NVX VADM4 v2 Model 4-Channel Class D Amplifier 1000W Peak, 500W RMS, 2/4-ohm Stable, High/Low Pass X-Over, for Car/Truck/Marine/UTV/Motorcycle (VADM4v2)
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Availability:
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Arrives
Saturday, Oct 4
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Style: 500W Compact 4-Channel
Features
- Powerful Performance: Experience the NVX VADM4's impressive power, boasting a peak power rating of 800 Watts and RMS power output ranging from 80 watts x 4 channels at 4 ohms to 125 watts x 4 channels at 2 ohms. Enjoy robust and reliable audio performance for your car, marine vessel, or powersports vehicle.
- Compact Design:Utilizing cutting-edge Micro Class D technology, this amplifier achieves an extremely compact form factor, measuring just 6.49" L x 3.3" W x 1.48" H. Enjoy powerful sound without sacrificing valuable space in your vehicle or marine setup.
- Marine Certified Durability: Built with a conformal coated marine-grade circuit board, the VADM4 amplifier is designed to withstand the rigors of marine environments, ensuring durability and longevity even in harsh conditions.
- Advanced Features: Benefit from LED power and protect indicators, as well as 4-way protection circuitry (thermal, overload, speaker short protection, and DC offset) for enhanced reliability. Balanced differential inputs and low-level RCA inputs ensure seamless integration with your existing audio system.
- Versatile Audio Customization: Customize your audio experience with selectable crossover modes (FULL, HPF, LPF), variable high-pass and low-pass filters (40-400 Hz), and a wide frequency range of 20-20,000 Hz. Achieve precise control over your sound output for an optimized listening experience.
Item dimensions L x W x H: 6.8 x 3.3 x 1.5 inches
Voltage: 12 Volts
Manufacturer: NVX
Maximum Supply Voltage: 12 Volts
Mounting Type: Surface Mount
Item dimensions L x W x H: 6.8 x 3.3 x 1.5 inches
Voltage: 12 Volts
Manufacturer: NVX
Maximum Supply Voltage: 12 Volts
Mounting Type: Surface Mount
Brand: NVX
Number of Channels: 4
Output Power: 125 Watts
Package Type Name: Retail Box
Specification Met: Cea-2006, Marine-grade
Global Trade Identification Number: 62
UPC: 818060019562
Item Weight: 1.93 pounds
Product Dimensions: 6.8 x 3.3 x 1.5 inches
Item model number: NVX VADM4v2
Manufacturer Part Number:
Date First Available: February 7, 2019
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Oct 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 1100W 5-Channel
Very pleased. Replaced an Alpine amp with this, and believe it or not, this was way better sound quality. I always had a "ring" around 2khz with the Alpine, this thing is just smooth frequency response and power to spare. I've had one of these installed in one vehicle for over a year now, VERY pleased. I have another one about to go in another car and can't wait to get it hooked up. I also have several NVX speakers now, and those too have provided excellent sound quality and overall value.
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Reviewed in the United States on September 12, 2025 by Guy in Pennsylvania
Finally got a small footprint amp for my DIY ammo can speaker build. I am using it "full range". Install and connections were a breeze. The input sensitivity pot was turned down out of the box...had to turn it up. No big deal. THE GOOD: - Powerful-powerful-powerful (150w RMS x 2 @ 4 ohms) is an understatement. - Clean. I was worried about Class D amplification sounding choppy or weak...this amp is pure butter - Small. Perfect for ammo can builds or where space is limited - Efficient power and power consumption...won't bleed your battery down BOTTOM LINE: I have 40+ years working with amps and speakers and have a "critical ear". This amplifier is a beast of power, clean sounding, and does the job vs amplifier costing 3x as much (and larger Class A/B amps). You'll be surprised how powerful it is and what it can do. UPDATE (23 Sept 2020) - It does run very warm if left on all the time. "Hot" if you are thumping high volume levels. You might consider mounting this amp with good air ventilation and on a surface that won't be impacted by the heat. Still 5/5 stars...it hasn't let me down UPDATE (11 May 2021) - Bought a second one and bridged two of these amps in one of my ammo can builds. TWICE THE POWER! So, now I am running well over 300 watts (RMS) @ 4 ohms. These amps are beasts of power. Get this...using a standard 30-amp fuse and 10 AWG power cables. zero issues. These amps sound great. Again, I thought Class D amps would not produce clean sound, I was wrong
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Reviewed in the United States on April 19, 2020 by Chris DIYer
Style: 2700W Monoblock
Yes very well built amp
Reviewed in the United States on September 16, 2025 by Edward
Style: 500W Compact 4-Channel
7/5/2021 Update After 1.5 years, the amp not only failed on me, but also caused a scary, terrible electrical smell. In those 1.5 years, the amp was barely used because of the pandemic. I would say it ran maybe 4 hours, and that would be generous. The amp was installed inside the boat, and the boat itself was stored in my driveway with a cover. The manufacturer’s website had abundant strict language saying they basically wouldn’t do anything in my situation, which leads me to believe this probably happens a lot. Unfortunately, I bought 2 of these. I ended up replacing them both with 2 MTX MUDD100.4, which is basically the same output, and I only paid $225 for them, which is not much more than what the NVX goes for today. Back when I bought the NVX, they were only $150, which seemed to be a bargain. Now that they’re basically the same price as the MTX, you may as well get MTX’s solid reputation. From now on, I’m no longer getting off-brand stereo equipment. They just don’t last. To put it in perspective, I used to have a NON-marine grade JL Audio amp in that same location that lasted 10 years! And it still works except for 1 channel! And that was NON-marine grade! The supposed marine grade NVX lasted just a fraction of that time and completely burned out. Do yourself a favor and spend a few extra bucks today to save yourself from an eventual electrical fire and replacement a year later. —————————————————— Original Review I never heard of NVX before, so I did some research and found that they are a reputable company. YouTube dynos show that they exceed their rated specs, so I went forward and got one to power my Wetsounds REV8’s (bridged to 2 channels). This amp has a really small footprint, which makes mounting in limited spaces very easy. I was skeptical at first when running this at a very low volume and the amp getting really hot to the touch! I would run the speakers at a whisper and it would still be super hot! I did some more research and I saw that amps can run above 130 F and would be considered just fine, yet this temperature would be pretty much unbearable to touch. I also read that small amps will run very hot. Knowing this, I kept with it. Despite the heat this thing generates, I rated this 5 stars because it sounds absolutely spectacular. Previously I had a MBQuart amp powering these speakers, and they would always have a bit of static in the background. With the NVX, static was completely absent, and the REV8’s would sing very loud, but very clear with no distortion. I was so impressed with how they sound, I just ordered a second amp to power my in-boat speakers. I plan to run 2 pairs of speakers in parallel on 2 channels for a 2 ohm load, and another pair on the last 2 channels for a 4 ohm load. They are currently powered by a JL Audio 6 channel amp (one of channels went out), which has the same static that the MB Quart amp had. I’m hoping the NVX will finally rid this for me, and I’m also hoping they’ll make my speakers sound as clear as the REV8’s. Long term reliability is still in the air for me, so I’ll update if I run into any issues. So far though, NVX is now my “go to” amp, and I have owned JL Audio, Kenwood, MB Quart, Rockville, Planet Audio, Cadence, and Profile amps in the past. Their price is near rock bottom, sounds fantastic, has a tiny footprint, and everything I’ve read on them is positive. The big name companies should watch out..
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Reviewed in the United States on November 7, 2019 by Rob C