Sennheiser MZA 900 P Phantom Power Adapter, XLR 3, 3.5mm Jack Socket Figure 4 from INTRA LESIONAL TRIAMCINOLONE ACETONIDE INJECTION IN THE. 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 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. Features: Robust metal 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