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Niles MSA-10A Installation Manual page 5

Speaker selector with autoformer impedance matching system for connecting up to 10 pairs of speakers

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Figure 1
Amplifier
Speaker "A" Out
Figure 2
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
Example of using the MSA-10A to connect 10 pairs
of speakers to a receiver or amplifier.
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
-
-
-
-
-
-
-
-
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
AMPLIFIER
SPEAKER 10
SPEAKER 9
SPEAKER 8
Unswitched AC Outlet
150
150
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
-
-
-
-
-
-
-
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
AMPLIFIER
SPEAKER 10
SPEAKER 9
SPEAKER 8
Speaker Pair 10
-
-
-
-
-
-
-
-
-
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
SPEAKER 7
SPEAKER 6
SPEAKER 5
SPEAKER 4
SPEAKER 3
(Included with MSA-10A)
Example of using the MSA-10A
with a tube-type amplifier.
-
-
-
-
-
-
-
-
-
-
-
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
L
+
SPEAKER 7
SPEAKER 6
SPEAKER 5
SPEAKER 4
SPEAKER 3
SPEAKER 2
Speaker Pair 1
-
-
-
-
-
R
R
+
L
+
L
R
R
+
L
+
L
R
R
+
SPEAKER 2
SPEAKER 1
16V AC Adapter
-
-
-
-
L
R
R
+
L
+
L
R
R
+
SPEAKER 1
3

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