Sennheiser HMDC 27 Dual-Ear Over-Ear Broadcast Headset with Dynamic Mic, Active Noise Reduction, and Cable

Sennheiser HMDC 27 Dual-Ear Over-Ear Broadcast Headset with Dynamic Mic, Active Noise Reduction, and Cable not included

The Sennheiser HMDC 27 Dual-Ear Over-Ear Broadcast Headset with Dynamic Microphone and Active Noise Reduction is ideal for TV and radio applications in very loud environments. The HMDC 27 features NoiseGard (active noise reduction) that actively reduces the ambient-noise level by 15 dB, increasing intelligibility while protecting the user’s hearing and avoiding stress and fatigue due to noise. The lightweight design offers extrasoft cushions and headband padding for long-lasting comfort during extended production days.

The closed-back around-ear headphones and ActiveGard limiting technology (with three switchable attenuation settings) prioritize isolation, passive noise reduction, and hearing protection, while still handling high-decibel performance. Featuring a modular design, the HMDC 27 is compatible with a wide variety of cables and boom arms. The headset does not come with a CABLE-II-X3K1 cable.

Dynamic Boom Microphone

The integrated dynamic hypercardioid boom microphone gives you reliable broadcast sound quality up to 18 kHz and delivers excellent acoustic performance.

NoiseGard Active Noise Reduction

For ease of operation, the NoiseGard active noise reduction does not require batteries but is conveniently powered via the P48 phantom-power supply from the broadcast desk or intercom system (P12-P48 as per DIN_EN 61938).

Choice of Headbands for Comfort

The HMDC 27 features the automatically opening two-piece headband, hence no pressure on the sensitive fontanelle. For users who still prefer a conventional headband, a wide headband padding is included that converts the two-piece headband into a compact single piece.

Key Features

Accurate and linear sound reproduction for professional radio and TV applications in very loud environments

Dual-ear on-ear headset

-15 dB NoiseGard active noise reduction (requires phantom power)

Hypercardioid dynamic microphone for reliable broadcast sound up to 18 kHz

Comfortable, lightweight design with extrasoft cushions for hours of use

Switchable ActiveGard limiting technology for protected hearing (Off / 95 dB / 110 dB)

Swivel earcup for single-sided listening

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

Modular design with different optional cables and boom arms for highest flexibility

Includes a CABLE-II-X3K1 cable

Headphone

Earpiece Design

Over-Ear (Circumaural)

Earpiece Connection / Wearing Style

Headband

Number of Earpieces

Dual Earpiece (Left or Right Side)

Driver Type

Dynamic

Impedance

130 Ohms

Controls/Microphone Location

Adjustable Boom

Noise Attenuation

Up to 15 dB (Active)

Frequency Response

4 Hz to 21 kHz

Total Harmonic Distortion (THD)

0.1%

Maximum Sound Pressure Level (SPL)

105 dB

Microphone

Microphone Type

Dynamic

Mic Boom Location

Interchangeable (Left or Right Side)

Pickup Pattern

Hypercardioid

Frequency Response

40 Hz to 18 kHz

Sensitivity

.5 mV/Pa

Impedance

300 Ohms

Wired Connectivity

Audio Connector

Proprietary

Cable Length

6.6' / 2 m

Environmental

Operating Temperature

5 to 131°F / -15 to 55°C

Storage Temperature

-40 to 158°F / -40 to 70°C

Physical

Weight

8.8 oz / 250 g

Packaging Info

Package Weight

0.99 lb

Box Dimensions (LxWxH)

9.5 x 7.8 x 3.2"

In the box;

1 x Sennheiser HMDC 27 Dual-Ear Over-Ear Broadcast Headset with Dynamic Mic, Active Noise Reduction, and Cable