SoundCraft MBI 10 Series, User Manual, Page: 9 / 54

Signal Levels
It is important to supply the correct input levels to the console, otherwise
signal-to-noise ratio or distortion performance may be degraded; and in extreme
cases damage to the internal circuitry may result. Likewise, on all balanced inputs
avoid sources with large common mode DC, AC or RF voltages, as these will reduce
the available signal range on the inputs. Note that 0dBu = 0.775V RMS.
The microphone input is designed for use with balanced low impedance
(150 or 200
Ω
) microphones.
Caution!
DO NOT use unbalanced microphones or battery powered
condenser microphones without isolating the +48V phantom power
- degraded performance or damage to the microphone may result.
Introduction to the MBI Series 10 5