Installation; Connections - Omnitronic PAP-350 User Manual

6. INSTALLATION

This amplifier is built for 19" racks (483 mm). This rack use should be a double-door rack where front panel
and rear panel can be opened. The rack should be provided with a cooling fan. When mounting the amplifier
into the rack, please make sure that there is enough space around the device so that the heated air can be
passed on. Steady overheating will damage your device.
You can fix the amplifier with four screws M6 in the rack. If several devices are to be installed, make sure
that you leave 1 unit space between the devices.
Be careful when mounting the amplifier into the rack. Put the heaviest devices into the lower part of the rack.
Be aware that fastening the amplifier with four screws on the front panel is not enough. In order to ensure
safety, additional fastening by using ground and side bars is necessary.
If racks are to be transported or used for mobile use, additionally fasten the devices by connecting the rear
brackets with the side or ground bars of the rack. Thus, the amplifier cannot be pushed backwards. The front
panel alone is not designed to absorb acceleration forces occuring during transportation.

7. CONNECTIONS

High voltage at terminals. Switch off amplifier before connecting!
The electrical connection must only be carried out by skilled personnal!
7.1 Inputs
Connect the output of a preamplifier or mixer to the XLR or 6.3 mm jack INPUT. Both jacks are provided for
balanced signals. The input signal should have line level.
Input cables should be short and direct, since high frequencies will mostly be absorbed if the cables are
unnecessarily long. Besides that a longer cable may lead to humming and noise trouble. If long cable runs are
unavoidable, you should use balanced cables.
• Occupation balanced XLR connection:
DANGER TO LIFE!
DANGER TO LIFE!
Balanced use with XLR connectors
2 1
1 = Ground / Shield
2 = Hot (+)
3 = Cold (-)
3
Input
For unbalanced use pin 1 and pin 3 have to be bridged
1
21/25
2
3
Output
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