Monheim Omni SPL Reference Microphones (Matched Pair)

The Monheim Omni SPL Reference Microphones are designed for engineers who need uncompromised accuracy at high sound pressure levels. Building on the natural, ear-like response of the original Monheim Omni, the Omni SPL version features a lower noise floor and increased SPL handling, making it ideal for loud and dynamic sources without sacrificing spatial realism. Sold as a matched pair, these microphones excel at capturing depth, detail, and true stereo imaging in both studio and live environments.

At the core of the Omni SPL is a transformerless, transistor-based circuit paired with a custom-tuned omnidirectional capsule. A gentle presence lift around 10 kHz is built directly into the capsule’s response, delivering enhanced air and detail without the phase artifacts of EQ. The result is extended low-end response, exceptionally low distortion at high levels, and a microphone that integrates effortlessly with other mics in complex stereo and multi-mic setups.

Key Features

• Matched pair of high SPL omnidirectional reference microphones
• Lower noise floor and increased SPL handling compared to the standard Omni
• Transformerless, transistor-based circuit design
• Custom-tuned capsule with gentle presence lift around 10 kHz
• Extended, natural low-frequency response
• Excellent phase coherence and stereo field accuracy
• Extremely low distortion at loud sound sources
• Ideal for studio, measurement, and live sound applications

Applications

• Acoustic guitar, piano, and strings
• Percussion and drum overheads
• Choral and orchestral recording
• Reference and measurement recording
• Live sound reinforcement

Technical Specifications

• Directional Type: Omnidirectional
• Principle of Operation: Pressure
• Frequency Response: 20 Hz – 20 kHz
• Equivalent Noise Level: 18 dBA
• Maximum SPL: 140 dB
• THD: 0.5% up to 120 dB
• Output Impedance: 300 Ω