APart MA200CDR Benutzerhandbuch

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MIXING AMPLIFIERS
MIXING AMPLIFIERS
26.  Line 4, 200mV / Mic 4 input. Use only one of these parallel wired inputs at the time!  To the XLR3 balanced input 
you can connect any microphone using a balanced, two wire shielded cable. (1=earth / 2 =hot / 3=cold).  For using 
condenser microphones see 41.  The Microphone 4 input is a XLR3/combo jack, which will accept a normal XLR3 
male plug or a ¼” TRS phone jack.
Line 4 is more sensitive than the other line (music) inputs, therefore ideal to connect wireless microphone receivers.
27.  Mic 2  Mic 3 XLR inputs. To the XLR balanced input you can connect any microphone using a balanced, two 
wire shielded, cable (1=earth / 2 =hot / 3=cold). 
28. Mic 1 XLR / DIN5 / Euro block. Use only one of these parallel wired balanced inputs at the time!  See wiring 
diagram at the back.  These three inputs have been wired in parallel with the balanced jack input at the front.  When 
you use the APart MICPAT or MICPACB paging microphones, connected directly to the DIN5 input, the signals fed into 
the line inputs are muted automatically while paging. The same kind of connection can be made using the euro block 
connector. To use “vox mute” see 29.
Phantom power: use condenser microphones see 41
29.  Vox mutes all. When you activate “vox mute” by turning this trimmer clockwise to the desired threshold level, the 
signal of any Mic1 input has priority.  When you don't need “vox mute”, turn this trimmer fully counter-clockwise to the 
“OFF” position.  
30.  Priority over music contact. By closing the contact of the euro block connector or contacts 4 and 5 of the DIN5 
connector, the signal of microphone 1 only has priority over the music sources (TUNER, CD and AUX).  All other 
microphones will remain active.  The contact closure of the contacts mentioned can give priority to the other 
microphone inputs as well.  At the same time 24 V DC will be available at terminal 20.  This is very useful when using 
up to 4 microphones in supermarkets, etc…
31.  Chime level. When one of the priority contacts are closed a chime can be activated by turning this trimmer 
clockwise to the desired chime level.  When you don't need a chime, turn this control fully counter-clockwise to the 
“OFF” position.
32.  Emergency / telephone input. Here you can feed the audio source for paging emergency messages, etc..  This 
input, at line level, has automatic activation above 200mV and has a line transformer to avoid ground loops (useful for 
telephone). Please use a balanced, shielded line cable.  Connect the HOT signal to +, the COLD to  and the shield to 
G (when connecting the shield only at the MA200CDR side, you might avoid a ground loop, which creates hum and 
buzz).  This signal is directly fed into the main amplifier.
No microphones should be connected directly to this input without using a mic to line pre-amplifier.
33.  Emergency / telephone level. With this potentiometer you can set the desired level of the line level signal 
inserted into the priority signal input 32.  This level will not be influenced by the “master” level.
34. FM antenna. This socket has to be used to connect your 75 ohm FM antenna.  You can use the shipped indoor 
“wire” antenna, but to improve the reception, we advise to install an outdoor FM antenna or to connect the MA200CDR 
to the cable radio network. 
Important notice:  In case you connect to the cable radio network, we recommend a ground isolator HF transformer in 
order to avoid hum (ground loops) or wire only connecting the HOT pin.
35. AM antenna socket. Here, the shipped indoor AM antenna has to be connected.
36. Airflow output. This airflow output should be kept free at all times!  To give the fan a longer life time, he only 
starts running when the heatsink reaches a certain temperature.  
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Now you are ready to get the best result on distributing your music and messages to your audience.
Your little giant is like a Swiss knife which will astonish you and many others!
In fact working with 100V loudspeakers is rather simple, when done in the right way.
Each 100V loudspeaker has a 100V transformer which can be set to a certain power, 
for example: 1,5  3 or 6W.  As the example shows, the sum of all loudspeaker settings should never 
exceed the amplifier's power specifications.  
Never use low impedance (= 8 ohm) loudspeakers on a 100Volt system, even not one. 
More technically:  When your paging amp has a maximum output of 200 watts at 100V, 
this means that the minimum impedance  connected should be at least 50 ohm (100x100/200).
To check your loudspeaker lines use a decent  impedance checker (example AP WM100).
How to deal with 100V loudspeaker systems
1.5 W
1.5 W
1.5 W
1.5 W
3 W
3 W
3 W
60 W
60 W
135 W
1.5 
1.5 
1.5 
1.5 
60 
60 
+
+
+
+
+
+
+
+
=
PAGING
MIC
AMPLIFIER POWER > LOUDSPEAKER LOAD POWER
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