Harman Infinity REFERENCE 4555A - Crossover and EQ Pre-Amplifier Circuits

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
DRAW NO:
PA
RT NO:
PART NAME:
PRODUCT MODE:
SCALE: 1:1
UNIT: MM
SIZE: A3
REV:
DRAW BY:
CHECK BY:
APPROV BY:
DATA:
DATA:
ECN NO
DESCRIPTON
DATAAPPROVED
DATA:
FLA
T PRE
A1
2016-1-8
M J
FL PRE
R14A
10K
1
2
3
+
_
4580
U16A
1
2
3
VR3A
C100K
4
5
6
VR3B
C100K
R21A
11K
1
2
3
+
_
4580
U17A
R27A
12K
1
2
3
+
_
4580
U18A
C12A
563/MET
R16A
10K
C5A
22P
R22A
10K
C10A
333/MET
SGND
R20A
10K
3 2
1
4
SW2A
FRONT
LPF1
FLAT1
HP1
R29B
10K
R28B
10K
SGND
SGND
FL SG
Crossover 32Hz-320Hz 12dB/oct
FR PRE
R14B
10K
7
6
5
+
_
4580
U16B
7
8
9
VR3C
C100K
10
11
12
VR3D
C100K
R21B
11K
7
6
5
+
_
4580
U17B
R27B
12K
7
6
5
+
_
4580
U18B
C12B
563/MET
R16B
10K
C5B
22P
R22B
10K
C10B
333/MET
SGND
R20B
10K
7 6
5
8
SW2B
FRONT
LPF2
FLAT2
HP2
R29A
10K
R28A
10K
SGND
SGND
FR SG
Crossover 32Hz-320Hz 12dB/oct
RL PRE
R14C
10K
1
2
3
+
_
4580
U20A
1
2
3
VR4A
C100K
4
5
6
VR4B
C100K
R21C
11K
1
2
3
+
_
4580
U21A
R27C
12K
1
2
3
+
_
4580
U22A
C12C
563/MET
R16C
10K
C5C
22P
R22C
10K
C10C
333/MET
SGND
R20C
10K
3 2
1
4
SW3A
REAR
LPF3
FLAT3
HP3
R29D
10K
R28D
10K
SGND
SGND
RL SG
Crossover 32Hz-320Hz 12dB/oct
RR PRE
R14D
10K
7
6
5
+
_
4580
U20B
7
8
9
VR4C
C100K
10
11
12
VR4D
C100K
R21D
11K
7
6
5
+
_
4580
U21B
R27D
12K
7
6
5
+
_
4580
U22B
C12D
563/MET
R16D
10K
C5D
22P
R22D
10K
C10D
333/MET
SGND
R20D
10K
7 6
5
8
SW3B
REAR
LPF4
FLAT4
HP4
R29C
10K
R28C
10K
SGND
SGND
RR SG
Crossover 32Hz-320Hz 12dB/oct
RT2
NC
R36A
270R
RT1
NC
R36B
270R
RT4
NC
R36D
270R
RT3
NC
R36C
270R
SGND
P
N
P
1
2
3
+
_
4580
U19A
R31B
10K
C13B
101
SGND
7
6
5
+
_
4580
U19B
P
P
N
N
N
P
P
P
7
6
5
+
_
4580
U23B
R31D
10K
C13D
101
1
2
3
+
_
4580
U23A
NP
P
N
FL-EQ
P
FR-EQ
RL-EQ
RR-EQ
FL SG
RL SG
RR SG
FR SG