Beyerdynamic MM 1 is a precision condenser measurement microphone specifically designed for sound reinforcement and acoustic analysis. It is ideal for use with spectrum analyzers to measure the frequency response and sound pressure levels of loudspeaker systems, making it perfect for research, development, and room acoustic testing. Its slim, tubular construction minimizes acoustic interference, ensuring accurate high-frequency readings and a natural sound reproduction thanks to its linear frequency response.
Handcrafted in Germany, the MM 1 is calibrated for diffuse-field measurements and provides exceptional accuracy with low self-noise and high SPL handling. Its omnidirectional pickup pattern captures sound evenly from all directions, while the electronically balanced output ensures clean signal transmission for precise measurement applications in studios, live venues, and laboratories.
KEY FEATURES
- Designed for professional acoustic measurement and sound analysis
- Linear frequency response calibrated for diffuse-field (90°)
- Extremely low tolerance of ±1.5 dB between 50 Hz and 16 kHz
- Optional individual calibration data for free-field 0° and 90° available
- Perfect for speaker alignment and studio acoustic calibration
- Slender housing with extended capsule for minimal acoustic interference
- Electronically balanced output for clean signal transmission
- Handcrafted in Germany with high precision components
TECHNICAL SPECIFICATIONS
- Transducer type: Condenser (back-electret)
- Operating principle: Pressure
- Frequency response: 20 Hz – 20 kHz (50 – 16 kHz ±1.5 dB, diffuse-field calibrated)
- Polar pattern: Omnidirectional
- Sensitivity: 15 mV/Pa (−36.5 dBV) ±1 dB
- Nominal impedance: 160 Ω
- Recommended load impedance: ≥ 2.2 kΩ
- Max SPL: 122 dB SPL (1 kHz, 1% THD, RL = 2.2 kΩ)
- Signal-to-noise ratio: > 57 dB (ref. 1 Pa)
- Equivalent noise level: ~26 dB(A)
- Power supply: 12–48 V phantom power
- Current consumption: ~1.9 mA
- Output: Electronically balanced
- Connector: 3-pin XLR (male)
- Dimensions: Length 139 mm, shaft Ø 19 mm, head Ø 9 mm
- Weight: 73 g
