5
Stereo LINE inputs accept 0 dBV (1 V) line level signals from CD and DVD players, multimedia devices, MP3
players, radio tuners, TV receivers, etc.
Turntables CANNOT BE CONNECTED
directly to the MZ54, as none of
the inputs has a built-in RIAA preamplifier.
4.2. Phantom power
An internal
jumper
activates the
Phantom
power supply for all microphone inputs at a time, allowing to connect
condenser microphones.
5. OUTPUTS
5.1. Zone outputs
The MZ54 has four main or zone outputs, all balanced and with Euroblock connectors: ZONE 1, ZONE 2, ZONE 3
and ZONE 4.
Euroblock connector should be wired as indicated:
Hot or direct signal
>
Pin +
Cold or inverted signal
>
Pin -
Ground
>
Pin
⊥
5.2. Phones output
In the MONITOR section, the PHONES output allows to monitor any zone output signal, from 1 to 4, as well as the
signal received through the fifth input of the equipment, dedicated to high-priority signals.
6. CONSIDERATIONS AND START-UP
6.1. Power-up
This is done by means of the
Power switch (27).
6.2. Input gain
The gain is controlled with knob (4)
for each input.
The
SP indicator (2)
lights to indicate a signal presence in this input.
The CLIP indicator (3)
warns that the channel is nearly overloaded. This indicator should never stay permanently
lit.
On the front panel, Input # 5 has a GAIN knob acting as a general control of this signal send to zone outputs in Priority
mode (see
4.2. Input 5, priority
). Additionally, inside the unit, 4 adjustment potentiometers allow to attenuate the
individual signal sent from Input 5 to the 4 output zones, customising this input sound volume for the different zones in
Priority mode.
6.3. Destination selection for Input #5
Next to the INPUT 5 gain knob on the front panel, use the ZONE 4 ways switch to define the destination zones for
this input in Priority mode (see section
4.2. Input 5, priority
). An output zone (from 1 to 4) is selected as Input #5
destination when its switch is activated (downwards).
If you want to work in Priority mode with activation by external contact closure, connect this external contact to PRIO
terminals on the back panel.
NOTE:
Remember that with the other input #5 operating mode (Evacuation/Emergency), the ZONE selector for
destination zones is deactivated, since this mode always mutes the current program signal in
All
zones outputs,
replacing it with Input #5 signal.
