4-12M16 Microphone Amplifier Revision MA2005-7switch will illuminate. To cancel Phantom Power, simply press the48v switch again.NOTE: Phantom Power provides up to 14mA load current permicrophone.NOTE: Good operating practice is to Mute a particular channelbefore enabling or disabling Phantom Power. This prevents thepotential for any audio thumps occurring.4.18 High Pass Filter:To enable the selected channel’s High Pass Filter to remove any lowfrequency rumble, press the High Pass Filter switch. Once enabled,the switch will illuminate. To deactivate the High Pass Filter, pressthe switch again.GENERAL NOTE: Communication is bi-directional, so it is pos-sible to alter settings directly on the M16 and the RM16 (if se-lected to that channel). Any changes made directly to the M16will be reflected in the RM16. This applies to Gain, Pad, Phase,Reverse, Phantom Power and High Pass Filter settings.