Sennheiser HMDC 27

Professional music gear - detailed information and where to buy

Sennheiser HMDC 27

Sennheiser

HMDC 27

4.9 Expert Rating

Product Info

Article Number: 401415
Model: HMDC 27
Price: $713.90

* Prices may vary. Check retailer for current pricing and availability.

The HMDC 27 is a serious piece of kit built for broadcast professionals needing top-tier noise isolation and comfort. It’s rock-solid construction and thoughtful design – like the swiveling mic – make it ideal for commentators and broadcasters where clear communication is critical, even in noisy environments. Just be aware it needs a good preamp to really shine.

Product Description

  • Sennheiser HMDC 27
  • Professional Broadcast Headset
  • Circumaural
  • Closed-back
  • Noise compensation (Noise-
  • Gard): the NoiseGard electronics reduce noise by an additional 15 dB in addition to the passive attenuation of the closed design
  • No batteries required: power supply via microphone bias voltage from the commentator unit (P12-P48 according to DIN_EN 61938)
  • Two-part headband (very comfortable to wear
  • a wide headband padding is also included to hold the headband in place)
  • Single-sided hearing possible thanks to the swivelling ear piece
  • Swivelling microphone can be worn on right or left side
  • ActiveGard limiter can be activated and protects against sudden level peaks > 110 dB
  • Impedance: 600/200 ohm (ANR on/off)
  • Max. sound pressure level: 128 dB at 1 kHz
  • Frequency range: 8 Hz - 18
  • 000 Hz
  • Microphone: Type BMD 434 (hypercardioid
  • impedance: 300 ohm
  • audio transmission range: 40 - 18000 Hz)
  • Field transmission factor: 0.5 mV/Pa @ 1 kHz
  • Weight: 240 g
  • Includes wind and pop protection and cable clamp

*Note:* Cable not included. Suitable cable Art. #448028#

PROS
  • • Exceptional NoiseGard provides real-world noise reduction, beyond passive attenuation
  • • Robust build quality with a two-part headband and wide padding ensures comfort
  • • ActiveGard limiter protects hearing from sudden loud peaks, a vital safety feature
  • • Swiveling mic and ear piece offer flexible positioning for broadcast comfort
CONS
  • • Premium-priced, representing a significant investment for many users
  • • Impedance of 600 ohms requires a powerful preamp or amp for optimal performance
  • • Closed-back design may introduce some pressure or heat during extended use

Product Video

Key Features

Headphone Type Circumaural, Closed-back
Driver Size 32 mm
Mic Type Condenser
Mic Pattern Omnidirectional
Connector XLR
Weight 280 g

Similar Products

Thomann Home Studio Bundle - Studio Packages

Thomann Home Studio Bundle

Studio Packages

$164
4.8 Expert Rating
Behringer WING Compact Flyht Pro Bundle - Digital Mixers

Behringer WING Compact Flyht Pro Bundle

Digital Mixers

$2,748
4.8 Expert Rating
Microtech Gefell M 42 - Modular Microphone Systems

Microtech Gefell M 42

Modular Microphone Systems

$923
Small Diaphragm Microphone Capsule, Interchangeable capsule with omnidirectional polar pattern,...
4.5 Expert Rating
Microtech Gefell M 310 - Small Diaphragm Condenser Microphones

Microtech Gefell M 310

Small Diaphragm Condenser Microphones

$1,011
Small Diaphragm Condensor Microphone, Compact condenser microphone with supercardioid polar...
4.5 Expert Rating
Ibanez GRGR221PA-AQB Bundle - ST Style Guitars

Ibanez GRGR221PA-AQB Bundle

ST Style Guitars

$325
5 Expert Rating
Microtech Gefell M 990 Satin Nickel - Large Diaphragm Microphones

Microtech Gefell M 990 Satin Nickel

Large Diaphragm Microphones

$3,266
Tube Microphone, Large diaphragm condenser microphone with tube amplifier,...
5 Expert Rating
Microtech Gefell M 41 - Modular Microphone Systems

Microtech Gefell M 41

Modular Microphone Systems

$923
Small Diaphragm Microphone Capsule, Interchangeable capsule with super cardioid polar pattern,...
4.7 Expert Rating
Ampeg RB-115 Bundle - Solid-State Bass Combos

Ampeg RB-115 Bundle

Solid-State Bass Combos

$792
4.5 Expert Rating

Frequently Asked Questions

NoiseGard offers a noticeable advantage over standard passive noise attenuation, effectively reducing ambient noise without relying on batteries.
While possible, the high impedance (600 ohms) may require a dedicated microphone preamp or a high-powered audio interface to achieve optimal sound quality.
The two-part design and included wide headband padding prioritize long-term comfort, minimizing pressure points and fatigue during extended use.

We use cookies to improve your experience. Learn more