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NVX JAD800.4

True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

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NVX JAD800.4

True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

$199.99

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NVX XKIT44 4-Gauge 4-Channel Wiring Kit

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

$119.99

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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FREE Sound Dampening Kit with Your NVX Amplifier Purchase!

For a limited time, get a free NVX SDVK4 Versa Kit with a qualifying NVX Amplifier! Sound dampening will eliminate rattles and improve the sound and output of your system! This offer cannot be combined with any other coupons or offers.

19.99

40254

1733

NVX JAD800.4

$199.99

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NVX SDVK4

$19.99

Special Price $0 ($19.99 if purchased separately)

NVX SDVK4

• Eliminates Road Noise
• Quiets Vibrations
• Stops Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• One 18" x 32" Piece

25% off Amp Kit with purchase!

25% off on the NVX XKIT44 Amp Install Kit with purchase!

30.00

40254

440

NVX JAD800.4

$199.99

+

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NVX XKIT44

$119.99

Special Price $89.99 ($119.99 if purchased separately)

NVX XKIT44

• 4 Gauge 4-Channel X-Series Complete Amplifier Installation Kit
• For Car Audio Systems Up To 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

(Offer 1 of 2)

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$199.99

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NVX JAD Series Amplifiers

NVX's new line of JAD series amplifiers are perfect for those looking for a small footprint, high output amplifier. They boast an abundance of features such as variable high and low pass filters, bridgeable channels, and gain level control. The sleek design of the chassis combined with the illuminated badge makes these amplifiers eye-catchers. The JAD800.4 4-channel is ideal for running a couple of pairs of speakers or even a couple subwoofers. The broad frequency response of 20 to 20,000 hertz will ensure every note is properly reproduced. Get the justice you deserve with NVX today!




Sonic Electronix Power Certified Amplifier

NVX's JAD800.4 4-Channel amplifier is a Sonic Electronix Certified Amplifier. This amp's power output has been professionally tested with our SMD Amplifier Dyno, bringing you it's true power ratings. Learn more about this amp's Sonic Electronix Certified Power Here!


Impedance
Claimed Output
Certified Results
Dynamic Results
4 Ω
125W @ 14.4v
175W @ 14.75v
178W @ 14.81v
2 Ω
200W @ 14.4v
297W @ 14.64v
324W @ 14.77v





General Features:

  • Class D 4-Channel Amplifier
  • CEA-2006 Compliant
  • RMS Power Rating:
    • 4 ohms: 125 watts x 4 chan.
    • 2 ohms: 200 watts x 4 chan.
    • Bridged, 4 ohms: 400 x 2 chan.
  • Sonic Electronix Certified Power Rating*:
    • 4 ohms: 175 watts x 4 chan.
    • 2 ohms: 297 watts x 4 chan.
  • Non-regulated efficient S.M.P.S power supply design
  • Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • High speed rectifying diodes
  • Soft start turn-on
  • 4/3/2 channel operation
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Variable high-pass filter (20-400 Hz, 24 dB/octave)
  • Variable low-pass filter (50-500 Hz, 24 dB/octave)
  • Input Sensitivity: 200mV-6V
  • Frequency response: 20-20,000 Hz
  • 4 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier
  • Dimensions: 6-7/10"W x 10-4/10"L x 1-8/10"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Extend your NVX Manufacturer's Warranty to 2 Years when you install your new NVX amplifier with a compatible NVX power installation kit! This offer is only available through Authorized NVX dealers and will only last for a limited time. With this amplifier, the following power kits will qualify for the extended warranty program: NVX XAPK1D, NVX XKIT44, or NVX XAPK4

*The Sonic Electronix Certified Power Ratings listed are based on a test of a specific sample amplifier. Actual power ratings may slightly vary between amps.

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.

125 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
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

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
JAD (NVX)
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.

D
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 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.
4 ohms
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)
Full (AP)
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.

20 - 400 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 - 500 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.
106 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.
25A x 3 
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
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
85%
4 Star
15%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.9
Features
4.8
Design
4.9
Usability
4.8
Bradley

Fletcher, NC

Overall
Durability
Value
Features
Design
Usability
Clean and delivers

December 17, 2014

Does the job with a small footprint but big clean power. Still new but no issues.

Suggestions for improvements... With all these "clone" amps such as PPI, Hertz, Arc in this price-point it'd be difficult to improve the performance. That said, I can see the value in a few items especially for small-footprint amps. Values I like include 1. all wiring on one side with easier access from overhead while installed. 2. easier access to mounting holes without a shroud around it. 3. differential-balanced inputs. 4. Go to sleeves in a 1/0 hole for big wire connections instead of a butt out plug going into a 4ga hole for 12v/ground terminals. Truly just nitpicky stuff, which makes you see what separates a $250 amp from a $500 amp. Awesome amps as is and good looking clean appearance.

Now I know these things would be a completely different design given these are sourced boards similar in layout to many seen. So they're just improvement suggestions should the design of the board allow.

But as is, with both NVX JAD amps I have, I say overall BRAVO! They sound great, appear to be very well engineered and constructed, and if they hold up well, it was a good purchase and I'm an NVX fan. They're as big a hit as their X-Series speakers which I hope NVX continues for a long time.

51 of 91 found this helpful

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Jonathan

Calera, AL

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Durability
Value
Features
Design
Usability
need to know

June 22, 2014

to the point, bought a mb quart rm amp, was good sounded ok, till(i got the nvx jad 800.4) this thing sounds like a really good class ab amp. doesnt get above 38C thats while playing abt 2/3 volume.great amps so far. clean clear crisp tight controlled good crossover. what more could you ask for

51 of 93 found this helpful

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Stephen

Madison, AL

Overall
Durability
Value
Features
Design
Usability
Good amp at a good value.

October 10, 2012

Running two pairs of image dynamics speakers off of this amp. Have the speakers bridged to two channels so they get perfect power and sound awesome and still have two channels to do with as I please.

40 of 72 found this helpful

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Robert

Canada

Overall
Durability
Value
Features
Design
Usability
Up in Canada Eh!

May 22, 2014

Ordered the NVX JAD 800.4 due to the reviews I read. I was hoping for something powerful and compact. As soon as I got the 800.4 I was surprised how small it actually is, and the RMS rating is 125W but actual RMS output per channel is 140W!!! Tones of power for any speakers you want!!
Only downfall, no pass-thru to hook up the JAD 1200.1 Im going to be getting soon.
NVX JAD800.4 is HIGHLY recommended for any needs: great price, small size, and super powerful!

49 of 91 found this helpful

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nathan

atlanta, GA

Overall
Durability
Value
Features
Design
Usability
Impressed already

September 6, 2013

I got this amp as an open item. the design is immaculate and I'm impressed with the ease of ordering. I am excited to have this in my car, and will provide a more detailed review once I'm done installing.

46 of 85 found this helpful

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Ravi

New York

Overall
Durability
Value
Features
Design
Usability
Great sound quality

April 5, 2013

this new line of amp is great quality.The only thing this 4 channel doesnt have an RCA output. I usually buy kickers amp, but I wanted to try this new amp line. Its worth the money and the amp takes up almost 50% space. Get it you wont be disappointed.....

39 of 73 found this helpful

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Ryan

oklahoma

Overall
Durability
Value
Features
Design
Usability
used in a Malibu wakeboat

August 13, 2012

OK, in the never ending quest to get a clean 400w+ to ea REV10, i bought a NVX 800.4 for $225 shipped, to replace my Fosgate T600-4 I had powering them. I bought the Sonic Electronix 3yr service plan on it for an extra $25, i knew I'd be putting it thru its paces. I wanted more power to the Rev10s, but also wanted to do it more efficiently in the Class D, and also run cooler. Temps here are 110+ every summer, so you are at a disadvantage running ABs, eventually they will cut out on you when you push them hard.

Initial impressions: its a small amp which is great. I can easily fit 2 of them where my single T600-4 used to be. Makes me wanna get another set of Rev10s just because the amp would fit so nicely in there.

Performance: It IS better than the T600-4. I am happy, its good quality power. Sounds clean and it is an imporvement over what I had. Dont use the high pass filter, run it full range(i also installed the Exile ZLD ( ), the ZLD may also be influincing my tower zone music quality some). If I had to guess, its around 320w at 12.5v ish and right at 410w at 14.4v. With 3 25A fuses 12vx75 divided by 80% efficient = is where I am getting these guesses on power ratings from. It does come with 4ga power inputs with a 1/0 ga adapter... I ran a real thick 4ga, more comparable to 2-3ga to power it. My 4ga would not fit into their 4ga inputs so I used the 1/0 adapter. Sturdy gear, does not feel cheaply made. Terminals are strong, well made. No hiss, or anything like that. I have my gains set at about between 4 of 10.

sidenote: f'n get your wiring diagram correct NVX! Bridged x 2 is the OUTER 2 speaker terminals for front and rear, not the inner 2. lost me 20 mins and 2 pounds of sweat in a full planking contorsionist position pulling the amp back off and rewiring it again and putting it back in there. if their directions were right I wouldnt have had to do that.

sidenote: the NVX DOES get hot. supposedly with the Class D, they are supposed to run much cooler, not the case here. It gets warm and stays warm just powering it up and light music. I ran it hard for about 5 mins (100degs outside), and was warm/hot to the touch. Not so hot you couldnt hold your hand on it, but it did suprise me it was hot. Never went into protect mode or anything. My 2500w Re Class D sub amp wired at 1 ohm stays ambient temps pretty much unless you was doing hairtricks with it, and was hoping for that. I ran it for about 2hrs at medium party cove volume, it did well. impied in this is if you install, use some spacers to get it off the carpeted amp board some so it can breath.

So all in all, I'd say its a great buy for $225. Could you find a better amp to deliver a little more power 400-500w range? Yes, but most of those are in the $500+ range. they pair nicely with the Rev10s and would suffice for 90%+ of folks at a huge discount compared to the other 400x2 class D's. It def got warm, but never cut out and I run my gear hard. I will repost if I ever get it to cut out this summer.

46 of 87 found this helpful

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Ryan

Arvada

Overall
Durability
Value
Features
Design
Usability
Everything it is advertised to be!!!!

July 19, 2015

I bought this amp about a month age and have it prudish ins nvx 5 1/4 component speakers and the nvx vsp 6x9's and it is so clean sounding and very powerful it goes great with my nvx vcw 152 in the trunk get this amp it is worth every penny!!! Sonic is the best!!!

26 of 48 found this helpful

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Angel

Danbury, CT

Overall
Durability
Value
Features
Design
Usability
High end amp at a good price

July 7, 2014

I have this amp paired up with DLS U6i speakers and a set of Pioneer tweeters taken from a Pioneer component TS C1720C. The Pioneer mid bass driver was replaced with a pair of Kicker Comp VT6s- 61/2. I have always been a fan of JL amps and with this set up I have 2 - the other is the JL XD 600 for bass. Originally, the amp powering mids with this set up was an old JL 300/4 amp. The old amp after 15 yrs went in to protection mode and influenced by Sonic consumer reviewers I decided to save money and make a change. The goal was that if the experiment did not work out I would get the old JL amp fixed. As it turned out, there was no need to go back to the JL amp. The NVX had a very compatible sound in terms of clarity but was much louder. To compensate for the higher and brighter mids the gain from the little JL XD amp (powering a 15 inch RE sub) had to be raised. The end result was that the imaging in the car was broadened. Indeed, a fuller spectrum of frequencies was achieved -as well a broader stage. Also noteworthy, is that the NVX is smaller than the JL. Thus, everything said about this amp is true and I also strongly recommend this product. It is definitely a high end amp at a very good price.

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Anthony

Saint Louis, MO

Overall
Durability
Value
Features
Design
Usability
Really Impressed

March 19, 2013

I was looking for an amp to power my hertz hsk165 components and my hertz ecx690 6x9s. I had the JL Audio 400/4 powering them but i wanted them alittle louder but didnt wanna lose sound quality. I was gonna get the Polk PA 4000.4 but Sonic was outta stock so this NVX amp was the next best option. I was worried because I've never heard of NVX but man im impressed. The Quality is just as good if not better than my JL amp. So far I love this amp. Im gonna make a youtube vid in bought a month with my whole system... its gonna be the Chamelleon Impala

47 of 91 found this helpful

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Mike

Alabama

Overall
Durability
Value
Features
Design
Usability
Good, Solid Amp...and powerful

March 12, 2013

I've given 2 months. So far, very pleased.

I'm not one to write reviews, but they have been so helpful to me, I felt compelled. I didn't know much about this brand when I bought it except for a little research and the reviews. I needed a small amp to fit in my Honda CRV. I wanted 120 watts X 4 to fully crank out my Polk MM6501 component speakers. I hoped this amp would do it.

It certainly plays hard and loud. It effortlessly takes the volume to concert levels and then some. It gave me plenty of head room. Tone-wise , it seems pretty flat - which is good. I like bass, and when i turn up the bass it feeds the woofers full bodied power. no sense of roll off anywhere.I have heard amps that were "warmer" sounding. That said, I really like this amp and would recommend it to others without hesitation.

36 of 69 found this helpful

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Lonnie

Canada

Overall
Durability
Value
Features
Design
Usability
Less is more

June 23, 2014

Loads of power for a couple of fosgate 8" mids and a couple of fosgate p.1's both 8" subs and fit with ease behind the rear seat of my 4 door colorado

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Fax

Va.

Overall
Durability
Value
Features
Design
Usability
Box opening

January 24, 2014

All the NVX products I've bought seem to be top quality so that's why I bought 4 NVX amps.

55 of 108 found this helpful

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shanon

bronx, NY

Overall
Durability
Value
Features
Design
Usability
great product

October 2, 2015

This nvx amp is a great product. Looks n feels durable love the matte finish. This amp is great if ur looking for decent power in a small footprint, has some nice features but the switches look n feel cheap but would definitely recommend. I haven't hooked it up yet to listen to it but might give a feed back after I do, don't forget the good folks @ sonic great customer service great n prices

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Califlub

Temecula

Overall
Durability
Value
Features
Design
Usability
Very Happy so Far

April 18, 2013

I purchased the JAD800.4 along with a JAD1200.1 to power my Infinity Kappa speakers and MB Quart subs. My first choice was the Infinity Kappa Five amp, but I had problems with two of them and was given a store credit. Second time around I decided to go with two amps (4/1channel) hoping for better performance / reliability.
I read a lot of mixed reviews on Class D amplifiers. Many people think that A/B has better sound quality, while others prefer the small footprint, high power / low heat output of Class D. Being an engineer I reviewed the specs and was very impressed with the signal to noise as well as the THD compared to Class A/B.
NVX is a relatively new brand so I turned to Google and found several good reviews. I was looking at the Polk amps and NVX seems to be very similar, with the controls panels and specs being almost identical (and NVX was in stock).
Out of the box the amps had a solid feel and clean look. They have a soft-start feature that powers them up a few seconds after they get power. This gives you time to start your engine without drawing any current. Very nice.
The sound quality is excellent - better than other A/B amps I had in the past. More than enough power - I haven't even cranked them all the way up yet and don't think I'll ever have to.
I have a second MB Quart 10 RLP on back order because with one sub I was getting distortion before I could feel the bass. It turns out that the Infinity Kappa Five amp was the weak link. The JAD 1200.1 pushes one sub very well.
The only negative I have to say about these amps is that the adjustment dials take a philips screwdriver, and they do not have an arrow or line showing you what it is set to. This made it a little inconvenient to tweak the crossover points.

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Glenn

Grants Pass, OR

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Excellent Amplifier

January 10, 2016

This amp has performed flawlessly. The size is incredibly small, but the amount of power it produces is amazing. Also, the sound quality will rival almost any class A/B amp on the market today. I would definitely recommend this amp to anyone who is in the market.

0 of 0 found this helpful

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Jesse

Beaver, OH

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Very powerful amp!

December 31, 2015

Great product, very powerful amp only problem I had with mine is a had to return one and get a new one cause the RCA cable hook ups broke off and pulled out of the amp so they sent me a new one in it place! The new one is working fine now, I'll see if this one has they same problem in the future or not I hope not cause it is a very nice amp!

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Aaron

N Las Vegas NV

Overall
Durability
Value
Features
Design
Usability
Pretty good for the price

December 15, 2015

I've had it for a few weeks now and have been pretty happy with it. That said, it's shut down on me a few times. It is not being pushed very hard, gains were set to about 80w per channel at 4 ohms. When it shut down the voltage was in the mid 13's pretty consistently, and it was certainly not very warm as it was in the mid 50's outside and I drive with the windows down, seat down so the amp gets lots of airflow. aside from that, it performs very well. It doesn't fade out after time as another big name brand did.

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Matthew

Cartersville, GA

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Find it on sale and get it

December 13, 2015

For the size, power and flexibility compared to 125W X 4 AB amps, this thing is great. Even better when you can pick it up on special for 20% off. I replaced a 25 year old A/D/S/ PH15 because it was showing it's age (I've been pushing it hard for the last 7 years) and I decided it deserved a spot on a shelf reserved for that hardware you love. So far the NVX is okay. The lower mids are a bit tubby sounding but surprisingly, the treble is right up there with my much loved AB amp. I'm very impressed. Note that I can't comment on durability as I just got it installed today. It seems like it'll be fine but I'm not certain. If I'm forced to give it a score on that aspect it'll be 1 star, not because I find it bad but because I had to put something.

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Kelly

Ben wheeler, TX

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Top of the line

November 30, 2015

Great Amplifier. The best amp you can buy for performance. Puts out tons of power, my mids and highs are very loud and crystal clear. Pros: outstanding power and stays cool. Looks cool, adjusting the sound is fairly easy. Cons: installation is more difficult than most amps. Either you have to angle short screws or find extra long screws to mount amplifier to the floor board

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Anthony

Odessa Texas

Overall
Durability
Value
Features
Design
Usability
hell yea

November 26, 2015

awesome amp have it on 2 8" pioneer pro series 2 6 3/4 pioneer pro and 4 31/2 pioneer pro tweeters and no joke youmcan hear it over a 1/4 of a mile away and it's clear and clean sound no distortion I love this amp and if u don't buy one ur a fool

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Tim

Mishawaka, IN

Overall
Durability
Value
Features
Design
Usability
Made my image dynamic 6x9's sing!

November 20, 2015

I was all over the place with my amp situation. All I knew is that I wasn't satisfied with the amount of base I was getting out of my image dynamic 6x9s only receiving if I had my way 22 W RMS from my head unit.I couldn't believe the difference this and made now I have 125 W RMS at 4 ohms pumping to each one of my four channels. I went from having almost no bass and underpowering my speakers to giving them all they need to see their magic. If you like loud distortion free music to impress your friends this is the amp for you.

Size: About the size of a piece of paper
Heatsink: great, had it play for an hour starter and was just slightly warm.
Power: 125watt @4ohms 225watts@2ohms
Value: A+ payed $160 with coupon you can find a better amp for the price imo.
Concerns: mine was about the brand. NVX?? Who the are they?? They were a very nice surprise.

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-Stov3top-

Saint Paris, Ohio

Overall
Durability
Value
Features
Design
Usability
This thing is a little powerhouse!

November 15, 2015

I have had this hooked up in my vehicle for a few months now, and I couldn't be happier. Even under load for extended periods it has barely even broke a sweat, still cool to the touch. It puts out way more than the rated specs too, so that is a MAJOR plus in my book. My #1 recommendation for anyone looking for a stout 4 channel amp. Love how much you can fine tune the crossovers too, Love this thing!!

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Dylan

Fulton, Illinois

Overall
Durability
Value
Features
Design
Usability
NVX D Class Four Channel

November 30, 2014

This amp is insanely small but really puts out the power. It doesn't have a big draw on it and is lightweight and have a white led on it which is pretty cool. Wish it had a copy/mirror switch that would allow to copy two of the channels. Love that it comes with a wire reducer block, really came in handy. It was kind of cool that the set screws were Phillips instead of Allen wrench, they are convenient but easier to strip. The gains have clicks instead of just being smooth so it is a bit easier to match gains. Overall a very good amp.

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Cody

Omaha, NE

Overall
Durability
Value
Features
Design
Usability
Very impressed

September 24, 2013

The amp is very well constructed and tiny- works well in vehicles with small spaces like my 2008 dodge ram pickup. I have it feeding my polk audio components and the amp never gets hot. Stays cool to touch.

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dagwood

chicago il

Overall
Durability
Value
Features
Design
Usability
Top of the food chain

April 29, 2015

Listen I received my amp yesterday had it installed yesterday wasn't pleased that evening the way it sounded. I started to have my hifonic 1000 Zeus reinstalled and send this back to sonice ,but I called the guy at nvx he gave me some instructions and O my goodness !!!!! That little amp plays 4 6x9 pioneers 5 ways 100rms each, on 2 channels and 4 6.5 four ways pioneers at 60rms each on the other two channels, and the gains are just a litte over a quarter turn out I'm thinking about removing the 6.5 and replacing them with 4 more 6x9s 3 ways.Like the late James Brown would say this lil amp is super bad. stop reading and buy!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Bryan (AudioPfeil)

San Rafael, CA

Overall
Durability
Value
Features
Design
Usability
Clean & solid

August 6, 2014

I have 3 other amps (Kenwood's and a Hifonics) and this one feels way more solid and well manufactured. The potentiometers are solid, the frame is durable... And it sounds incredible. I am running 4 6.5" for my doors on this and I love it.

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Chameleon Impala

Saint Louis, MO

Overall
Durability
Value
Features
Design
Usability
Very Impressed sofar

March 18, 2013

I had the Jl Audio 400/4 powering some Hertz hsk165 components and the hertz ecx690 and it was ok... but i wanted more power because my speakers can handle itbut i didnt wanna lose quality like my Jl amp, so I was gonna to gey the Polk pa4000.4 but Sonic was outta stock so this was the next best option based of the stats, being cea certified and the price. I never heard of NVX but i researched and found they are fairly new so I decoded to give them a shot. OMG im impressed with thisover my JL amp... I dont know how durable it it but its a really good probut overall everywhere else... gotta give it 5stars... in a month im goin yo puy my system on youtube

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Andrew Wiley

Essex, MD

Overall
Durability
Value
Features
Design
Usability
Awesome Amp

November 29, 2012

Running Infinity Kappa 692.9I's and Infinity Kappa 60.9cs's off this amp and MAN, they sound awesome. No sub yet, but people ask me what kind of subwoofer I have running. This thing never overheats, and the lit logo looks awseome. HIGHLY recommend this item.

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RON DOG

CALIFORNIA

Overall
Durability
Value
Features
Design
Usability
AWSOME AMP

March 2, 2015

FIRST TEST IN MY WIFES FJ CRUISER WOW VERRY CLEAN AND POWERFUL SURPASSES A JL FOR MUCH LESS SOUNDS LIKE POWER FROM THE GODS EVERYONE NEEDS ONE IM AN AMP NUT MY BOAT RUNS 3 TWO IN MY WORK TRUCK NOW I MIGHT BE CHANGING ALL TO NVX ...THANKS SONIC YEP IM HAPPY.

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BassHead

Baton Rouge la

Overall
Durability
Value
Features
Design
Usability
Good Amp for the Money

February 22, 2014

I bought this amp to replace a Kicker ZX350.4.
This really sounds much better and It runs cool as a fan after hours of use The sound quality is amazing to say i don't have high end speakers
I would recommend this amp to someone that doesn't 500$ to send on a JL Audio or Rockford amp.

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Roberto

Chicago, IL

Overall
Durability
Value
Features
Design
Usability
great amp

August 26, 2013

This little amp has outstanding power runing 4r alpine 6x8 typr

35 of 72 found this helpful

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Ravindra

Richmond Hill, NY

Overall
Durability
Value
Features
Design
Usability
small chassis

July 30, 2013

The amp seems to be a pretty good built amp. Nice finish. This amp can fit in small areas you couldn't before. Im not sure if it does put out the wattage that was stated because I don't have a meter. I have this amp pushing a pair of 6.5" pro Beyma mids and a pair of sound stream bullet tweeters (Big ones) at 4 ohms. Will be connected some more speakers to get that full 200 rms a channel. The only I dont like it doesnt have a rca output, you might want to think about that. Good enough for me

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Music Lover

bennettsville, SC

Overall
Durability
Value
Features
Design
Usability
great amp

July 28, 2013

I owned this amp for almost two months and I must say it is a small powerful amp. It sounds great paired with my infinity front and rear speakers that are 100rms. There is a frequency multiplier button that may come in handy for someone else. Nicely built, gets a little warm, hasn't shut down while playing at high volume. It does lack rca output jacks for anyone wondering. I am very satisfied. And of course, got it from Sonic!!

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Robert

currie, NC

Overall
Durability
Value
Features
Design
Usability
jad800.4

February 10, 2013

Amp is running 4 door speakers in a crew cab GMC.sounds good, running it a 4 ohms.happy with purchase and would recommend. As far as durability only time will tell since i havent had amp long but seems to be built good.

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KC64

New Port Richey, FL

Overall
Durability
Value
Features
Design
Usability
Good things in a small package

October 6, 2014

I picked up this amplifier to replace my blown out Kicker ZX650.4, and the result is ideal.
The amplifier is physically much smaller than my previous amp, allowing me to relocate it to where it can't be seen should I choose to, when before I only had room to mount i on the side of my trunk, which looks a bit ugly and clunky. I would much rather have a clean stealthy install.
Next, this amp provides a lot more power.. Much cleaner signal, much less draw on my battery

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Alexei

Russian Federation

Overall
Durability
Value
Features
Design
Usability
Small but powerful

September 25, 2012

Bought this amp for my DLS Reference R6A and a pair of DLS R6A midbass drivers. Had been sounding very impressive for a week before went dead. Shipping back costs half of its price. Had to repair it in Moscow as was agreed with NVX and Sonic people. Got a nice and useful gift from NVX for this. Now can enjoy plenty of dB in good quality. Strongly recommend this amp as well as other NVX products.

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hassan

Springfield Gardens, NY

Overall
Durability
Value
Features
Design
Usability
beast

March 27, 2015

this amp is small but big in power it gives a clean sound quality and the cross over is very flexible

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nick

miami gardens, fl, FL

Overall
Durability
Value
Features
Design
Usability
Great amp

December 13, 2012

i got it could't believe how small it was an easy to use

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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 $119.99

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

Get everything you need to hook up your new amplifier!

Your Price $79.95

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

Your Price $79.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

XS Power BIG3XS 100% OFC 1/0 Gauge Big 3 Upgrade Kit

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

Your Price $99.99

NVX XFLOC4

4-Channel Line Output Converter with Digital Noise Filter + Line Driver

Your Price $14.99

PAC LP7-4

L.O.C. PRO Series 4-Channel Line Output Converter with Remote Turn On

Your Price $32.95

AudioControl LC6i (Gray)

6 Channel Line Out Converter with Internal Summing & 5-year warranty*!

Your Price $149.99

NVX Universal Remote Level Bass Control

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

Your Price $7.99

XS Power XP750-CK

XP750 AGM Battery + Installation Kit for 1000-1500 Watt Audio Sytems

Your Price $149.99

Kinetik HC1200-BLU

Kinetik BLU Series 1200 Watt 12V High Current AGM Car Audio Power Cell - Battery

Your Price $119.99

Stinger SPP680

680 Amp SPP Series Dry Cell Battery with Protective Steel Case

Your Price $119.99

Belva BB1D

1.0 Farad Capacitor with Digital Red Display for up to 1000W Max

Your Price $24.99

NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

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 XWS1625 16 AWG Speaker Wire

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

Your Price $15.99

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

Stinger PG12

4 Gauge Water Tight Firewall Bushing

Your Price $5.99

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

NVX XRTC4 Solid Copper Ring Terminals

4 Gauge Solid Copper Ring Terminals with Shrink Tubing

Your Price $5.99

NVX VUBT2

Universal Bluetooth Audio Receiver

Your Price $29.99

NVX XUBT3

Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob

Your Price $74.99

Items we think you might want
VSP69 + VSP65KIT main
NVX V-Series Car Speaker System

• Includes NVX V-Series Coaxial Speakers and Component System
• NVX VSP65KIT 6.5" Component System
• Peak Power: 140W
• RMS Power: 70W
• NVX VSP69 6" x 9" Coaxial Speakers
• Peak Power: 400W
• RMS Power: 200W

Your Price $239.98

XSP6KIT main
NVX XSP6KIT

• Peak Power: 230W
• RMS Power: 115W
• Silk Dome Tweeter
• Mounting Depth: 2-15/16"
• Finely Milled Pulp and Egyptian Papyrus Fiber Cone
• 4 Ohms Impedance
• Sensitivity: 90dB

Your Price $479.99

Browse 11 questions and 70 answers
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Why did you choose this?
Sonic Electronix Store
price, dyno proof, signal to noise, many positive reviews
steve r on Jan 29, 2016
"it came highly recommended and its a sonic certified amp
Marvyn K on Dec 25, 2015
Sonic recommended and certified. NVX has top quality products.
Charles O on Jan 21, 2016
I own a few nvx products and i recommend them constantly I feel they are just as good as some other brands and the cost is much more reasonable.
Candace B on Nov 16, 2015
The manuals explains speaker connections for bridged mode, but doesn't mention proper interconnect hookup for bridging. What's the appropriate RCA connection setup for two channel bridged mode?
Bradley B on May 6, 2015
NVX JAD800.4
NVX JAD800.4
NVX JAD900.5-ob
NVX JAD900.5-ob
Best Answer: The speaker connections for bridged mode were incorrect in the manual that came with my 800.4. I exchanged email with NVX and they advised to use the outer terminals i.e. RR- and RL+ for the rear speaker in bridged mode. I use the amp in 3 channel mode and setting the bridge mode switch to the centre (3 channel) position resulted in mono sound from the font speakers - not what I wanted! It works ok in the 4 channel setting and all 4 RCA inputs connected to my headunit. For 2 channel operation you may need to experiment - start with your left RCA signal into the L front input and your right RCA signal into the L rear input. Set the bridge mode switch to 2 channel. Connect your left speaker to the front FR- and FL+ terminals and your right speaker to the rear RR- and RL+ terminals. I think that will work. If not, you might need to get 2 Y-cables to split your RCA signals to both L+R inputs and set the bridge mode switch to 4 channel.
Reply · Report · Scott S on May 10, 2015
· Add Answer · I Have This Question Too (3)
The Alpine SPR-68 and the Alpine SPR-60C a good setup with this amp??
A shopper on Jul 5, 2015
Best Answer: form what i can see with the specs of the speakers this amp will do the job with headroom to spare. mine works sweet with my x65 components rated at 65 watts rms. set your gains and crossover for the speaker freq. resp. and power level and you should be happy. for best results use a multi meter and set your max output levels to feed the rms levels to the speakers. this amp has a lot of power with the correct input voltage. iv taken the time to test the output level vs gain pos. i know what volts out i have with each click which makes any changes with ohms or speakers as simple as a click. hope this helps
Reply (1) · Report · JONATHAN D H on Jul 5, 2015
· Add Answer · I Have This Question Too (2)
I'm looking for a good amp for my alpine type r 6x9 (rear) & typer r 6.5 components in the front. Already have the speakers (not installed yet) & have just been trying to research good affordable amps. Has anyone tried this amp with any alpine speakers? Would love to here some feedback on this amp because it has such great reviews. Not to familiar with NVX. Thanks
A shopper on Jan 24, 2016
Best Answer: I've been installing car audio for friends, family and myself for over 30 years! I have to say that this is probably the best amp I've ever purchased. I did a complete make over on my Mercedes Benz E-430 Sport and I have this amp pushing four (4) Rockford Fosgate 6 3/4 front door/rear deck speaker and two (2) 3 1/2 Rockford Fosgate in the rear door. The clarity is unmatched by anything I've ever installed. You definitely will not be disappointed.
Reply · Report · Roderick W on Jan 25, 2016
· Add Answer · I Have This Question Too (0)
Can you recommend components for front and 6.5 coaxials for rear that would work well with this amps power rating?
Thomas M on Jul 30, 2014
Best Answer: it depends on your budget. i have the nvx xsp6act component set running active with two channels running the tweeters and two channels running the midbass speakers. the guys at nvx said these speakers would handle the amps power as long as the gains wer set correctly. my headunit puts out 4v and i have the gains set for 5v so im not using all the power the amp has to offer and its redicousily loud when i want to show it off. awsome setup. i also have the vsp65kit and vsp65 coaxial speakers on the same amp in another car with the same gain setup and it is running the components on two channels and the coaxs on the other two and it has a verry good sound. if you can do the x components either active or passive and give them about 40 days of play to break in and im shure you'll be very happy with your setup. hope this helps you.
Reply · Report · JONATHAN D H on Jul 31, 2014
· Add Answer · I Have This Question Too (0)
would this nvx amp be good 2 run 2 sets of nvx VSP65 speakers or is the amp have 2 much rms for thos speakers ?
Matthew D on Nov 12, 2015
Best Answer: I'm currently using my nvx jad800.4 to power four Infinity 6x8 6929c.f. speakers. These are 2ohm coaxial speakers. If you take some time to set up crossover for front and rear channels you should be fine. I don't expect sub bass from my full range speakers so I get great mid range and highs. This is a powerful amp despite its small size. I have to keep gains set less than half. Great amp for money.
Reply · Report · Alexander H on Nov 13, 2015
· Add Answer · I Have This Question Too (0)
Will this amp work with the Kicker 6.5" and 6"x9" CS series speakers? The 6.5" speakers have an RMS of 100 watts at 4 ohms and the 6"x9" have an RMS of 150 watts at 4 ohms. I am concerned about over or under powering the speakers and was looking for an amp that would work well with these speakers.
Greg G on Oct 2, 2014
Best Answer: I am running two pair of 6.5 alpine r components on the front channels... Two pair of alpine r 6x9 on the rear channels... Two ohm load each channel. No problem at all, clear crisp and loud. This amp is a beast. Your set up should work just as good at four omh. If anything it might overpower your set up. Make sure your gain is set correctly and you will be amazed by how it sounds.
Reply · Report · Gamaliel C on Oct 2, 2014
· Add Answer · I Have This Question Too (0)
single ended or differential inputs?
A shopper on Oct 22, 2015
Best Answer: has RCA in.....no RCA out.....in other words....you can not run a signal from this amp to another.....
Reply · Report · cd s on Oct 23, 2015
· Add Answer · I Have This Question Too (0)
I have two pairs of Infinity Kappa 682.11cf that I plan on installing in my 2007 mustang. I am looking at using a 4 channel to power them. The two that I am considering are Infinity KAPPA FOUR and the NVX JAD800.4 does anyone have any thoughts on this? I also plan on running a mono for the subs Infinity Kappa 100.9W.
Zach H on Apr 1, 2015
NVX JAD800.4
NVX JAD800.4
Infinity KAPPA-FOUR
Infinity KAPPA-FOUR
Infinity 682.11cf
Infinity 682.11cf
Best Answer: I have used many of the nvx products and have been nothing but satisfied. I be leave the nvx amps are underrated on the power I can't see going wrong with it
Reply · Report · justin m on Apr 1, 2015
· Add Answer · I Have This Question Too (0)
Can this amp be run at 2 ohms bridged? I'd like to run the front channels independently (200w X 2 @ 2 Ohms), and bridge the rear to run a 2 ohm sub @ 400 watts.
Jason F on Mar 11, 2015
Best Answer: Hello Jason,

Bridging will obligate the system to No Less than 4ohms. 2ohms cannot and should not be done.
Reply · Report · Customer SStaff on Mar 12, 2015
· Add Answer · I Have This Question Too (0)
What "type" of crossover is in this amp (listed as 24db HP or LP) Linkwitz etc? if a person wishes to more precisely set the frequency between tweeters and mids for example to a certain frequency by a particular db or voltage drop at the exact freq?

I'm toying with the idea of using the amps built in crossovers by themselves instead of outboard DSP. From the limited manual and documentation, with "BP" listed on the switches, is it correct that the JAD800.4 can band-pass with the HP and LP settings.. Possibly to run Mids from highpassed 80hz to lowpass 2500hz from the rear channels, then tweeters highpassed at 2500hz from front channels?

Sorry that was two questions. :)
Bradley B on Dec 22, 2014
Best Answer: the frequency that you would want to calibrate the high tweeter and mid speaker drivers as well as the base subwoofer sweetest spot should be set from a primary pre amplifier spectrum crossover for best performance device not the built in crossover in the amplifier .I know the amplifier has great fidelity output but the crossover for high/mid/sub would work best with an isolated high/mid/sub crossover with specific signals run to input for best performance kelly

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Reply · Report · Don M on Dec 22, 2014
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Product Summary

Manufacturer

Model Number

JAD800.4

UPC

784620026458

Weight

5.50lbs

Internal SKU

jad8004

Internal Product ID

40254

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: NVX JAD800.4

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