PREAMP:
The preamplifier is typically used to amplify signals from analog sensors such as microphones. It allows you convert a weak signal for sending to a
power amplifier or loudspeakers without any noise or distortion.
This parameter changes the Input PREAMPLIFIER.
The parameter has a 0.5 dB step for maximum +60.0 dB.
N.B.: When you adjust the PREAMP parameter, you have a real-time change of the parameter value and the real-time perception of the PREAMP
change. The Graphics will become white to indicate the parameter change, and it will become yellow again after the confirmation.