BOSS Audio CXX1204 Chaos Exxtreme II 1200-watts Full Range Class A/B 4 Channel 2-8 Ohm Stable Amplifier with Remote Subwoofer Level Control
Metal€“Oxide€“Semiconductor Field-Effect Transistor is a transistor used for amplifying or switching electronic signals.We use it in billions of them. In our computers, our telephones, game consoles, cars, electrical appliances and in this case, our Amplifiers. They are found in systems where information is processed or stored. A MOSFET is basically an electrical switch that allows the flow of electrical current. An electrical switch has two possible states, ON or OFF. This is where 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.
€ Remote Subwoofer Level Control€ High input cable with connector€ Instruction Manual€ Mounting Screws
A class A/B amplifier uses two groups of transistors and it is generally considered to be the best compromise of the two classes put together. Class €˜A€ and class €˜B€.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. This eliminates virtually all of the crossover distortion that€s possible with class €˜B€ amplifiers.A class A/B amplifier is much more efficient than a class €˜A€ but without the possible distortion of a class €˜B€.As if that wasn€t enough, with a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers.By just a flip of a switch from Full to Low, the CXX1204 will change from offering a complete range of frequencies that you need to be able to listen to your 2/3/4 or 5 way speakers to the €œLow€ that you need for a subwoofer application.
Subwoofers reproduce sound based on a number of different 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 CXX1204 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 specific sound specifications for the bass frequency reproduction.
This feature comes in handy for a few different installation applications and is very multi versatile. Let€s go down the list.The €œ4€ channel means that you are able to simply use the CXX1204 as a 4 channel amplifier by hooking up 4 speakers to it. Fronts and rears.The €œ3€ channel is slightly different.What you can do here is to hook up 2 speakers to channels 1+2 and use the remaining 3+4 channels for 1 subwoofer in bridged mode.And lastly, the functionality of the €œ2€ channel.Channels 1+2 can be bridged to accommodate one speaker OR one subwoofer.Channels 3+4 can be used in the exact same above application.
The CXX series amplifiers have two different ways that you can get a signal into it.One is called Low level input and the other is called High level input.A low level input is measured in voltages. It comes in the form of RCA outputs from the back of your receiver and goes to the RCA inputs on your amplifier.A high level input is measure in wattages. It comes in the form one positive and one negative wire from the back of your receiver to and goes 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 best audio performance.NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!
€ Bridgeable Outputs (except CXXM2200 €“ CXXM1800 €“ CXXM1250)€ 2 Ohm Stable Stereo Operation With Output Power Increase€ Thermal, Overload and Speaker Short Protection€ Soft Turn-On Circuit€ Remote Turn On / Turn Off circuit€ Silver Anodized Heatsink€ LED Power and Protection Indicators
