AKG HSD271 Closed-Back Headset with Dynamic Microphone

The HSD271 is the dynamic-microphone version of AKG's K271 MKII based production headset, and the choice when the environment is loud or rough. A dynamic element needs no powering, tolerates high SPL without complaint, and takes physical abuse that would end a condenser capsule, which is why it ends up on camera crews, in OB trucks and on stage-manager circuits. Its 60 to 17,000 Hz bandwidth is deliberately narrower than the condenser version, shaped for voice on a comms circuit.

The closed-back cups isolate, the velour pads are replaceable, and both mutes are mechanical: raising the boom mutes the microphone, and lifting the headset off the head trips a switch in the headband that mutes the audio. The boom mounts on either side, and the plug-in cable terminates in a gold-plated six-pin mini XLR so it can be swapped in the field. A W HSD windscreen and a spare pair of velour pads ship with it.