Block Diagram - Infinity Reference Series 1300a Service Manual

1
1300a Reference Series
D
C
B
A
1
2
BALANCED
INPUT
UNIT
OP
BALANCED
INPUT
UNIT
GAIN CONTROL
OP OP
AUX OUT L
OP
AUX OUT R
OP
2
3

BLOCK DIAGRAM

MODEL FREQ BASS BOOST
VARIABLE LP VARIABLE
11HZ--320HZ/12dB 0dB--6dB/50HZ
11 25 320 11 50
OP
+
Battery POWER SUPPLY
-
3
7
MAIN AMP
2ohm/4ohm
FRONTL
320
AMP
SPEAKER
+15V
+V
+VCC
-VCC
-V
-15V
4
D
C
B
A
4