Question How do I enable Mic Control on my VoiceSolo FX150 Answer First, make sure the +48V (Phantom Power) switch is pressed IN on the back of the FX150 unit. Mic Control cant work without Phantom Power. To enable Mic Control on Channel 1 or Channel 2 press and hold the Reverb Level button for five seconds. You will need to perform this procedure on each channel that youd like Mic Control active on. When Mic Control activates, you will see the Level button blink a few times. To disable Mic Control, repeat the above process for each channel. The button will blink again to verify that Mic Control has been turned off.