Sennheiser MZA 900 P In Line Preamp with Sensitivity Switch

The MZA 900 P phantom power adaptor is used to connect pre-polarized condenser microphones with a 3.5mm jack plug to microphone inputs with 10 – 52 V phantom powering (P12 – P48). The connected microphone is supplied via the adaptor.

The phantom power adaptor is available in two different versions:
MZA 900 P with lockable 3.5 mm jack socket (as evolution wireless)
MZA 900 P-4 with lockable 3-pin special socket

The adaptor 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(-4) for wired applications (e.g. in the studio) or with a transmitter of the evolution series for wireless applications. The MZA 900 P can also be used as a cable tester for XLR microphone cables.

• Robust metall chassis


• Switchable gain (0/-12dB)


• Switchable roll-off filter (125 Hz (–3 dB), 12 dB/oct)


• Two-colour control LED (phantom power, audio peak)


• Input 3,5mm stereo jack socket, lockable


• Output XLR-3M


• MZA 900 P with belt clip


• Instructions for use


• Warranty certificatee

• Frequency response: 20 – 20000 Hz (–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: Ø 19/22 mm, L 100 mm


• Weight: 60 g


• Operating temperature: -20 +60 °C