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Planet Audio MB300.4D 4D Mini Bang 4 Channel 1200W Class D Power Car Amplifier

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Original price $0.00 - Original price $0.00
Original price $0.00
$140.95 - $140.95
Current price $140.95

Planet Audio MB300.4D 4D Mini Bang 4 Channel 1200W Class D Power

Take your car audio to the next level with the Planet Audio MB300.4D 4-Channel 1200-Watt Full-Range Class D Power Car Amplifier. The Planet Audio MB300.4D car amplifier was designed, engineered, and manufactured to bring you the highest level of performance and quality in your car audio setup. The MB300.4D car amplifier is packed with features like a MOSFET power supply, low and high level inputs, variable filter, variable bass boost (with included remote switch), and blue backlit illumination. This full-range, class D amplifier is rated at 300 watts max power x 4 channel; 56 watts x 4 RMS at 2 ohms; 29 watts x 4 RMS at 4 ohms; 113 watts x 2 RMS bridged at 4 ohms. This amp has a frrequency response of 9 Hz to 50 kHz and signal-to-noise ratio of 103 dB.


2 Ohm Stable
The lowest impedance accepted by this amplifier is 2 ohms. Amplifiers that are 2 ohms stable produce more power resulting in more volume. This amp can comfortably power speakers or subwoofers with all channel(s) being used at a load of 2 ohms.

Class D Amps
Class D is a high speed switching amplifier technology that is more efficient, generates less heat and draws less power than traditional Class A/B amps. We use Class D in our monoblock amplifiers to give you massive amounts of power in a relatively small footprint for clean, powerful, bass.

High and Low Level Inputs
An amplifier with both high-level and low-level inputs provides flexibility by allowing you to build an audio system using virtually any standard factory or aftermarket source unit. High-level (speaker level) inputs accept the signal from the speakers, while low-level (RCA) inputs accept the signal from the pre-amp outputs of the source unit.

If the amplifier gets too hot, the thermal protection circuit turns the amp off and allows the amp to cool down before turning it back on. If a speaker fails causing an electrical short, the protection circuit will automatically cut the output and remain in that state until the short is resolved. These safety features give you peace of mind knowing the amplifier is constantly monitoring conditions to protect itself.

Switchable Input Sensitivity
Switchable Input Sensitivity gives you the freedom to connect the amp to any standard source unit and have peace of mind it will be within range to properly match the output of the source unit allowing you to use the volume controls on your source unit the way it was designed.

Variable Bass Boost
Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.

Variable Gain Control
Variable Gain Control lets you balance the amps output with the speakers or subs the amp is driving. To much gain will lead to distortion and to little will lead to clipping.

Variable High Pass Filter
Variable high-pass filter gives you control over the frequencies that pass through to the full range speakers.

Variable Low Pass Filter
Variable low-pass filter gives you control over the frequencies that pass through to the subwoofer.


  • Full range Class D, MOSFET power supply
  • High and low level inputs
  • Variable high pass crossover, variable low pass crossover, variable bass boost
  • Illuminated end panel strips
  • Specifications:
  • Amp topology: Full range class D
  • Total power output: 300 watts
  • Peak power at 2 ohms: 75 watts x 4
  • RMS power at 4 ohms: 29 watts x 4
  • Bridged power at 4 ohms: 150 watts x 2
  • Impedance: 2 to 8 ohms
  • Frequency response: 9 Hz to 50 kHz
  • Signal to noise ratio: 103 dB
  • Dimension (L x W x H): 9.5 x 5.1 x 1.7 inches

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Where can you get more information about Proposition 65?

Learn more from the California Office of Environmental Health Hazard Assessment (OEHHA) site here.