Open Box, Great - NVX VADM4 v2 500W RMS Class D 4-Channel Amplifier

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NVX VADM4 Version 2 (VADM4v2) (Open Box, Great) Image 9 — NVX VADM4 Version 2 (VADM4v2) (Open Box, Great)

NVX VADM4 Version 2 (VADM4v2) (Open Box, Great) Image 10 — NVX VADM4 Version 2 (VADM4v2) (Open Box, Great)

NVX VADM4 Version 2 (VADM4v2) (Open Box, Great) Image 11 — NVX VADM4 Version 2 (VADM4v2) (Open Box, Great)

NVX VADM4 Version 2 (VADM4v2) (Open Box, Great) Image 12 — NVX VADM4 Version 2 (VADM4v2) (Open Box, Great)

Product highlights

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Learn more about the ls-vadm4-u8

Description

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Product Details:

V Series Class D 2 ohm Stable 4-Channel Amplifier
RMS Power Rating:

4 ohm: 80 watts x 4 channel
2 ohm: 125 watts x 4 channel
Bridged: 250 watts x 2 channel @ 4 ohm

Total power output: 500 watts
LED Power/Protect Light
Speaker-level (high-level) inputs (Requires adapter like the Kicker KISL)
4-way protection circuitry (thermal, overload, speaker short protection and DC offset)
Balanced differential inputs eliminate noise picked up by signal cables
Selectable crossover modes: FULL / HPF / LPF
Input sensitivity:

Low level and High level: 0.2 - 10 volts

Frequency Response: 20 - 20000 Hz
Total Harmonic Distortion (THD): <0.1%
Signal to Noise Ratio: >96 dB
Variable high-pass filter: 40 - 400 Hz
Variable low-pass filter: 40 - 400 Hz
8 AWG gauge amplifier wiring kit is recommended for installation
Dimensions: 6.49" L x 3.3" W x 1.48" H
Authorized Internet Dealer
1-year Manufacturer's Warranty
MFR #: VADM4v2

Product history:

	NVX VADM4 Version 2 (VADM4v2) (Open Box, Great) (newest, current model)
	NVX MVPA4 (previous model, replaced by NVX VADM4 Version 2 (VADM4v2) (Open Box, Great))

Specifications & Details

Key Features

Amplifier Key Features

Compact Design
Speaker Level Inputs
Weather-Resistant

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

80 watts x 4 channel

RMS Power @ 2 ohms

125 watts x 4 channel

Bridged RMS Power

250 watts x 2 channel

Power Specifications - Full Range Channels

Peak Power @ 4 ohms

160 watts x 4 channel

Peak Power @ 2 ohms

250 watts x 4 channel

Bridged Peak/Max Power

500 watts x 2 channel

Amplifier Specifications

Series

V Series

Amplifier Class

Number of Channels

4-Channel

Total Peak Power Output

1000 watts

Total RMS Power Output

500 watts

Maximum Input Gauge Size

8 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

Frequency Response

20 - 20000 Hz

THD at Rated RMS Power

<0.1%

Speaker Level Inputs

Optional (Requires Accessory Adapter)

Preamp Outputs

Built-in Crossover

Low-Pass (LP)
High-Pass (HP)
Full (AP)

High-Pass Crossover Frequency

40 - 400 Hz

Low-Pass Crossover Frequency

40 - 400 Hz

Signal-to-Noise Ratio

>96 dB

Remote bass/level controller

Optional (Accessory required and sold separately)

NVX XBRC: NVX XBRC Universal Bass Knob

Strappable

Sonic Certified Amplifier

Yes

Amp Bluetooth Connectivity

Hi-Res Certified

Low-Level Input Sensitivity

0.2 - 10 volts

High-Level Input Sensitivity

0.2 - 10 volts

What is in the box?

Paperwork

User manual

WITB: Amplifiers

Amplifier
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

Manufacturer

Customer Ratings & Reviews

NVX VADM4 Version 2 (VADM4v2) (Open Box, Great) thumbnail image

Overall rating distribution

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

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By feature average rating

Durability		5
Value		5
Features		5
Design		5
Usability		5

Customer Reviews

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Great for limited space setups

Bought open box, first one was DOA (static out of speakers with and without RCA input) but I was sent another open box which was in better condition. Connectors were all new and works as it should.

Amp sounds good, I have it running in 2CH mode running component 6.5 mid woofers and 3.5 inch mid+tweeter. Runs through crossovers.

Zero alternator whine through speakers (replaced an amp that had LOADS of feedback) so that's a huge plus. Gets warm but I'm not worried about it at all. The plug-in style inputs and outputs seem to be solid enough, I'm not worried about it at all. Installed in a BMW 325xi

By Andrew on December 21, 2025 Checkmark Icon

Verified purchase