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Crest Audio CA Series Power Amplifiers Appendix B
Models CA2, CA4, CA6, CA9, CA12, CA18
Appendix B - CA Block Diagram
BRIDGED
-
PARALLEL
-
STEREO
SWITCH
R
T
2
3
1
2
3
1
R
T
2 / 3
PIN 2 / 3 +
JUMPER
(REAR PANEL SWITCH
ON CA18)
+
- INVERTED
NON-INVERTED
PREAMP
PREAMP
ATTENUATOR
ATTENUATOR
AMP FRONT END
AMP FRONT END
OUTPUT STAGE
OUTPUT STAGE
OUTPUT RELAY
OUTPUT RELAY
2 / 3
PIN 2 / 3 +
JUMPER
(REAR PANEL SWITCH
ON CA18)
+
-
INVERTED
NON-INVERTED
B
B
+
A
-
A
+
-
CHANNEL A
CHANNEL B
†
†
†
PREAMP INCORPORATES INPUT
SENSITIVITY/VOLTAGE GAIN JUMPER
(REAR PANEL SWITCH ON CA18)