|Item Weight||1 pounds|
|Product Dimensions||11.7 x 2.4 x 10 inches|
|Item model number||NX1800.1|
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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- Amplifier Class: Class A/B
- Technology: MOSFET
- Number of Output Channels: 1
- Total Power: 1800 Watts
- Max Power @ 2 Ohms: 1800 Watts x 1
- RMS Power @ 4 Ohms: 900 Watts x 1
- Frequency Response: 15 to 250 Hz
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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.
- 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
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
Top customer reviews
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--> 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.
--> 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.
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.