Features and Info:
- 5 Ohm Low Impedance
- 15 dB Noise Canceling
- Boom Adapter NOT Included
- Military Grade
The M-133 Dynamic Microphone is a moving voice coil microphone mainly designed for use in positive pressure type oxygen mask or pressure type helmets and gas masks. The microphone has application for certain types of ground crew headsets and specific types of low altitude headsets.
The M-133 style dynamic microphone is designed and manufactured of the same high quality materials and methods found in other styles of Acousticom Corporation microphones. It is also intended to provide audio communication in high noise environments as described in MIL-PRF-26542E.
Baseline Performance Characteristics:
Color: Lusterless Black
Weight: a maximum of 16 grams (without MT-2189/AIC bracket)
Frequency response: 200Hz to 6000Hz
Sensitivity at ground level: 36.90dB to 42.92dB (re 1uv)
Sensitivity at a simulated altitude: equal to but not more than 8dB of the ground level sensitivity when tested at 25,000ft.
Vibration resistance: method 201 of MIL-STD-202
Bounce resistance: Procedure III of MIL-STD-810
For additional product specifications or more information, please click Contact Us under the Information Tab to the left.
Cross Reference Part Numbers:
- Acousticom - 4500-CA
- Astrocom - MODEL 10909
- NSN 5965-01-441-8697