440W RMS Full Range Class D 2-Channel Car/Marine/Powersports Amplifier

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• 440 Watt True RMS Output!
• Marine Certified 2-Channel Micro Class D Amplifier
• 150W x 2-Chan. @ 4 ohms
• 220W x 2-Chan. @ 2 ohms
• 440W x 1-Chan. @ 4 ohms
• 3-Way System Protection
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint

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NVX VADM2 Amplifier with Amplifier Wiring Kit

440W RMS Full Range Class D 2-Channel Car/Marine/Powersports Amplifier





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Product Details:

  • Marine Certified 2-Channel Class D Car Amplifier
  • Peak Power Rating: 880 Watts
  • RMS Power Rating:
    • 4 ohms: 150 watts x 2 chan.
    • 2 ohms: 220 watts x 2 chan.
    • Bridged, 4 ohms: 440 watts x 1 chan.
  • Cutting edge Micro Class D technology allows amplifier to be extremely compact
  • LED power (blue) and protect (red) indicators
  • Conformal Coated Marine grade circuit board
  • Balanced Differential Inputs, to eliminate noise picked up by signal cables
  • Speaker-level (high-level) inputs
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity: 0.2V-5V
  • Selectable crossover modes: FULL / HPF / LPF
  • Variable high-pass filter (40-500 Hz)
  • Variable low-pass filter (40-500 Hz)
  • Frequency Range : 20 - 20KHz
  • CEA-2006 compliant amplifier
  • Dimensions: 6.8"L x 3.3"W x 1.5"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
NVX VADM2 owner’s manual

Specifications & Details

Power Specifications - Full Range Channels
RMS Power @ 4 ohms
150 watts x 2 channel
RMS Power @ 2 ohms
220 watts x 2 channel
Bridged RMS Power
440 watts x 1 channel
Power Specifications - Full Range Channels
Peak Power @ 4 ohms
300 watts x 2 channel
Peak Power @ 2 ohms
440 watts x 2 channel
Bridged Peak/Max Power
880 watts x 1 channel
Amplifier Specifications
V Series
Marine Certified
Amplifier Class
Number of Channels
Total Peak Power Output
880 watts
Total RMS Power Output
440 watts
Maximum Input Gauge Size
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
Speaker Level Inputs
Preamp Outputs
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 500 Hz
Low-Pass Crossover Frequency
40 - 500 Hz
Signal-to-Noise Ratio
105 dB
Remote bass/level controller
Fan Cooled
CEA-2031 Compliant
Sonic Certified Amplifier
Amp Bluetooth Connectivity
Hi-Res Certified
What is in the box?
User manual
WITB: Amplifiers
Mounting screws (4)
High-level input wiring harness w/ molex connector
Allen wrenches (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details



Model Number:




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Customer Ratings & Reviews

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Small but Mighty

Nice amp works Great Really small but lots of power

By Kyle on April 24, 2020 checkmarkIcon Verified purchase


found this helpful.

Powerhouse! Honest First Impression Install Review

I bought this amp to replace a broken Focal 2.350 2 channel amp installed in the fairing of my Harley Davidson Road King Classic. The amp powers two Focal 6x9s.

The first thing I noticed is the mounting holes on this amp are way too difficult to access for mounting onto a custom flat plate inside my fairing. There is just no way to mount the amp with that sized, tiny lock nuts and bolts. When I say small, I mean small. Then the other problem is limited access on the speaker wire side for inserting any bolt with lock nut because the speaker/power mounting is tight fitting where the holes are. So I drilled out the holes and used regular sized hardware, but even then it was difficult.

The instructions need to mention the speaker connection is removable for inserting the stripped wire with a tiny flat head screwdriver. It took me a little while, but I figured it out on my own. Remember to hold it upside down or use that tiny flat head to push the speaker wire tabs open.

I love that NVX included the RCA with molex adapter. I just plugged that in. Took 3 seconds.

When I finally got the whole thing installed and powered it up, I was absolutely flabbergasted on how crazy loud, crystal clear, and powerful this amp is with two high quality speakers rated at 150w RMS power handling @ 4 ohms. Ridiculous! Probably the best I've heard in a long long time. i even realized my Focal 6x9s are probably not good enough, if I want the bass to pound even better. Treble and Mid-range are spectacular loud and clear as a bell. I maxed out my Aquatic AV to volume level 40 and I could have kept going forever with this amplifier. I couldn't do that with my Focal amp, which cost more than double, is double the size, double less in quality, and isn't marine certified.

Now let's see this amp last on a motorcycle. Most can't and are vibrated into premature shorts on the 12v main power inputs. Time will tell.

Because of the mounting holes/tab situation, I subtract a star. If NVX makes little tabs with bigger holes for mounting and throw in the bolts with lock nuts/washers, this would rate a 10 out of 10.

Great work, NVX!

By SAS on October 3, 2020


found this helpful.

Beyond Happy

I was hesitant to put the VADM2 in my pristine all original 550i (E60). After replacing the factory subs they clearly needed more power, but, BMW being BMW leaves no room for typical after-market accessories. Therefore, space is/was a driving requirement for a 300W amp.

The VADM2 is perfect. Small enough to mount over the Antenna decoder and leave plenty of room for the PnP Technic wringing kit. ABSOLUTELY NO ALTERNATOR WHINE. Now the Logic 7 sounds like a rolling studio. Beyond happy. The VADM2 stays relatively cool and provides more power than my ears can handle.

If you have space limitations, want high quality gear, and are borderline audiophile that wants to maintain OEM look don't hesitate.

Curtis was a huge help in making recommendations and providing options. Top shelf customer service. Thx

By Rob on July 24, 2019 checkmarkIcon Verified purchase


found this helpful.

Big Power Small Footprint

Power is great, especially when it's small. What makes this a slight bit better than the B52, is the standard speaker wire outputs versus the four pin molex style connection. Make it much easier to double up connections and go 2 ohm.

By Anonymous on April 16, 2019 checkmarkIcon Verified purchase


found this helpful.


This little amp rocks. I accidentally fried my old MVPA4 amp. I had already purchased another amp to replace it (Soundstream 4ch.). This little amp is going on a bicycle with a couple of PRV 6.5" speakers. It is beyond stoopid loud/clean/clear/etc. Gets just a little warm after extended use. Currently have it on a motorcycle powering (2) 6x9's. Super loud/clear/etc. It would be a great motorcycle amp for 2 fairing speakers! VERY happy with this amp. If you are looking for a great, little 2 ch. amp, definitely give this one a try! I've been very happy with the NVX amps I've had (the fried one mentioned above was from 'driver error'!)

By Anonymous on September 1, 2019


found this helpful.

throttle out

Put this on my bike to power my handle bar speakers and it offers plenty of power to still sound good even with the throttle open

By Anonymous on February 14, 2019


found this helpful.

Awesome power for small foot print!

I needed to power up the 6 X 9's on my bike's batwing and with limited space, the NVX VADM2 fit the bill. I would absolutely recommend this product! Time will tell with durability.

By Mark on February 22, 2021


found this helpful.

Terrible design

I bought this amp from sonic almost a year ago and it’s been nothing but trouble. I have a very high sq system and needed a strong midbass amp. Very quickly after the initial install I began to hear crazy noise. The rca input leads have a chinzy connection to the amp and I was able to move it around and temporarily cure the problem. It kept getting worse and eventually makes a LOT of noise no matter what.
I emailed NVX asking how to order a new rca harness and got nothing. I said it would be nice to have one shipped for free but I didn’t really care about the couple of bucks, nothing. I rarely have the time to get into my system and this is a huge problem that I’ve given up on. Sure Covid and short staff but there’s been ample time for a response, nothing…
I would’ve bought more amps if they gave any support whatsoever on their products. So now I have wasted $200 on a garbage piece of equipment and need to make time to order a different brand and install. I can’t speak for the other NVX products but I would think twice about investing in the brand.

By Steven on October 28, 2021


found this helpful.

Compact power

This two channel amp produces good power and is small. Can hide amp easily with no one seeing it

By Justin on July 16, 2019 checkmarkIcon Verified purchase


found this helpful.

Good Power - good price

I got mine discounted due to some other issues with NavAtlas but still for the retail price not a bad amp at all! 150RMS @ 4 ohms x2 is very nice. Running 2 JBL X towers 8" with out skipping a beat!

I wish they would include a small screw driver though for the speaker connections as if you dont have a tiny flat head you better get one.

By Jonathan on April 5, 2022 checkmarkIcon Verified purchase


found this helpful.


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• 3-Way System Protection
• 8 Gauge Power and Ground Inputs
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