9.3
Wiring amplifiers to columns
9.3
Wiring amplifiers to columns
Wiring amplifiers to columns is straightforward: simply connect each channel of the MPA6150 amplifier to the
corresponding channel of the column and provide a common ground, as illustrated by figure
SA1
0
0
P
SA1
8
0
P
2+
3+
GND
1+
Not
Used
CH1
CH3
CH4
CH2
+
-
+ -
+
-
+ -
2+
3+
1+
Column output
on channels 1, 2, 3
GND
CH3
CH5
CH4
CH6
+
-
+ -
+
-
+ -
1+
2+
3+
Column output
on channels 4, 5, 6
GND
3 channels
2+
3+
GND
1+
Not
Used
5+
6+
4+
SA2
5
0
P
CH1
CH3
CH5
CH4
CH2
CH6
+
-
+ -
+
-
+ -
+
-
+ -
1+
2+
3+
4+
5+
6+
GND
6 channel column cabling
on MPA6150 amplifier
6 channels
Figure 18: MPA6150 to column wiring
9.4
Wiring the microphone (MIC option)
The MIC option consists of a microphone integrated inside the column and a daughter board placed inside the UT26
processor, which supplies phantom power on input 2 of the processor.
The microphone output of the column should be linked to input 2 of the UT26 processor using a shielded conductor
pair. Wiring is described in table
GND
+
-
Pin 1
Pin 2
Pin 3
Table 5: Wiring of the microphone: standard XLR.
Last update: December 23, 2010
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