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PLANET AUDIO AC1200.4 ANARCHY Class AB Full-Range MOSFET Amp (AC1200.4)

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PLANET AUDIO AC1200.4 ANARCHY Class AB Full-Range MOSFET Amp (AC1200.4)

Brand: PLANET AUDIO           P\N: AC1200.4           UPC: 636210104971

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Availability: Usually Ships Same Day
Condition: New

Your Price: $96

List Price: $145.00


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PLANET AUDIO 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 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. 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'.


  • Class AB

  • Illuminated logo

  • Freq resp: 20Hz - 20kHz

  • Includes remote subwoofer level control

  • 4 channels

  • 1,200W max

  • 100W RMS x 4 @ 4_

  • Dim: 2.4"H x 10.66"W x 11"D

  • Bridgeable tri-mode operation

  • Input sensitivity selector

  • 0dB - 18dB variable bass boost

  • Continuously variable high-pass & low-pass crossovers

  • Low- & high-level inputs

  • Power & protection LEDs

  • Heavy-duty set-screw-style terminals

  • Chrome-plated connections


MOSFET PWM (Pulse Width Modulated) Power Supply

Metal–Oxide–Semiconductor Field-Effect Transistor is a transistor used for amplifying or switching electronic signals. We use it in our computers, 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 and 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. The “Pulse Width Modulated” is a design that is significantly simplifies power supplies. It controls the output voltage and current precisely by not only removing the output current sensing loss, but also eliminating all secondary feedback circuitry. The PWM can increase efficiency, is lighter, smaller, can reduce total cost, productivity and system reliability.

  • 1200 Watt 4 Channel MOSFET Amplifier
  • Max Power (2 Ohms): 300 W x 4
  • RMS Power (2 Ohms): 200 W x 4
  • RMS Power (4 Ohms): 100 W x 4
  • Signal-To-Noise Ratio: 88 dB
  • Frequency Response: 20Hz to 20kHz
  • Thermal and Speaker Short Protection
  • 2 Ohm Stable Operation With Output Power Increase
  • Soft Turn-On Circuit
  • Variable Input Gain Control
  • Remote Turn On / Turn Off Circuit
  • Black Anodized Heatsink
  • LED Power and Protection Indicators

Auto amplifiers increase power from the stereo to the speakers. Each channel of an amplifier is designed to power one speaker. Some amplifiers, called mono amps, have only one channel. Audiophiles often use a mono amp to drive a single subwoofer, but there is a way to connect two amplifier channels to a single subwoofer. This is called bridging the amp, and it dramatically increases the power output to the subwoofer.


Tri-Mode Operation

Using tri-mode on a capable amplifier is a way to maximize the potential of a two-channel car amplifier. With the ability to drive a pair of speakers and a subwoofer, tri-mode is an affordable way to get a powerful two-channel car stereo. The advantages of using a single amplifier include lower amperage requirements from the vehicle's charging system and less physical space needed for an amplifier installation. Regardless of the reasons, setting an amplifier to tri-mode is a viable mobile audio installation solution.


Variable Low-Pass Crossover

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 AC1200.4 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.

Fixed High-Pass Crossover

Speakers also reproduce sound based on high, low or mid-range frequencies. High pass crossovers are geared specifically towards “highs” such as all size speakers, mid ranges and tweeters. Unlike “Variable Low-Pass Crossover,” you are not able to set exact sound specifications such as the bass, mid-range and high frequency reproduction. This High-Pass Crossover is fixed.

Variable Bass Boost

So you have Bass Boost and Variable Bass Boost. The difference between the two is that with Bass Boost you either have extra bass or you don’t. But with Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s). And this is what you get with the AC1200.4 Amplifier: Variable Bass Boost.



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