Superlux HMD685A Single-Sided Headset - UK Authorised Distributor

The Superlux HMD685A is a professional single-ear intercom headset with a flexible anti-vibration gooseneck boom microphone, designed for the demanding requirements of broadcast applications — studio or outside productions, theatre, live events, schools, and venue production teams. Wherever reliable, comfortable, long-wear comms matters.

Showcomms is the sole UK authorised distributor for the Superlux Intercom Series, listed directly on the Superlux website. A UK family business — family owned and operated — when you buy from Showcomms, you're buying from the source. UK stock — no waiting for European warehouse shipments.

Flexible Anti-Vibration Gooseneck Boom — Clear Voice, Noise Rejection

The cardioid dynamic mic is mounted on a flexible gooseneck boom that resists vibration and holds its position without drifting. The fully rotating boom arm positions for left or right ear wearing — essential for stage management, sound, and lighting roles where the headset may be worn for hours at a stretch.

Boom-Position Mic Mute

Raising the boom to the upright position automatically mutes the microphone — a clean, intuitive way to go off-mic without touching a button or disconnecting from the beltpack. Lower the boom and you're live again.

Full Ear Cushion — Comfortable for Long Wear

The closed-back ear cup provides noise isolation without being an ear defender — you stay aware of your environment while the cushion blocks enough ambient noise to hear comms clearly. Built for hours of continuous wear.

Choose Your Connector — XLR4F or XLR4M

Wired with a 1.5m cable, available terminated in either XLR4F or XLR4M — select the connector you need above. XLR4F is compatible straight out of the box with Tecpro, Clearcom, Granite, ASL, and Altair beltpacks. XLR4M suits beltpacks and panels wired for the opposite gender connector. Also available with XLR5M or XLR5F connector for comms panels and wireless beltpacks — contact us to order.

Also available in double-sided — see the HMD685 Double Sided.
Part of the IS103A Intercom Starter Kit — the HMD685A (XLR4F) is included as standard in our IS103A wired intercom system.

Specifications

• Configuration: Single-sided, closed-back
• Driver: 40mm Neodymium
• Speaker impedance: 380–400 Ohm
• Speaker sensitivity: 90 dB SPL (1mW)
• Speaker frequency response: 20Hz – 20,000Hz
• Microphone type: Dynamic, Cardioid
• Mic impedance: 250 Ohm
• Mic sensitivity: -64 dBV/Pa (0.6mV/Pa)
• Mic frequency response: 20Hz – 15,000Hz
• Mic mute: Automatic — activated when boom is raised to upright position
• Cable length: 1.5m
• Connector: XLR4F or XLR4M — select above (XLR5 available on request)

From Showcomms — sole UK authorised distributor for the Superlux Intercom Series.