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Black over-ear gaming headset with detachable cable and boom microphone

Beyerdynamic

Beyerdynamic MMX 300 PRO 730670 Closed Gaming Headset accessory

SKU CH-PS7E-J38W8 MPN 730670

Closed gaming headset with 48-ohm Stellar.45 driver, condenser microphone, detachable 2.5 m cable and 3.5 mm console adapter

  • TypeOver the Ear
  • ColorBlack
  • Frequency Response5Hz-40KHz
  • THDT.H.D. @ 500 Hz < 0.05 %
  • Input Impedance48 ohms
  • Connector2 x mini stereo jack plugs (3.5 mm) & mini jack adapter (3.5
  • Hear every detail with the STELLAR.45 driver used in studio headphones
  • Focus fully on gameplay thanks to closed design and circumaural comfort
  • Communicate clearly with condenser microphone covering 20Hz-20KHz frequency response
  • Connect to PC and consoles via two 3.5 mm jacks and adapter
  • Lightweight 314 g build with detachable 2.5 m cable for flexible setup

Closed gaming headset with Stellar.45 driver

The Beyerdynamic MMX 300 PRO is a wired, circumaural headset built for competitive gaming on PC and consoles. It uses a low-impedance Stellar.45 driver also found in studio headphones to reproduce detail from 5 Hz to 40 kHz. A condenser microphone with a 20 Hz to 20 kHz response captures speech clearly. The closed design isolates the user from ambient noise.

Suited for players who want studio-grade audio

Gamers who value accurate positional cues and long-session comfort will benefit from the soft ear pads and recessed headband pad. The 48 ohm impedance allows direct connection to controllers and mobile devices without an external amplifier. Buyers who need wireless freedom or active noise cancellation should consider other models. The single 3.5 mm connector setup also limits use with separate mic and audio ports unless an adapter is added.

Consistent output during extended sessions

The Stellar.45 driver maintains low distortion, measuring under 0.05 percent THD at 500 Hz, so tonal balance remains stable even at high volumes. Passive isolation from the closed cups stays effective regardless of duration, unlike active systems that can introduce artefacts over time. The detachable 2.5 m cable reduces strain on the jack during movement. Microphone sensitivity of 21.6 mV/Pa delivers steady voice levels without gain riding.

Highlights

  • Hear every detail with the STELLAR.45 driver used in studio headphones
  • Focus fully on gameplay thanks to closed design and circumaural comfort
  • Communicate clearly with condenser microphone covering 20Hz-20KHz frequency response
  • Connect to PC and consoles via two 3.5 mm jacks and adapter
  • Lightweight 314 g build with detachable 2.5 m cable for flexible setup

Specifications

BrandBeyerdynamic
ModelMMX 300 PRO
Part Number730670
TypeOver the Ear
ColorBlack
Frequency Response5Hz-40KHz
THDT.H.D. @ 500 Hz < 0.05 %
Input Impedance48 ohms
Connector2 x mini stereo jack plugs (3.5 mm) & mini jack adapter (3.5 mm) for consoles
Ear CouplingCircumaural
Cord Length2.5 m / straight cable, detachable, single-sided with 5-pole stereo jack plug
Weight314 g
Noise CancellingYes
Microphone Frequency Response20Hz-20KHz
Microphone SensitivitySensitivity at f = 1 kHz 21.6 mV/Pa
Features• Closed design
• Soft over-ear pads for high wearing comfort
• Headband pad with a recess in the area of the fontanel
• High-quality microphone for excellent intelligibility of speech
• Single-sided, detachable cable with an integrated remote control
• Made in Germany
Shipping weight0.73 kg
Package size229 × 216 × 117 mm

Questions about this item

What 3.5 mm jack does my PC or console need for the MMX 300 PRO's 48 ohm driver?

The headset plugs into a standard 3.5 mm headphone output; the package includes two mini stereo jack plugs and a 3.5 mm console adapter for direct connection.

Will the 48 ohm STELLAR.45 driver reach full volume on an older controller with a weak 3.5 mm output?

The low 48 ohm impedance is designed to deliver sufficient loudness from typical PC, PlayStation, Xbox and Switch controller jacks without an external amplifier.

How can I confirm the microphone is capturing my voice at the rated 21.6 mV/Pa sensitivity?

Record a test clip in your system sound settings or game chat; clear, natural speech without boosting gain indicates the condenser microphone is operating at its specified sensitivity.

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