www.cleveracoustics.co.uk
4 Zone Mixer Amplifier series
User Manual
6
Operation instructions
Initial Start Up Procedure
•
Reset all “Level” or “Volume” controls to the “0” position on the front panel. Reset the BASS and TREBLE
controls to the centre point.
•
Reset CH1 thru CH5 gain controls & TEL level control on the rear panel to the “0” position.
•
Connect the audio sources & mains power input.
•
Switch on the amplifier using the mains switch on the front panel. The LED indicator (13) will illuminate
BLUE if the amplifier is ready for use and working correctly, if the indicator illuminates RED this indicates
the amplifier is under PROTECT status.
•
Adjust CH1 thru CH5 gain controls to match the input signal levels between different sources
CH1 to CH5 Operation (note: CH1 thru CH5 feature the same operation)
1)
BASS control:
BASS control offers tonal adjustment for the low frequency, turn
clockwise to increase and anti-clockwise to decrease.
2)
TREBLE control:
TREBLE control offers tonal adjustment for the high frequency, turn
clockwise to increase and anti-clockwise to decrease.
3)
VOLUME (LEVEL) control:
VOLUME (LEVEL) control offers adjustment for the
corresponding input channel, turn clockwise to increase and anti-clockwise
to decrease to reduce the volume.
4)
MUTE button:
Each channel input (CH1 thru CH5) may be muted by pressing the
MUTE button. The button features LED illumination when muted.
5)
Z1 to Z4 Zone Selector buttons:
Each of the CH1 to CH5 input channels can be
routed to any combination of the four output zones. The zone selector buttons
feature LED illumination, the LED will illuminate if the zone is selected.
6)
VOLUME (LEVEL) control:
VOLUME (LEVEL) control offers adjustment for the
corresponding output channel, turn clockwise to increase and anti-clockwise to
decrease to reduce the volume.
7)
MON button:
The MA 4060MP and MA 4120MP amplifiers both feature a Monitor
output function for status confirmation purposes. Select the MON button on the
desired channel to activate the Monitor function. The Monitor output features a
Volume (Level) control.
8)
Output VU Meter:
Each of the five outputs (Z1 to Z4 and MON) feature LED VU
meter plus CLIP and PROTECTION status indicators. The CLIP LED will illuminate to
indicate when the audio signal is too high, in this instance reduce the VOLUME by
turning the volume control anti-clockwise. The PROTECT LED will illuminate if the
amplifier detects a fault or a problem with the output circuit.
Z2
Z4
TREBL E
+10
MON
7
8
9
7
8
9
MUTE
Z1
Z3
LEVEL
CH 2
BASS
-10
-10
+10
ZONE 1
LEVEL
0dB
PROT
CLIP
-5
-10
-15
0
1
2
3
4
5
6
10
0
1
2
3
4
5
6
10
