Connections - Omnitronic ADI-OO4M Bedienungsanleitung

5. CONNECTIONS

Switch off the audio interface and the units to be connected before making or changing the connections.
1. Both microphones and high-impedance music instruments such as electric guitars or electric bass
guitars can be connected to the inputs HiZ/MIC.
• Connect microphones (balanced or unbalanced) via XLR plugs or 6.3 mm jacks. Balanced cables
provide +6 dB more output and guarantee a better protection against interference in case of long cable
runs. For phantom-powered microphones a +48 V phantom power can be switched on (see chapter
6.1).
• Connect high-impedance music instruments via 6.3 mm jacks.
2. For connecting a signal source with line level output (e.g. CD player) use the stereo RCA input RCA IN
(white jack = left; red jack = right).
3. For the amplification or recording of the preamplified signals of the inputs Hi-Z/MIC and RCA IN and the
signals from the computer connect a PA amplifier for speakers or subsequent units with line level to the
balanced 6.3 mm jacks OUTPUT R/L.
4. Use the supplied USB cable to connect the audio interface to an available USB port on your computer.
The audio interface is compatible with both PC and Mac computers and requires no installation
procedure or drivers for the correct functioning.
5. To monitor the analog input signals and the signals from the computer connect stereo headphones with
3.5 mm plug to the headphones output MONITOR. Alternatively, a monitor system such as desktop
speakers may be connected to the output.
6. For connection of a digital audio signal in S/PDIF format use the jack S/PDIF IN. The input can only be
used in connection with a computer.
7. A subsequent digital audio device with S/PDIF input can be connected to the output S/PDIF OUT to pick
up the signals from the computer. The output can only be used in connection with a computer.
8. For an operation independent of the computer the audio interface can also be supplied with power via
the supplied power unit or battery.
• Connect the cable of the power unit to the power input 9V AC/DC and the power unit to a power outlet.
Use the unit only with the supplied power unit. Always disconnect the mains connector when you wish
to change connections, move the unit to a different place or if it is not used for a longer period.
• To insert the battery remove the battery cover. Insert the 9 V battery as indicated in the battery
compartment. Close the compartment again with the cover. If the audio interface is not used for a
longer period (approx. 1-2 weeks), please remove the battery to prevent damage in case of battery
leakage. Please refer to further explanations in chapter Safety Instructions.
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