Metric Halo 2882 operating guide - Manual (Page 33)

Mobile I/O User’s Guide
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standard. If you are using one of the other level standards, Phantom
Power is automatically disabled. If you have enabled Phantom Power on
this channel, the button will be illuminated bright red. In addition, the
Mobile I/O front panel will illuminate the “Phantom” indicator if any of the
input channels have Phantom Power enabled.
• Phantom power is appropriate for use with condenser microphones or
other devices that can (and must) be powered by the preamp. Mobile I/O
limits the amount of phantom power to 10mA per channel, preventing
device damage due to shorts. Some (rare) microphones may require more
power than is provided by 10mA; you will need an external power supply
to power those mics.
3. Level Standard popup menu
• This control allows you to select the input level and impedance character-
istics for the input channel. The available choices are:
• Line +4
This format supports input levels up to +26 dBu. The input imped-
ance is approximately 10k, and the inline pad is engaged. Phantom
power is not available.
This format is appropriate for interfacing with professional audio
equipment.
• Line -10
This format supports input levels up to +26 dBu. The input imped-
ance is approximately 10k, and the inline pad is engaged. Phantom
power is not available.
This format is appropriate for interfacing with prosumer and con-
sumer audio equipment.
• Inst (Instrument)
This format supports input levels up to +6 dBu. The input impedance
is approximately 200k, and the inline pad is not engaged. Phantom
power is not available.
This format is appropriate for interfacing with high output imped-
ance sources like guitar pickups.
• Mic
Figure 18: Level Standard Pop-up Menu