Sennheiser HMDC 27 Broadcast Headset

Sennheiser HMDC 27 Broadcast Headset

616,55 EUR 649,00 EUR

The professional Sennheiser Broadcast Headset HMDC 27 is a professional broadcast headset with active noise compensation
Model/Product no.: SN-HMDC-27

Sennheiser HMDC 27

This headset comes without cable. You can chose among several optional cables in attached related products.


The new Sennheiser HMD 27-series invites the Broadcast Commentators and Audio Engineers to experience the highest level of wearing comfort. The top-of-the-line model is the Sennheiser HMDC 27, which features NoiseGard™ (active noise reduction) to perform well in very loud environments. By actively reducing the noise level by additional 15dB this headset increases intelligibility while at the same time protecting the user’s hearing and avoiding stress and fatigue due to noise. NoiseGard™ does not require the usual batteries but is conveniently powered via the microphone power supply from the broadcast desk or intercom system. (Phantom powered P48). The headset is similar to the HMS 26series equipped with the automatically opening two-piece headband, hence no pressure on the sensitive fontanelle. For those users who still prefer a conventional headband, a wide headband padding is included that converts the two-piece headband into a compact single piece.



  • Active noise compensation (NoiseGard™) additionally reduces noise by up to 15 dB. No batteries required: Power supply via microphone bias voltage from the commentator’s unit (P12-P48 as per DIN_EN 61938)

  • Highest wearing comfort due to the lightweight circumaural design and the splitted headband (no pressure on the sensitive fontanelle)

  • Accurate and linear sound reproduction for very demanding monitoring

  • Dynamic Microphone, which stands out due to a strong and powerful sound pattern for an audio transmission in highest broadcast quality even in noisy environments

  • ActiveGard© (on/off switch) for protected hearing against noise peaks > 110dB

  • Modular concept of different cables and boom arms to offer highest flexibility

  • Cables of the cable 26-II series are compatible

  • Swiveling ear cap for single sided listening

  • Microphone can be worn either on right or left hand side

  • Wide headband padding is included that converts the two-piece headband into a compact single piece


Technical Specifications: 

Impedance 64 ohms
Frequency response (Microphone) 40 Hz – 18 kHz
Transducer principle (Microphone) dynamic
Frequency response (Headphones) 8 Hz – 18 kHz
Microphone BMD 434
Max. sound pressure level ActiveGard™ Limiter off: 128 dB SPL @ 1 kHz
ActiveGard™ Limiter on: 110 dB SPL @ 1 kHz
Contact pressure approx. 3.3 N
Ear coupling circumaural
Pick-up pattern Hyper-cardioid
Microphone sensitivity 0.5 mV/Pa @ 1 kHz
Maximum sound pressure level (passive) 128 dB SPL @ 1 kHz
ActiveGard® 110 dB SPL @ 1 kHz
Distortion < 0.1% @ 1 kHz, 100 dB SPL
Transducer principle (headphones) dynamic, closed
Weight w/o cable approx. 240 g

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