DPA 4066-OP-A-F90-LH Headset Condenser Microphone

DPA 4066-OP-A-F90-LH Headset Microphone — Broadcast-Grade Voice Capture

The DPA 4066-OP-A-F90-LH is a professional omnidirectional headset condenser microphone designed for broadcasters, theater productions, and houses of worship. Built around a 5.4 mm electret-condenser capsule, this headset delivers clean, transparent sound with substantial headroom. CORE+ amplification neutralizes distortion across the entire operating range so speech and vocals stay intelligible even at high SPLs. A removable, adjustable dual-ear frame lets the boom be worn on either side, and the secure MicroLock connector keeps the cable locked in during energetic performances.

CORE+ Amplification and MicroLock Connector

Two technologies define this headset's professional pedigree. CORE+ is the next generation of DPA's miniature-mic amplification, eliminating distortion artifacts that standard CORE designs only reduce, so the 4066 stays clean up to 133 dB SPL and tolerates peaks up to 144 dB with only 10% THD. The MicroLock connector is a secure, wear-resistant locking system engineered to prevent accidental disconnections during live use, while remaining fully backwards-compatible with the legacy MicroDot ecosystem.

5.4 mm Omnidirectional Capsule — Natural, Forgiving Pickup

The forgiving omnidirectional polar pattern captures sound from all directions, providing a consistent frequency response even when the performer turns their head. This reduces vocal plosives and handling noise while keeping speech levels uniform across the stage.

• Polar Pattern: Omnidirectional — consistent level regardless of head movement
• Capsule Size: 5.4 mm electret condenser — small footprint that stays visually discreet
• Sensitivity: 6 mV/Pa at 1 kHz — strong output for clean wireless transmission

20 Hz - 20 kHz Frequency Response with Switchable Boost Grids

A full-range frequency response captures the warmth of the voice and the clarity of consonants without coloration. Two interchangeable anodized stainless-steel grids let the user tailor the high-frequency response: the pre-fitted Soft-Boost Grid adds a 3 dB lift from 8 to 20 kHz, while the included High-Boost Grid introduces a 10 dB boost around 12 kHz for extra top-end presence.

• Frequency Range: 20 Hz - 20 kHz — full-spectrum vocal capture
• Maximum SPL: 134 dB RMS / 144 dB peak (10% THD) — handles loud stages without breakup
• Dynamic Range: 111 dB (A-weighted) — wide range from whisper to shout

IP58 Moisture Resistance, Kevlar Cable, and MicroLock Connection

Engineered for daily touring use, the headset carries an IP58 dust and moisture resistance rating, with a double-vent protection system guarding the capsule. The 1.2 m cable is reinforced with Kevlar strain relief, and terminates in a compact MicroLock connector that locks securely into compatible bodypack transmitters.

• Cable Length: 1.2 m — enough slack for typical bodypack placement
• Cable Diameter: 1.6 mm — slim profile that disappears against the skin
• Weight: 14 g — light enough for hours-long wear
• Environmental Rating: IP58 (dust and water-resistant to 1 m)
• Operating Voltage: 5 - 10 V plug-in power

For Broadcasters, Theater Performers, and Worship Leaders

This headset is the right choice for presenters, singers, and worship leaders who need a hands-free microphone that stays visually discreet while delivering broadcast-grade vocal clarity. Theater sound designers will appreciate the dual-ear frame's secure fit for active performers, and broadcast engineers benefit from the omnidirectional pattern's forgiving pickup that keeps levels consistent as the talent moves. The IP58 rating also makes it suitable for outdoor events and humid environments. Adapters are available separately to connect the MicroLock output to most major wireless bodypack brands including Shure, Sennheiser, Audio Technica, Sony, Lectrosonics, and Wisycom.

DPA Microphones — Danish Pro Audio Heritage

DPA Microphones is a Danish professional audio manufacturer specializing in condenser microphone solutions for live sound, broadcast, and recording. The 4066 has long been the preferred headset microphone for broadcasters, Broadway theaters, and lecture halls, prized for its pristine sound and durable construction. The current CORE+ generation builds on that legacy with a wider dynamic range and almost complete elimination of distortion, while the new MicroLock connector adds the security modern touring productions demand.