DPA 4061-OP-C-B90 Lavalier Condenser Microphone

Professional Lavalier Microphone for Loud Speech and Vocals

The DPA 4061-OP-C-B90 is a miniature omnidirectional lavalier condenser microphone designed for broadcast, theatrical, and live-stage applications where speech levels run high. Built around DPA's CORE+ amplification technology, this low-sensitivity variant handles peak SPLs up to 137 dB with less than 1% distortion, making it well suited for loud presenters, energetic vocalists, and instrument miking on stage. The vertical-diaphragm electret capsule measures just 5.4 mm in diameter, allowing the mic to disappear into costumes or clothing while delivering crisp, intelligible sound. The 4061 CORE+ is the right choice for audio engineers and performers who need a discreet lavalier that holds up to punishing SPLs without coloration.

CORE+ Amplification and MicroLock Reliability

What separates this lavalier from standard miniature designs is the combination of DPA's CORE+ preamplifier circuit and the MicroLock locking connector system. CORE+ extends the dynamic range beyond the original CORE technology, eliminating distortion artifacts at the top of the SPL curve rather than merely reducing them. MicroLock provides a secure, wear-resistant locking mechanism that prevents accidental disconnection during live performance, while remaining fully backwards compatible with the legacy MicroDot adapter ecosystem. Together, these two technologies address the two most common failure points of miniature wireless mics: distortion at high SPLs and connector dropouts mid-show.

Capsule Design — Clear, Natural Voice Reproduction

The 5.4 mm electret condenser capsule uses a vertical diaphragm orientation optimized for the human voice, producing a crisp and natural sound that translates well through broadcast and PA systems. Two interchangeable anodized stainless steel protection grids ship with the microphone, allowing the user to tailor the high-frequency response to placement.

• Capsule Diameter: 5.4 mm — small enough to conceal in clothing or hairline mounts.
• Soft-Boost Grid: 3 dB lift at 8–20 kHz — pre-fitted for head-mounted and most natural-sounding applications.
• High-Boost Grid: 10 dB lift around 12 kHz — alternative grid for chest placement where more presence is needed.

Dynamic Range and SPL Handling — Headroom for Loud Stages

The 4061 CORE+ is wired for reduced sensitivity specifically so it can sit in front of loud sources without overloading the wireless transmitter input. CORE+ extends usable headroom well beyond the standard CORE specification, giving engineers more gain before feedback and more dynamic range for unpredictable live levels.

• Maximum SPL: 134 dB RMS (1% THD), 137 dB peak (1% THD), 144 dB peak (10% THD) — handles loud vocals, brass, and amplified instruments without clipping.
• Sensitivity: 6 mV/Pa at 1 kHz — reduced output level matches the input stage of most professional wireless bodypacks.
• Dynamic Range: 111 dB (typical) — wide usable range from quiet speech to peak vocal projection.
• Equivalent Noise Level: 26 dB A-weighted — low self-noise keeps quiet passages clean.

Build Quality and Powering — Built for Touring

The housing carries an IP58 certification against dust and moisture ingress, meaning the capsule survives sweat, rain, and the rough handling of touring rigs. Power is drawn directly from the wireless transmitter's plug-in power, so no external phantom supply is needed.

• Cable Length: 1.8 m — Kevlar-reinforced with strain relief at the capsule end.
• Connector: MicroLock (locking) — secure latching, backwards compatible with MicroDot adapters.
• Operating Voltage: 5–10 V plug-in power — runs from any standard wireless bodypack.
• Weight: 7.5 g (with cable) — light enough for hairline or costume mounting.
• Environmental Rating: IP58 — dust-protected and resistant to continuous moisture exposure.

Who Should Choose the 4061 CORE+

The 4061-OP-C-B90 is the right choice for broadcast audio engineers, theater sound designers, and live-event production teams who need a lavalier that can handle loud, dynamic sources without distorting. Houses of worship running energetic vocal teams will appreciate the headroom for shouted sermons and amplified praise bands, while corporate AV teams benefit from the forgiving omnidirectional pickup that keeps speech intelligible even when presenters move or turn their heads. Film and television location sound mixers will find the moisture resistance and rugged cable construction well suited to outdoor shoots and long production days. Touring musicians who use wireless instrument packs can also deploy this lavalier for close miking of brass, woodwinds, or acoustic guitar in high-SPL stage environments.

DPA Miniature Microphone Heritage

The 4060 Series traces its lineage to the very first miniature microphone developed by DPA, built on measurement-microphone and hearing-aid technology that the company adapted for professional audio. The platform has been refined over multiple generations, with CORE and now CORE+ amplification extending usable headroom while preserving the natural sound character that has made the 4060 family a standard on Broadway, in broadcast studios, and on tour. The 4061 variant specifically addresses the need for a low-sensitivity version of that platform, tuned for the loudest speech and vocal sources encountered in professional production work.