YPA Microphones
YPA MM2-AMG Headworn Microphone for SHURE AKG SENNHEISER ATH PDF Print E-mail
Written by John Woo (Engineer)   
Sunday, 01 November 2009 08:31

MM2 Omnidirectional, Lo-Sens & DC

  • clean and transparent sound quality
  • extra low sensitivity
  • available in black and beige, left mounting

MM2 is a flexible miniature microphone solution, that features very easy and fast adjustment possibilities. The headband construction is unique in design, because it gives the user the choice between left and/or right mounting. It is also possible to use the MM2 Miniature Microphone Boom, Omnidirectional, separately, in applications where the headband is not needed.

MM2 offers a clean and transparent sound quality with lots of headroom.

Attention has been paid to the humidity problems that often occur in theatrical applications. A double vent protection system, a drop stopper on the microphone boom, together with water resistant materials inside the microphone, makes it more than difficult for the humidity to cause the headband Microphone to fail. The headband surface is matgold plated and headband earhooks are covered with a silicon hose.

The sensitivity is 1 mV/Pa to match the level of the human voice to the general input sensitivity of most wireless transmitters. If powered correctly the microphone will be able to handle sound pressure levels up to 135 dB SPL before clipping occurs.

A wide range of connection adapters makes it possible to use the MM2 with most of the professional wireless systems available plus 48 V phantom XLR connection.

MM2 is delivered with three foam windscreens and one cable clip.

The MM2 is a low DC and extra low sensitivity version. The sensitivity is adjusted to 1mV/Pa and the DC offset in the FET lowered, making matching to systems delivering down to 1.5 V power supply possible.


Specifications for MM2 Omnidirectional, Lo-Sens & DC

Directional characteristics: Omnidirectional
Principle of operation: Pressure
Cartridge type: Back Electret Condenser
Frequency range, ± 2 dB: 50 Hz – 20 kHz
Sensitivity, nominal, ±3 dB at 1 kHz: 1 mV/Pa; -45 dB re. 1 V/Pa
Equivalent noise level, A-weighted: Typ. 33 dB(A) re. 20 µPa (max. 37 dB(A))
Equiv. noise level ITU-R BS.468-4: Typ. 45 dB (max. 49 dB)
S/N ratio, re. 1 kHz at 1 Pa (94 dB SPL): 61 dB(A)
Total harmonic distortion (THD): < 1 % THD up to 123 dB SPL peak; < 1 % THD up to 120 dB SPL RMS sine
Dynamic range: Typ. 90 dB
Max. SPL, peak before clipping: 135 dB
Output impedance: 30 – 40 ohm
Cable drive capability: Up to 300 m (984 ft)
Power supply: For wireless systems: Min. 1.5 V – max. 12 V through YPA adapter.
Connector: MicroDot
Color: Black or beige
Microphone weight: 22 g
Microphone diameter: 3.5 mm
Cable length: 1.5 m
Cable diameter: 1.6 mm
Polarity: Positively increasing sound pressure produces positive going voltage on MicroDot pin
Operating temperature range: -10 to 45°C (14 to 113°F)

Polar pattern


Last Updated on Tuesday, 13 April 2010 05:15
Contact us | Privacy & Security | Join YPA | News | Site Map | About us