Hi I have noticed that most of the Markbass Little Mark amp heads have an XLR-input without phantom power option. Ok, the Tube-models includes the phantom power option but all other does not. My intention was to use the XLR input for a condenser microphone attached to my double bass, but without phantom power it is not possible to use the XLR input. Ok, it would be fine if I went for the Little Mark Tube but the Mini CMD 121P comes with the Little Mark Combo amp which seems to be identical with the Little Mark III amp without phantom power option. How do you use the XLR input without phantom power option with these amps?