Direct Outputs; Audio Units; Connection With The Mains - Omnitronic MAVZ Serie Bedienungsanleitung

Direct outputs

Either PA speakers with 70 V and 100 V audio transformers or 4-16 Ω speakers or speaker groups can be
connected to the terminal block "DIRECT SPEAKER OUTPUT".
1 Connect PA speakers to the terminals "COM" (negative pole) and "70V" or "100V" (positive pole).
2 Connect low-impedance speakers to the terminals "COM" (negative pole) and "4Ω", "8Ω" or "16 Ω"
(positive pole). When interconnecting several low-impedance speakers, it is especially important to
obtain the minimum impedance at the respective terminal.
The input impedance of the speaker systems should at least be the same or even higher than the
output impedance of the amplifier.
Example for the calculation number of speakers/impedance:
Number of speakers
1 speaker at 8 Ω
2 speakers at 8 Ω each
2 speakers at 8 Ω each
3 speakers at 8 Ω each
3 speakers at 8 Ω each
4 speakers at 8 Ω each

Audio units

• MIC 1: The rear panel provides a balanced XLR input for connecting a microphone. To enable a +48 V
phantom power for condenser microphones set DIP switch 3 to the upper position. Alternatively, use the
unbalanced 6.3 mm jack for connecting a dynamic microphone. The level is adjusted by the "MIC 1"
control.
Caution!
If the phantom power is switched on, no microphone with unbalanced output must be connected. Otherwise
this microphone may be damaged. To prevent switching noise, only switch on phantom power when the
amplifier is switched off or when all output controls are set to minimum.
To enable the priority circuit set DIP switch 4 to the upper position. In case of an announcement via this
input, the level of the other channels is attenuated. After the announcement, the level of the other channels
slowly returns to the original level.
• MIC 2-3/LINE 1-2: These unbalanced 6.3 mm jacks connect both dynamic microphones and units with line
level. Set DIP switch 1 and/or 2 to the lower position for microphone level or to the upper position for line
level. The level is adjusted by the front controls (8) and (9).
• LINE 3-4: Use these unbalanced RCA jacks to connect units with line level (e.g. CD players). The level is
adjusted by the front controls (10) and (11).
• LINE OUT: This unbalanced RCA output provides the mixed signal to connect, e.g. an additional amplifier

Connection with the mains

Finally connect the device to a mains outlet with the mains cable.
≙ Impedance
8 Ω
4 Ω (parallel)
16 Ω (in line)
2.66 Ω (parallel)
24 Ω (in line)
2 Ω (parallel)
22 • EN