3
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
ATT-442ST
SPEAKER VOLUME CONTROL
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
A
OUT 1
A
B
OUT 2
A
OUT 3
A
OUT 4
B
B
B
AMP
OFF
ON
L
R
FROM
AMP B
L
R
FROM
AMP A
L
R
TO
SPKR 3
L
R
TO
SPKR 4
L
R
TO
SPKR 1
L
R
TO
SPKR 2
➀
➁
L
R
FROM
AMP B
L
R
FROM
AMP A
L
R
TO
SPKR 3
L
R
TO
SPKR 4
L
R
TO
SPKR 1
L
R
TO
SPKR 2
Stereo Speakers 4
Stereo Speakers 3
Stereo Speakers 2
Stereo Speakers 1
ATT-442ST
0
5
10
RIGHT
LEFT
100 W
PO
W
ER
O
N
FULL PROTECTION TECHNOLOGY
0
5
10
STA-320
PRO POWER
AMPLIFIER
R
PR
OT
EC
T
OV
ER
HE
AT
BR
ID
GE
D
ST
ER
EO
CL
IP
RIG
HT
CL
IP
LE
FT
SU
BW
OO
FE
R
Amlifier A
0
5
10
RIGHT
LEFT
100 W
PO
W
ER
O
N
FULL PROTECTION TECHNOLOGY
0
5
10
STA-320
PRO POWER
AMPLIFIER
R
PR
OT
EC
T
OV
ER
HE
AT
BR
ID
GE
D
ST
ER
EO
CL
IP
RIG
HT
CL
IP
LE
FT
SU
BW
OO
FE
R
Amlifier B (optional)
➂
1
2
3
4
5
6
