Lately I've noticed that I have to use quite a lot of gain on my mic preamps to get a good level out of my Phanthera V.

I decided to use a 1 kHz sine wave to test the Phanthera against my AKG C414.

According to specs the Brauner has a higher sensitivity than the C414:

Brauner 33 mV/ Pa Cardiod

C414 20 mV/Pa (-34 dBV) +/-0.5 dB