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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.
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.
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.
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.
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).
Used this amp with 1 12" sony sub in a sealed box connected to a stock stereo system to give it a little more depth in the music and its worked great and with tge remote power... Read morePublished 7 months ago by M.
I have two 12 inch kickers. Has taken it to its max to test and it pulls great. No complains yet.Published 11 months ago by Antonio Galan
I bought this amp because the cheap price tag. I figured it would be a decent starter system... Little did I know it would turn out to be by far one of the best amps I have used. Read morePublished 13 months ago by Tristan
This amp is cheap and works very well 2 ohms. I installed this amp on 2 dual 12 inch (250 RMS) each. Work pretty well. This is cheap but the value was good for the money. Read morePublished 18 months ago by Anderson Jogie
I actually love this amp. it powers my 2 12 inch diamonds like a champ. I had to get something this strong because the speakers have already blown out my 2 other amps but not... Read morePublished 19 months ago by Mr. Flemming
i really like this product, worth every penny. i show it off to every one that hears my system. good stuffPublished 22 months ago by joseph
Works great, and pretty cheap too.Don't really like the alan wrench bolts you use for the wiring though. but works goodPublished on January 21, 2013 by Dylan