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  • BOSS Audio NX1800.1 Onyx 1800-watts Monoblock Class A/B 1 Channel 2-8 Ohm Stable Amplifier with Remote Subwoofer Level Control
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BOSS Audio NX1800.1 Onyx 1800-watts Monoblock Class A/B 1 Channel 2-8 Ohm Stable Amplifier with Remote Subwoofer Level Control


Price: $94.95 & FREE Shipping
Only 11 left in stock.
Ships from and sold by caraudiodistributors.
1800-watt
  • Monoblock Onyx amplifier with MOSFET power supply
  • Delivers 1800 Watts at 2 ohms; 900 Watts at 4 ohms
  • Line and speaker level inputs with variable gain control
  • Built-in low-pass variable crossover; 18dB bass boost
  • Includes remote subwoofer level control
  • Amplifier Class: Class A/B
  • Technology: MOSFET
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Frequently Bought Together

BOSS Audio NX1800.1 Onyx 1800-watts Monoblock Class A/B 1 Channel 2-8 Ohm Stable Amplifier with Remote Subwoofer Level Control + BOSS Audio KIT2 8 Gauge Amplifier Installation Kit + PAC SNI-35 Variable LOC Line Out Converter
Price for all three: $116.85

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Product Information

Style: 1800-watt
Technical Details
Item Weight1 pounds
Product Dimensions11.7 x 2.4 x 10 inches
Item model numberNX1800.1
Chassis SizePlease fill in Unit Size
WarrantySIX YEARS
Weight9 Pounds
  
Additional Information
ASINB0032FOKMO
Best Sellers Rank #94,543 in Electronics (See top 100)
Shipping Weight9.2 pounds (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableJanuary 7, 2010
  
Warranty & Support
Warranty, Parts: Parts

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Product Description

Style: 1800-watt

Full Range, Class A/B Topology

A class A/B amplifier uses two groups of transistors and it is generally considered to be the best compromise of the two classes - A and B - put together. A pure class A amplifier typically has an enormous amount of current flowing through its output transistors with no audio signal. A pure class B amplifier has no current flowing through its outputs with no audio signal. A class A/B amplifier is much more efficient than a class A, but without the possible distortion of a class B.

MOSFET Power Supply

A Metal–Oxide–Semiconductor Field-Effect Transistor is a transistor used for amplifying or switching electronic signals, found in systems where information is processed or stored. We use them in our computers, telephones, game consoles, cars, electrical appliances, and, in this case, amplifiers. A MOSFET is basically an electrical switch with two possible states - on or off - that allows the flow of electrical current. The MOSFET performs its most important role in our D Class amplifiers by allowing or preventing the flow of power and creating an efficient amplifier.

General Features

  • Thermal and speaker short protection
  • Soft turn-on circuit
  • Remote turn-on/turn-off circuit
  • Gunmetal aluminum heatsink

Low And High Level Inputs

There are two different ways that you can get a signal into ONYX series amplifiers: high and low level input. Low level input is measured in voltages and comes in the form of RCA outputs from the back of your receiver, going to the RCA inputs on your amplifier. High level input is measured in wattages, and comes in the form of one positive and one negative wire from the back of your receiver, going to the input terminal of your amplifier in the same wire form. Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for the best audio performance. Note: Do not connect both the high and low level inputs from your receiver to your amplifier at the same time.

LED Power And Protection Indicators
Variable Crossover

Subwoofers reproduce sound based low range frequencies. This process is called the crossover effect and occurs because the vast majority of audio systems cannot cover the entire spectrum sufficiently to minimize sound distortion and maintain an appropriate frequency ratio.In the case of our NX1800.1 amplifier, a variable crossover is offered so that you, the listener, can have the ability to set the frequency at which the crossover occurs, thereby setting precise sound specifications on your subwoofer.

Chrome Plated RCA Low Level And High Level Inputs
Variable Bass Boost

With the NX1800.1 amplifier you have Variable Bass Boost, which gives you control of exactly how much bass you want to pump out to your subwoofer(s).

Remote Subwoofer Level Control

Customer Questions & Answers

Customer Reviews

This lasted a year and not a day more than that.
Nolan
I Have it running 2 duel 4 ohm subs rated 400 w rms wired to 1 channel at 4 ohms total.
gerry
Ive had this amp for about 6 months now and it has never gotten even warm.
Tristan

Most Helpful Customer Reviews

5 of 5 people found the following review helpful By Gambit on August 26, 2011
Style Name: 1800-watt Verified Purchase
This AMP delivers on time 66% of the time. What I mean by that is the connection shakes loose with the tremendous force it puts out. Pretty amazing!!
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3 of 3 people found the following review helpful By gerry on January 5, 2012
Style Name: 2800-watt Verified Purchase
Bought this amp for my son's car to add to the Boss chaos 4 ch amp that we are very happy with. I thought that if the onyx amp puts out 50% of the RMS rated power it would be more than enough, it DOES NOT. I Have it running 2 duel 4 ohm subs rated 400 w rms wired to 1 channel at 4 ohms total. I estimated power output at about 500w to 600w rms @ 14 v. I spent hours trying to get more power out it, used inputs from truck stereo, hooked directly to spare battery, change the way the subs were wired. NO DIF.
Wired to one sub at 2 ohms for a test and it defiantly over powered the 1 sub but no where near the power claimed. I believe it would run 2-400 w subs @ 2 ohms ok.
Wire connections on the amp are very nice.
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5 of 6 people found the following review helpful By Hittinhardsilverado on March 6, 2011
Style Name: 1800-watt
I used to be a skeptic and thought that BOSS was a cheap brand that only made junk. After using the PH1500 in my truck to run two Visonik 10" subs and being very satisfied I convinced a friend to get this amp and two Boss P106DVC 10" Subwoofer Dual 4ohm Voice Coil subs and we built a sealed enclosure for the and it hits hard and is crisp and clear. i was so impressed that i ordered the same setup for my truck and cant wait to get them installed. i am going to be running four of the subs and two of these amps in a 2006 silverado and will leave a review once i get it installed.
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2 of 2 people found the following review helpful By Cloud on July 4, 2013
Style Name: 2800-watt Verified Purchase
PROS:
--> Good Value. Many people get mislead by thinking power rating is RMS. Boss typically rate all their AMP at MAX peak and not RMS. If you buying this expecting power at RMS, you will be greatly disappointed. RMS for this AMP is more like 500W @ 4 ohms and 900W @ 2 ohms. This RMS power is a very good value for any AMP under $100.
--> This is fairly good quality and is a fairly heavy amp. Runs fairly cool at 4 ohms but any amps will overheat running at full capacity when in hot weather. Turn down setting in summer time.
--> Hookup and setting are very clean and neat.

CONS: Power rating a bit confusing.

OTHER THOUGHTS:
--> The NXD3500 had a recent price reduction to be around the same price on Amazon. At around the same price I would rather get the NXD3500 which is basically the same amp but also have class D (more efficient) and stable at 1 ohm.
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2 of 2 people found the following review helpful By Nolan on December 17, 2012
Style Name: 2800-watt Verified Purchase
This lasted a year and not a day more than that. Now I have definitely been a BOSS audio fan, and would choose them over any other brand for their exceptionally low prices and seemingly high standards. But when my amp started cutting out when i had it turned only up to 1/4 of the max then I started getting upset... I have never turned the gain on the amp to more than 1/2 and the gain adjustment knob that is connected to the cord that comes with the amp that runs up to my center console is rarely ever more than half itself either. Now that all other possibilities of bad wiring have been checked I will have to sadly say that this amp put itself to rest. Well, you get what you pay for.
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2 of 2 people found the following review helpful By jesse james on May 9, 2012
Style Name: 1800-watt Verified Purchase
I just recently bought this amp and got it connected to 2 12 jl audios and it pushes em great my nieghboors complain ...
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2 of 2 people found the following review helpful By Robert C. Lambert on March 15, 2012
Style Name: 1800-watt Verified Purchase
My buddy told me not to buy Boss; he stated the RMS rating is incorrect. I bought it anyway due to the price and couldn't be happier. It doesn't get hot, has a Bass Remote which is mounted under my dash and pushed a Boss 15" Phantom to it's max. My neighbor 3 houses down came over when I installed my amp and stated it woke him up from a nap, oops! Love the amp; well worth the money.
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2 of 2 people found the following review helpful By tim on August 18, 2011
Style Name: 1800-watt Verified Purchase
I've got this amp hooked up to two boss 800 watt 10" subs and it pushes them to the max, one of the best amps i have ever used even better than my old kicker 1600 watt amp, the only thing that kinda bothers me is that it gets hot quick, never had it over heat or even blow a fuse just gets hot to the touch fast, but i would still definitely recommend this amp for any hook up!
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