MIXING AMPLIFIERS
MIXING AMPLIFIERS
10
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The MA200 is a professional 4 zone PA mixing amplifier for commercial and industrial applications.
Rarely seen on its competitors, all microphone inputs have integrated speech filters and they are high-class
transistor-balanced type, allowing good control of hum and noise over long cables.
He's able to drive 8-ohm or constant-voltage loudspeaker lines (50-70-100V).
The amplifier has integrated radio, 4 microphone inputs, 4 selectable line sources and
one emergency/telephone input.
Mic input 1 is meant to be the main microphone paging input, for its signal can be fed via the
front ¼” TRS phone jack or via a combo XLR3/jack, DIN 5 or euroblock connector at the back.
The MA200 has a three level priority system.
The emergency/telephone input at the back has the highest priority. Its signal goes directly to the main amplifier,
bypassing any front control, and an attenuator next to the input sets its level. Microphone input 1 has the second
priority level. With the control next to the XLR input, the vox (voice activated) mute for microphone 1 can be activated
and mutes all other signals, except the emergency input. The third level can be activated via a dry contact (“priority
over music”) and mutes all background music inputs only. This contact activates the chime as well, only when a level
has been set using the “chime level” potentiometer.
4 Zones can be individually switched on and off.
Compared to other zone amplifiers, the total load (200W) can be drawn in any combination from the 4 zones.
Zone 4 has an extra feature. Via the selectors at the front, you can choose whether this zone receives back ground
music only, messages only, both or none of them.
When any priority has been activated, 24V DC output (max.1A) will be available to activate priority relays of
loudspeaker attenuators or other devices.
When needed, the signals distributed via your MA200 mixing amplifier, can be recorded via the record output.
19” Brackets are shipped along with your amplifier.
The MA200 is the all in one device to built larger professional industrial sound applications. You can insert an extra
equalizer (such as the APart PXQ2215) into the signal path or add extra power amps (APart PA240P), using the pre
amp out/power amp in RCA connectors. When shipped a RCA bridge has been inserted.
The MA200 complies with the CE standards.
Before using your MA200, take a few minutes to read these instructions carefully. This little time can
avoid a lot of headaches afterwards.
1. Keep this manual for future reference.
2. Water and humidity are the biggest enemies of electric equipment. Operating it under moist conditions can even
be dangerous.
3. Clean only with dry cloth.
4. Do not operate near heaters or place it on other apparatus which produce a lot of heat.
5. Be sure your unit is always connected to the electrical safety earth. Do not defeat the safety purpose of a
grounding-type plug. If you have any doubt, please consult your dealer or a qualified technician.
6. Take care for the power cord. Never use a damaged power cord and install it in such a way that no one can
walk on it.
7. Only use accessories specified by the manufacturer.
8. Distorted sound indicates that operating conditions are bad. Decrease the volume, check the speakers and
sources are connected, or switch off the unit.
9. Disconnect the unit from the mains power supply, when you do not use it for a longer period.
10. When smoke ore bad smell comes from your MA200, switch off immediately and disconnect from mains.
11. This apparatus should only be serviced by qualified personnel. If not, the warranty might be void.
12. Do not remove the cover panel. Removal of the cover will expose hazardous voltages.
13. We advise to use the back mounting holes as well; certainly in mobile racks.
14. Do not block the air inlets of the amplifier and see that sufficient cool air can be supplied.
15. Please check the units' condition after unpacking. If the outside of the carton box has been damaged,
inform your shipper immediately.
16. Check all speaker lines for load charge (by APart wattmeter WM100) and short circuits, before connecting
them to your amplifiers!
APart MA200 mixing amplifier
Important Safety Instructions
MA200 BLOCK DIAGRAM
PHANTOM
2
3
1
PHANTOM
2
3
1
MUTE
JP4
PHANTOM
2
3
1
MUTE
JP5
PHANTOM
2
3
1
MUTE
JP11
MUTE
VOX
MUTE
+
-
+
-
+
-
+
-
AUX
CD
TUNER
Pre Amp
Pre Amp
Pre Amp
Pre Amp
+
-
CHIME
REQ OUT
PreAmp
OUT
PowerAmp
IN
+
-
MASTER
TONE
MUTE
+
-
+
-
POWER AMP
AUTO GAIN
CONTROL
100V
70V
50V
8 ohm
COM
24V/1A
PRIORITY
-
+
+
Z1
+
Z2
+
Z3
DIN5
+
MUSIC
+
MICRO
MUTED BY
PRIORITY
+
-
VOX
Pre Amp
1V
EMERGENCY
TELEPHONE
TRAFO
VOLUME
INPUT1
VOLUME
INPUT2
VOLUME
INPUT3
VOLUME
INPUT4
VOLUME
INPUT5
300mV
TUNER OUT
L
R
500mV
CD
IN / OUT
L
R
500mV
AUX
200mV
LINE 4
L
R
1.5mV
MIC 4
1.5mV
MIC 3
1.5mV
MIC 2
1.5mV
MIC 1
P
R
IO
R
IT
Y
XLR3
SCREW4
ZONE1
ZONE2
ZONE3
ZONE4
+
-
Hi-Q Pre Amp
SPEECH FILTER
+
-
Hi-Q Pre Amp
SPEECH FILTER
+
-
Hi-Q Pre Amp
SPEECH FILTER
+
-
Hi-Q Pre Amp
SPEECH FILTER
PROTECT
SIGNAL
ON
100% LIMIT
CHASSIS
AUDIO GND
FUSE
FUSE
SWITCH
POWER SUPPLY
24Volt DC INPUT
JP3
