Bose Powered Acoustimass 30

21
L in
+R
+L
-R
+L
L-R
L+R
L out
R out
C out
S out
B out
+
+
+
+
-
-
R in
--
DETECTOR
1-
DC CONTROL
DC CONTROL
1-
L-R
L+R
L-R
L-R
L-R
L
R
+
-
+
-
+
-
DUAL
VOL.
CTL.
Figure 9. Surround Decoder Block Diagram