Sennheiser MZA900P-4
P48 Phantom Power Adapter


The MZA 900 P phantom power adapter is used to connect pre-polarized condenser microphones with a 1/8" plug to microphone inputs with 10V- 52V phantom powering (P12 - P48). The connected microphone is supplied via the adapter. This version features a lockable 3-pin special socket.

The adapter is also a quick and flexible solution if a microphone is to be used for both wired and wireless applications. One and the same microphone can be used together with the MZA 900 P for wired applications (e.g. in the studio) or with a transmitter of the Evolution wireless series for wireless applications.


  • Robust metal chassis
  • Switchable gain (0/12dB)
  • Switchable roll-off filter (125Hz (-3dB), 12dB/oct)
  • Two-color control LED (phantom power, audio peak)
  • Input: 1/8"
  • Output: Lockable 3-pin special socket


  • Frequency response: 20Hz – 2kHz (–1 dB)
  • Gain: 0/-12 dB
  • Output voltage: 1,8V (P48), 0,6V (P12) @ 0dB gain
  • Output impedance: 100 Ohm
  • Min. terminating impedance: 5kOhms (P12 - P48) @ 0dB gain; 2kOhms (P12 - P48) @ -12dB gain
  • Phantom powering: P12 - P48, 10 - 52V, 2,6 - 2,8mA
  • Dimensions: 0.86", L 3.94"
  • Weight: 2.11oz
  • Operating temperature: -4ºF - 140ºF


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