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Sennheiser HMD 300 Broadcast Headset

The HMD 300 is a closed, circumaural headset built for high-volume backstage and broadcast environments, where an operator needs both isolation and speech that cuts through the noise. Its dynamic super-cardioid boom microphone can be positioned on either side of the headset, so it works for left- or right-handed operators without a different SKU.

Switchable ActiveGard limiting technology protects hearing from sudden peaks, and the closed, over-ear design keeps outside noise out of the operator's reference. It ships in three connector configurations for different intercom and beltpack interfaces: the standard HMD 300, the HMD 300 S, and the HMD 300 X3K1.

MicrophoneDynamic super-cardioid, boom, side-configurable
Frequency Response, Headphone60 - 25,000 Hz
Frequency Response, Microphone40 - 18,000 Hz
Impedance64 Ω (headphone), 300 Ω (microphone)
Output Voltage0.5 mV/Pa (1 kHz)
Max. SPL, ActiveGard Off123 dB SPL
Wearing StyleOver-ear, closed
Weight320 g
HMD 300 PRO - Oh Baby