48 TASCAM DR-40Setting the external input typeWhen using an external input source, set the EXT IN switchon the left side panel according to the type of equipmentconnected.LINE:Use this setting when connecting line output jacks of externaldevices to the analog inputs of this recorder.MIC:Use this setting when connecting mics to the recorder.MIC+PHANTOM:Use this setting when connecting condenser mics that requirephantom power (+24V or +48V) to the recorder.CAUTIONDepending on this setting, the input level setting rangechanges. For this reason, the input level might change greatlywhen this setting is changed. Before changing it, you shouldturn the power OFF or turn the output level all the way down.Using phantom powerWhen the EXT IN switch on the left side panel is set toMIC+PHANTOM, phantom power (+24V or +48V) is turned onand sent to the connected mics.CAUTIONConfirm that phantom power is OFF before connecting a•line level device to a EXT MIC/LINE IN jack. If you connecta line level device while phantom power is being supplied,that device and this unit could be damaged.When using a condenser microphone, before connecting•to and disconnecting from a EXT MIC/LINE IN jack, confirmthat the phantom power for that jack is OFF. If you connector disconnect a mic while phantom power is being supplied,that mic and this unit could be damaged.Turn phantom power ON only when using a condenser•microphone that requires phantom power.Supplying phantom power to some types of ribbon•microphones could break them. Do not supply phantompower to a ribbon microphone if you are in doubt.When using USB bus power, the unit might not be able to•supply phantom power depending on the computer. In thiscase, use a TASCAM PS-P515U AC adaptor (sold separately).Some condenser microphones will not operate when•phantom power is set to +24V.4 – Recording