BACK PANEL
1.-
SPEAKER OUTPUT TERMINALS:
4-8 Ω low impedance output and 100, 75 and 25 V high impedance lines.
2.- AC power supply socket.
3.-
PRE OUT/AMP IN:
output connectors from the PRE OUT and input connectors to the AMP IN. Both
connectors are connected by an external bridge to allow the signal to pass.
4.-
AUX 1 and AUX 2:
auxiliary line inputs.
5.-
INPUT 1 PRIORITY:
priority depending on the level in INPUT 1. On closing these contacts, the priority is
activated in INPUT 1 depending on the signal level. In this way when a signal is detected in INPUT 1 the rest
of the inputs will be weakened.
6.-
GND:
earth. This screw lets you connect the equipment to earth, if the 230 V AC connection used has not
already got one.
7.-
CHIME PRIORITY:
musical chimes and priority for INPUTs 2 to 4. On closing these contacts, the musical
chimes will be played if they have previously been activated with the CHIME button on the front panel. Priority
is also activated in INPUTs 2 to 4, weakening the AUX 1 and AUX 2 inputs.
8.-
SIREN:
when these contacts are closed, the siren goes off.
9.-
TEL. PAGING and VOL:
signal input for the telephone switchboard with Euroblock connector and VOL
control.
10.-
INPUT 1 to 4:
balanced mic./line inputs with Combo connector (Cannon/XLR and 6.3 mm stereo jack)
and balanced Euroblock. The input is adjusted depending on the characteristics of the signal using the
DIP-4 switch.
– Input sensitivity is selected using switch 1 (Line/Mic), for microphone signal or line signal.
– Switch 2 (Phase) inverts the phase of the input signal. This is used to avoid cancellations and to correct
phase inversions resulting from the connection, specially for unbalanced signals.
- On activating switch 3 (High Pass Filter), a high pass filter is inserted in the signal path to reduce low
frequency noise.
- Switch 4 (48 V Phantom) activates phantom power for condenser microphones (in Cannon/XLR and
Euroblock connector).
11.- Ventilation slits. The speed of the fan is variable depending on the temperature.
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EN
MAZ-4250E_MANUAL_EN_20140910_Maquetación 1 10/09/2014 10:26 Page 5
