A.The phantom power supply switches are provided separately for the channels 1/2 and channels 3/4 and can be operated separately. However, the phantom power supply cannot be powered on or off for a particular single channel.
Note:
Be sure to power off the phantom power supply unless a condenser microphone requiring it is connected. If you supply the phantom power supply to a dynamic microphone, it may get faulty. Refer to the manual of the microphone for its specifications.
Reference:
Phantom power supply specifications
DC48V, 8mA Max (25mA or less for the total of all channels)
(2010/03/29)