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Beyerdynamic MMX300
Gaming Headset, with Microphone


The MMX 300 is ideal for all gaming, multimedia and Voice over IP applications as well as for use with hi-fi systems or mobile devices (CD/DVD/MP3).
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Our Price: $349.00
List Price: $449.00
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Beyerdynamic MMX300
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The MMX 300 is ideal for all gaming, multimedia and Voice over IP applications as well as for use with hi-fi systems or mobile devices (CD/DVD/MP3). The technology of the MMX 300 is based on the reliable HS 400 aviation headset. The noise-cancelling microphone ensures a clear and precise voice transmission even in noisy surroundings. The closed design guarantees absolute undisturbed enjoyment of game and sound combined with a high comfort due to soft, replaceable ear and headband pads. The MMX 300 also provides mini jack plugs to connect to a PC.

The audio specialists from Heilbronn, Germany, have given their premium model a makeover and optimised numerous features. Decorative rings and yokes made of black anodised aluminium along with black velour ear pads add still more professional touches to the ear cups’ sleek carbon design. You can tell just by looking: This headset is a born winner.

The new headband was designed by beyerdynamic’s expert development team. The push-buttons on the top make it simple to clean and easy to replace. The 2.5 meter connection cable is made of rugged polyurethane material. It lies smoothly without getting tangled, and can handle even rough treatment – for example if the wire ends up under the wheels of a desk chair in the heat of an online battle. The professional screw-locking jack plugs and a 3.5 to 6.35 mm jack socket adapter mean that you can use this high-end headset anywhere. Symbols and the coloured insulating rings on the microphone and headphone jack plugs make it easier to connect them to your PC.

The MMX300 features a condenser microphone with a cardioid polar pattern for extraordinarily effective noise compensation. It reliably cancels out interfering outside noise so the people you’re talking to only hear what you want them to. At the same time, the sound quality is so high that the microphone capsule is technically suitable for recording music.


  • Closed headphone
  • Excellent ambient noise attenuation (approx. 18 dBA)
  • Ergonomic design for high comfort
  • Superb hi-fi quality with brilliant highs and very deep bass
  • Cardioid condenser microphone (back electret)
  • Noise-cancelling microphone
  • Rugged spring steel headband with soft, replaceable ear and headband pads
  • Single-sided cable
  • 5-year warranty



  • Transducer type: dynamic
  • Operating principle: closed
  • Frequency response: 5 - 30.000 Hz
  • Nominal impedance: 32 ohms per system
  • Nominal SPL: 96 dB
  • T.H.D.: < 0,2%
  • Sound coupling to the ear: circumaural
  • Power handling capacity: 100 mW
  • Ambient noise attenuation: approx. 18 dBA
  • Headband pressure: approx. 3.5 N
  • Weight (with microphone and cable): 380 g
  • Length and type of cable: 2.5 m, straight cable
  • Connection gold plated stereo jack plug:
      -  (3.5 mm) and ¼” adapter
      -  (6.35 mm)


  • Transducer Type: condenser (back electret)
  • Operating principle: pressure gradient
  • Polar pattern: cardioid
  • Frequency response: 30 - 18.000 Hz
  • Max. SPL: 120 dB
  • T.H.D.: < 0,2% at f = 1 kHz
  • Length microphone boom: approx. 150 mm
  • Capsule diameter: 13 mm
  • Connection: gold vaporised mini stereo jack plug (3.5 mm)

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