Sennheiser HMD 300 PRO Professional Broadcast Headphones

HMD 300 PRO

SENNHEISER

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The HMD 300 PRO supports professionals involved in broadcasting with several smart solutions. Its pressure-sensitive design offers outstanding wearing comfort even during extended sessions. The speech and sound quality are of just as professional a standard as the hearing protection facilitated by switchable ActiveGard. Together with its effective passive ambient noise attenuation and proven structure borne noise decoupling, the HMD 300 PRO offers substantially more performance than you would expect at that price.In broadcasting and live productions, spending hours on the job is par for the course. It is precisely for this that we have developed the HMD 300 PRO: Thanks to its pressure-sensitive design, it remains extremely comfortable. Combined with a detailed sound, outstanding speech intelligibility, switchable hearing protection and effective insulation from ambient noise, it offers professionals everything they could ask for. You simply won’t find more features in this price category


  • Impedance
    64 ohms
  • Frequency response (Microphone)
    80 Hz – 16 kHz
  • Transducer principle (Microphone)
    dynamic, hyper-cardiod
  • Frequency response (Headphones)
    60 Hz - 25kHz
  • Microphone
    BMD 404
  • Max. sound pressure level
    123 dB SPL @ 1 kHz (ActiveGard off)
  • Contact pressure
    6.0 N ± 0.75 N
  • Ear coupling
    circumaural
  • Power consumption
    500mW
  • Storage temperature
    -55°C to +70°C
  • Operating temperature
    -15°C to +55°C
  • Output voltage
    0.4 mV/Pa @ 1 kHz
  • ActiveGard®
    110 dB SPL @ 1 kHz
  • Distortion
    ‹ 0.1 % @ 1 kHz, 100 dB SPL
  • Max. Sound pressure level (active)
    110 dB SPL @ 1 kHz (ActiveGard on)
  • Sensitivity
    108 ±3 dB SPL / 1 V rms / 1 kHz
  • Transducer principle (headphones)
    dynamic, closed
  • Weight w/o cable
    319 g
  • Noise cancellation
    Max 32 dB (passive)