The Sennheiser HMD 27 is a professional broadcast headset featuring a Dynamic Supercardioid microphone, designed for radio and television applications. Equipped with ActiveGard® technology and a lightweight 240 g design, it ensures comfortable wear during extended working hours.
Sennheiser HMDC 27 | Broadcast Headset with Integrated Microphone and NoiseGard™ Noise Cancellation
Sennheiser HMDC 27 is a professional broadcast headset with an integrated dynamic microphone, designed for broadcasters, sports commentators, sound engineers, and television production professionals. It combines Closed-back headphones with a Dynamic Microphone that delivers clear voice pickup, supporting reliable communication even in noisy environments.
Supercardioid Dynamic microphone for Focused Voice Pickup
The Sennheiser HMDC 27 features a Dynamic Microphone with a Supercardioid pick-up pattern. This directional characteristic focuses on sound from the front while reducing noise and unwanted sounds from other directions. As a result, voice transmission remains clear during live broadcasts, sports commentary, and television production.
The microphone boom can be rotated and positioned on either the left or right side, allowing users to choose the wearing configuration that best suits their working position.
ActiveGard® Technology for Hearing Protection
In radio and television environments, sudden high-level sounds can cause discomfort or potentially affect hearing. The HMD 27 features ActiveGard® technology with three selectable attenuation levels, helping control high sound peaks and protect users from unexpected audio signals. According to the manufacturer's specifications, this technology helps limit peak sound levels to 110 dB SPL.
Closed-back Design for Extended Wearing Comfort
The HMD 27 features a Closed-back Over-ear design that fully covers the ears, helping reduce external noise entering the headphones and minimizing sound leakage into the surrounding environment. This design is suitable for production areas where users need to monitor audio signals and communicate clearly.
Weighing only 240 g, the headset features soft ear cushions and a SPLIT headband design that distributes pressure more evenly across the head, helping reduce discomfort during extended use.
Flexible Design for Broadcast Environments
The HMD 27 features a modular construction, allowing different compatible cables and microphone booms to be used according to installation requirements. In addition, one ear cup can be flipped away from the ear, allowing users to monitor external sounds while listening through the headset.
Sennheiser HMD 27 Technical Specifications
| Specifications |
Details |
| Product type |
Broadcast headset with integrated microphone |
| Headphone design |
Closed-back, Over-ear |
| Operating principle |
Dynamic |
| Headphone frequency response |
4 Hz – 21,000 Hz |
| Headphone impedance |
64 Ohm |
| Microphone type |
Dynamic |
| Microphone pick-up pattern |
Supercardioid |
| Microphone frequency response |
40 Hz – 18,000 Hz |
| Microphone impedance |
300 Ohm |
| Microphone sensitivity |
0.5 mV/Pa at 1 kHz |
| Hearing protection technology |
ActiveGard® |
| Maximum SPL |
125 dB SPL (ActiveGard off) |
| Total harmonic distortion (THD) |
< 0.1% at 1 kHz, 100 dB SPL |
| Connection |
Wired (cable not included) |
| Weight |
240 g |
| Dimensions (H x D x W) |
200 x 171 x 78 mm |
| Warranty |
2 years according to manufacturer information |
Included Accessories
- 1 Sennheiser HMD 27 headset (cable not included).
- 1 large headband cushion.
- 1 microphone windscreen.
- 1 carrying pouch.
- User manual and safety instructions.
Sennheiser HMD 27 is a suitable choice for radio broadcasting, television, sports commentary, and professional program production. Its Supercardioid Dynamic microphone, ActiveGard® technology, and ergonomic design make it well suited to communication, audio monitoring, and extended working sessions.
Hoang Bao Khoa - Sennheiser Authorized Store in Vietnam
Hoang Bao Khoa is an authorized distributor of genuine Sennheiser products and the exclusive Sennheiser & Neumann warranty service center in Vietnam, providing products with verified origins and after-sales service in accordance with brand standards. For customers concerned about product authenticity and after-sales support, reviewing the warranty policy is also an important step before making a purchase. Choosing genuine products provides greater confidence in their ORIGIN and the applicable warranty coverage.
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