The Sennheiser HMD 300 X3K1 is a professional broadcast headset designed for demanding environments where clear communication and comfort are essential. Featuring a closed circumaural design, it delivers linear sound reproduction with a headphone frequency response of 60 Hz to 25 kHz and a dynamic super-cardioid microphone covering 40 Hz to 18 kHz for exceptional speech intelligibility.

Switchable ActiveGard® technology protects hearing from sudden audio peaks above 110 dB SPL without compromising clarity, while passive ambient noise attenuation ensures focus in noisy backstage conditions.

The headset includes a copper XLR-3 to 6.3 mm cable that minimizes structure-borne noise, and its modular design allows easy customization. With ultra-low distortion (<0.1% THD), a maximum SPL of 123 dB (ActiveGard off), and rugged construction, the HMD 300 X3K1 combines durability, safety, and premium audio performance for professional broadcasting. Comfortable padding, foldable earcups, and a reversible boom arm guarantee flexibility and long-term wearability.