cable

Nice 4awg cable appears to be tinned copper wire.
it appears to be same size as other high quality 4awg wire i have so i think its true 4awg.

nice and flexible over all im please with the purchase.

By Matt on April 12, 2025 Checkmark Icon Verified purchase

Nvx who can ask more

Amazing price quality flexibility only i would like to see they match there install kit color. I needed a little more for install i was hoping keep same color running. Granted that the ocd kicking in.

By michael on December 7, 2024 Checkmark Icon Verified purchase



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• Flexible Insulation and Multi-Strand Construction
• Durable Translucent Jacket
• Silver-Tinned 100% Virgin Copper
• True to Gauge

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• Metallic Powder Blue 4-Gauge Power/Ground Wire Cable
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• EnvyFlex Outer Jacket • Length: 5 Feet

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NVX XW4WH5 5 ft. of Frosted White True Spec 4-Gauge Power/Ground Wire

• NVX EnvyFlex 4 AWG Power/Ground Cable
• Flexible Insulation and Multi-Strand Construction
• Durable Translucent Jacket
• Silver-Tinned 100% Virgin Copper
• True to Gauge

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