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Sennheiser HMDC 27 Broadcast Headset With NoiseGard Technology

Sennheiser HMDC 27 Broadcast Headset With NoiseGard Technology

SoundPro Item: 145421 | Part Number: HMDC 27

Regular price $649.00
Regular price $779.00 Sale price $649.00
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MSRP: $779.00 | MAP: $649.00

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  • Dynamic Microphone Capsule Maintains Clarity In Stadium And Outdoor Broadcast Environments
  • Switchable NoiseGard Active Reduction Adds 15 dB Attenuation For High-Noise Venue Operation
  • Split Headband Design Eliminates Pressure Points During Multi-Hour Commentary Sessions
  • ActiveGard Limiting Protects Hearing From Sudden Transients During Live Event Production
  • Modular Cable And Boom Compatibility Supports Integration With Multiple Console Platforms
  • Flip-Away Earcup Enables Single-Ear Monitoring For Split Attention Workflows
  • Reversible Boom Arm Accommodates Left- Or Right-Side Commentary Desk Configurations

Engineered for live broadcast commentators and production audio engineers operating in high-SPL environments, this closed circumaural headset combines precision monitoring with advanced hearing protection. The dynamic microphone capsule maintains broadcast-quality articulation in noisy stadium, arena, and outdoor venue conditions where condenser elements struggle. Switchable NoiseGard active noise reduction provides an additional 15 dB of ambient attenuation, ensuring clear communication during loud live events.

The split headband architecture distributes weight evenly across the skull, eliminating pressure points during extended commentary shifts. Modular cable and boom arm compatibility allows engineers to adapt the platform to different console ecosystems and workflows. Flip-away earcup positioning supports single-ear monitoring when directors need to split attention between program audio and live ambient sound. ActiveGard limiting prevents sudden transient damage during sound checks and technical rehearsals.

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Specifications

Certifications
Warranty
2 years
Audio
Audio Frequency Response (Headphones)
4 Hz – 21,000 Hz
Audio Frequency Response (Microphone)
40 Hz – 18,000 Hz
Impedance (Headphones)
130 Ω
Impedance (Microphone)
300 Ω
Max Sound Pressure Level (ActiveGard Off)
125 dB SPL
ActiveGard Level
110 dB SPL @ 1 kHz
Total Harmonic Distortion
< 0.1% @ 1 kHz, 100 dB SPL
Output Voltage
0.5 mV/Pa @ 1 kHz
Pickup Pattern
Supercardioid
Transducer Type
Dynamic
Connectivity
Connection
Wired
Dimensions
Product Height
200 mm
Product Length
171 mm
Product Width
78 mm
Weight
Product Weight
250 g
Environmental
Operating Temperature
-15 °C to +55 °C
Storage Temperature
-40 °C to +70 °C
Identifiers
Battery Included
No

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