L' Adapteur PPA

The PPA (Phantom Power Adapter) is used to connect the OKM to 48 volt phantom powered studio mixers and pre-amps. It provides an optimum voltage for the OKMs, and transformer isolated balanced mic level inputs.
The unit requires no battery, but uses the mixer/pre-amp’s 48V to power the circuitry that provides the bias voltage for the microphones. The mics are isolated from the 48V by two mini audio transformers.

Adaptor Pre-Amp Gain Level with Signal Level without Signal
A3 
DACS Mic Amp 
20dB 
0dB* 
-38dB** 
PPA 
DACS Mic Amp 
33dB 
0dB* 
-47dB** 
* Nominal sound source with microphone proximity constant in both cases. ** Controlled isolation environment constant in both cases