NVX XKIT42 Full Spec 4 Gauge Review(Alternative)
We research and review everything that we share and recommend on our blog and try to keep things up to date. When you buy something through our links we may earn a commission. Learn more about our affiliate disclosure and about us.
When looking for an amp kit, you must know exactly what your sound system needs. When buying your amplifier kit, you have two choices: a full or a power kit. When looking for an amp kit, you must know exactly what your sound system needs. For you, the NVX XKIT42 might be an excellent choice. When buying your amplifier kit, you have two choices: a full or a power kit. The greatest amplifier kit is the SoundBox Connected 4-Gauge Amp Kit; you should think about it!

The components of a power kit include everything you need to power your amplifier; however, speaker wire and RCA connector cables are not included. This consists of various wiring accessories, cable ties, turn-on lead wires, ground cables, fuses, and fuse holders (grommets, wring terminals, connectors etc.)
NVX XKIT42 Full Spec 4 Gauge:

Specifications
- Complete 4 Gauge
- 100% (OFC) Oxygen Free Copper
- ANL/Mini-ANL Fuse Holder
This kit was developed by seasoned audio installers and sound engineers, emphasizing simplicity and realism. Many supplied wires have transparent insulation, making it possible to see how many wires are, how big they are, and which wire goes where.
This kit’s nickel-plated connections and oxygen-free copper wiring will shield your wires from corrosion-related signal distortion, maintain excellent sound quality, and increase lifespan. The flexible wiring prevents individual strands from snapping inside since they are longer than conventional kits, providing you the length needed for a full four-door system in even a large car. Some of the wires have been silver-tinned to increase their resistance to degradation. They are somewhat pricey, though.
This is the wire you need, in my opinion. Real copper, not copper covered. There won’t be any signal loss, unlike with copper-clad cables. No matter how attractive or affordable the copper-clad wires are, there is a 40% signal loss.
Only priced the copper-clad wires are; there is a 40% signal loss. As a result, you lose both quality and power. This means a 1000 rms amplifier can sound more like the 600 rms amplifier you just replaced. Remember that a turd is still a turd, polish or no polish. These wires, however, are excellent and composed entirely of copper.
- Fasteners and wire that resist corrosion
- Installation is made simple in all vehicles by the added length.
- The flexible wire shields the signal from being damaged by broken strands.
- Little price premium above value kits
Product Comparison:
The SoundBox Connected 4-gauge amp wiring kit is a very well-liked option because of its low cost and the variety of hardware. It includes every tool required for successfully installing 2-channel amplifiers and subwoofers in your car.

This kit has a 2,200-watt maximum handling capacity and is a terrific method to connect to and support your sound system. Using an inferior wiring kit to wreak havoc on your expensive sound system is the last thing you want to do. Even though the NVX XKIT42 4-gauge(walmart) isn’t very inexpensive, its performance won’t disappoint you. You’ll have everything you need to connect any amp up to 1000 watts RMS with the NVX XKIT42 kit.
Final Words:
NVX XKIT42 is constructed from superior silver-tinned copper that can resist the roughest environments. The package comes with a 20-foot power cable, a 20-foot remote lead wire, 40 feet of speaker wire, and a 3-foot main ground wire. This is a significant benefit in terms of length and one of the kit’s key selling points. Heavy strength distribution blocks, fuse holders, and all the terminals, connectors, fuses, and zip ties you’ll need are all included in a great value bundle of wiring built to last and provide top-notch performance.
FAQs:
How many watts can 4 gauge wire?
The 4 AWG copper wire has an ampacity of 85A at a temperature of 75C on average. This indicates that a 4 AWG copper wire can support up to 68 amps of current after applying the NEC’s 80 percent guideline. The 4 AWG copper wire ranges from 816 watts (12V circuit) to 16320 watts depending on the voltage (240V circuit).
What size wire do I need for 100 amp?
Either #4 copper wiring, #2 aluminum or copper-clad wiring, or a 100 amp breaker panel must be wired.