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Massive Audio NX4

1600W Nano Block Series 4-Channel Amplifier

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List price $399.95

$159.95

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General Features

  • Massive Audio NX4 Nano Block Series 4-Channel Car Amplifier
  • RMS Power Rating (14.4V):
    • 4 ohms: 100 watts x 4 chan.
    • 2 ohms: 200 watts x 4 chan.
  • Max power output: 400 watts x 4 chan.
  • MOSFET power supply with high grade switching devices
  • LED power/protect indicators
  • Designed to fit into restrictive or limited spaces while still delivering staggering amounts of power
  • Ultra efficient Nano Technology power supplies and endless possible installation scenarios
  • Monoblock operation
  • Extreme power in a small footprint
  • Ultimate mounting flexibility (stackable, line array, side mount)
  • Mill Spec double sided PCB with SMD parts
  • Built-In noise reduction circuitry
  • Heavy duty aluminum alloy heatsink are anodized in a Raven Black finish for extreme heat dissipation
  • 3-Way protection circuitry (short circuit, overheating and Low Voltage)
  • Chrome-plated RCA level inputs
  • Chrome-plated screw terminals
  • Adjustable high-pass filter (50-750 Hz, 24 dB/octave)
  • Adjustable low-pass filter (50-750 Hz, 24 dB/octave)
  • Subsonic Filter (50-750 Hz, 24 dB/octave)
  • Frequency response: 15-25,000 Hz
  • THD (Total Harmonic Distortion): <0.05%
  • Signal-to-Noise Ratio: >80 dB
  • Max Voltage: 15V
  • Max RCA Voltage: 5V
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • CEA-2006 compliant amplifier
  • Also found as: Massive Audio SKUNX4
  • Weight: 9 lbs
  • Dimensions: 10"L x 5-1/2"W x 2-1/8"H
  • 1-year Sonic Electronix warranty

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

100 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

200 watts x 4 channels
RMS Power @ 1 ohm

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 1 ohm, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

Not Stable
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

400 watts x 2 channels
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison.

400 watts x 4 channels

Amplifier Specifications

Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

AB
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

1600 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

800 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
<0.05%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 750 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 750 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
50 - 750 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
100 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
Not specified by manufacturer
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
73%
4 Star
20%
3 Star
0%
2 Star
7%
1 Star
0%

Average Attribution Rating

Durability
4.2
Value
4.4
Features
4.1
Design
4.5
Usability
4.7
SALCEDO PRO SOUND

Orlando, FL

Overall
Durability
Value
Features
Design
Usability
Not As Good As You Might Think!!!!!!!!!

September 3, 2011

I bought this amp to swap out my boston acoustics gt 4100 and i got a big surprise when i installed the massive nx4. Immediately after the hook up i was anxious to see how the massive would hold up with the 2 ohm load hook up. At first it was doing fine but after a few minutes the amp started warming up and clipping, even going into protect mode! THE VOLUME WAS TURNED UP TO HALF WAY. Man was i surprised that the GT 4100 blew the massive audio away by a long shot!!! Let me remind you I've been doing this for many years now and as the years have gone by things have gotten smaller but not necessary better. I don't know maybe i got stuck with a defect or something? I am a STRONG supporter of old school brands like hifonics/ kicker/ cerwin-vega/ alpine/ kenwood just to name a few. NX4 didn't perform to specs.

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day

Jamaica

Overall
Durability
Value
Features
Design
Usability
massive

April 26, 2014

This amp is small but has more power than u think if u dont own one I think u should get one.

0 of 0 found this helpful

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massivefusion

justice, IL

Overall
Durability
Value
Features
Design
Usability
A+++ AMP!!!

September 30, 2013

Great amp... tons of power for the price... I had the volt model and blew it in a week,,, this amp is amazing

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Deadman audio

Dumas,tx

Overall
Durability
Value
Features
Design
Usability
Great product!!!

September 17, 2013

I already own two of nano n4 before ordering the nano nx4. Great amps, the power they have is top of its game. Never had a problem with the amps.

0 of 0 found this helpful

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Merrix

smyrna, GA

Overall
Durability
Value
Features
Design
Usability
sweet amp!

September 17, 2013

Just installed this amp last weekend and it sounds great. I love the ability to mount it in different areas of my truck. The sound is clean coming through my ck6x components. I would recommend this to any body looking for a great amp with great Sounds!!

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pablo

Fairfax, VA

Overall
Durability
Value
Features
Design
Usability
NICE LITTLE AMP BUT HORRIBLE PERFORMANCE

August 29, 2013

I got this amp a few months ago and it was fine at first because i only had 2 speakers connected to it. now i put in my new sony speakers in the rear 100 watt rms each same as the front speakers at 4 ohm each. So now the amp gets too hot it goes into protect mode all the time. its getting very annoying now so i do not recommend it. even my old pioneer amp got hotter and did not go in protect mode right away. i only changed it because i wanted more power now i regret the change. i spent good money on this amp. now im just goin to replace it for a fully digital class D 4 channel amp and who ever has this should replace it too.

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scott

Wayne, WV

Overall
Durability
Value
Features
Design
Usability
Performs great!

September 5, 2012

Product seems to perform great, Love the loud clear sounds and would recommend it to anyone. Small space with with big Quality.

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Skip

Port orange, florida

Overall
Durability
Value
Features
Design
Usability
Wicked

April 25, 2012

This amp is totally worth the money! Loud,very clear and awesome features. Incredible small, and easy install. I have had other more expensive amps and this honestly sound just as good if not better. I would highly reccomend this amp to everybody. My music came alive and crystal clear.

0 of 0 found this helpful

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N8

TX

Overall
Durability
Value
Features
Design
Usability
Great Amp!

April 19, 2012

Got this amp because I wanted something that I could put under the center console in my Suburban, wanted to keep it looking stock. This amp fit perfectly under the console and sounds great! Very happy with purchase.

0 of 0 found this helpful

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Mark

Tulsa, OK

Overall
Durability
Value
Features
Design
Usability
Great Amplifier

March 19, 2012

This is a great amp! It is worth the extra money you are going to lay down for this piece of equipment.

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Gary R

Visalia, CA

Overall
Durability
Value
Features
Design
Usability
GREAT AMP

January 2, 2012

I've used this amp for a year now and I have not had any problems with it. It sounds great and is super small compared to other amps of the same power capabilities. The pros are the small footprint and they are real efficient and the cons are the rca inputs are cheaply made. I had to remove the rca's and the silver cap came off. But all in all I would highly recommend this amplifier.

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Luis

san diego, CA

Overall
Durability
Value
Features
Design
Usability
Pretty good amp.

December 7, 2011

I own 3 of these all bridged to a 3way active frontstage and I've been happy with them. They do close to rated but not quite what their specs say they do. They also do heat up a bit. I have mine in a place with not much air flow but I do have fans to help them cool down a bit and I haven't had any issues whatsoever. Sound quality, which is what my system is currently geared towards is pretty good, at extremely loud volumes the amps don't struggle. Pretty decent amp for the price with the best thing about them being the size.

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STP

Houma,La.

Overall
Durability
Value
Features
Design
Usability
Good amp

November 3, 2011

I've recently purchased this amp and it sounds good, not great. I fried it after about a month I received it. It didnt protect until it was too late. Just sent it back. Ive replaced it with a RF T600-4 power series which is a better amp (it sounds great) but alot more expensive. Guess you get what you pay for.

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Dadio

Utah

Overall
Durability
Value
Features
Design
Usability
Very Happy with my new amp

October 31, 2011

The massive amp works great! I was already planning on getting a different amp so at the advice of my stereo guy I chose a massive brand and I'm extremely happy. Thank you to Sonic Electronix for the quality products.

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Lee

Knoxville, TN

Overall
Durability
Value
Features
Design
Usability
Lots of punch in a very small package

March 13, 2011

This is a terrific amp. It's durable, small and puts out nice power. I'm using it to power two 6.5" components (with 2" tweeters) and two subwoofers. It's the only amp small enough to fit in my MR2 Spyder - under or behind the seat. It has plenty of power and has never once overheated, despite having almost no air flow. I didn't know much about Massive Audio before I bought this NX4 (just that my local car audio shop liked working with them). I will certainly use their products again.

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Accessory Tools and Products

Accessories added

NVX XKIT44 4-Gauge 4-Channel Wiring Kit

4-Channel 100% OFC Complete True 4 Gauge Amp Kit with RCA Cables and Speaker Wire

Your Price $99.99

T-Spec V8-4DAK 4-Channel 4-Gauge Wiring Kit

Get everything you need to hook up your new amplifier!

Your Price $89.95

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $59.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

Your Price $7.99

Small Universal Remote Level Bass Control

The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.

Your Price $11.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

NVX XIX45 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $34.99

StreetWires ZN9 Series Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!

Your Price $99.95

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1250 Speaker Wire

50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $29.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

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Product Summary

Manufacturer

Model Number

NX4

UPC

623169630422

Weight

6.80lbs

Internal SKU

nx4

Internal Product ID

27732

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Massive Audio NX4

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