TC Helicon VoiceSolo FX150 Active Vocal Monitor with Effects AS ISNotes Unit powers on but does not produce a signal when a mic is plugged in Lights and controls function no power supply included A TC Helicon VoiceSolo FX150 Active Vocal Monitor with Effects AS IS in Non Functioning condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is