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Bosch Security Systems | 2006-11 | 9922 141 50751en
Plena Power Amplifier | Installation and User Instructions | Amplifiers en | 16
3.5.5 Constant voltage loudspeakers
The power amplifier can drive 100 V constant voltage
loudspeakers at full power (100 V) or half power (70 V).
Connect the loudspeakers in parallel and check the
loudspeaker polarity for in-phase connection. The
summed loudspeaker power should not exceed the
rated amplifier power.
3.5.6 Low impedance loudspeakers
Connect low impedance loudspeakers to the 8 Ohm/0
terminals. This output can deliver the rated output
power into an 8 Ohm load. Connect multiple
loudspeakers in a series/parallel-arrangement to make
the combined impedance 8 Ohm or higher. Check the
loudspeaker polarity for in-phase connection.
3.5.7 Power
Use the mains lead to connect the amplifier to the
power supply.
figure 3.10: Priority input and control terminals
1
0
0
V
0
1
0
0
V
0
Pri
or
it
y
C
o
n
t
r
ol
l
e
d
O
u
t
p
u
t
O
f
f
O
n
2
4V
D
C
I
n
A
p
p
a
r
a
t
u
s
de
l
i
v
e
r
e
d
c
o
nn
e
c
t
o
r
e
d
f
o
r
2
3
0
V
~
M
a
i
n
P
ow
e
r
B
a
t
t
e
r
y
In
pu
t
F
a
u
lt
Re
lay
s
'
O
u
t
p
u
t
N
O
C
O
M
N
C
O
f
f
O
n
N
O
C
O
M
N
C
N
O
C
O
M
N
C
I
n
p
u
t
1
P
r
i
o
r
i
t
y
Lo
o
pt
h
r
o
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g
h
1
I
np
u
t
2
P
r
o
g
r
a
m
Lo
o
p
t
h
r
o
u
g
h
2
I
np
u
t
1
P
r
i
o
r
i
t
y
2.
.
.
2
4
V
-
I
np
u
t
1
0
V
-
I
np
u
t
2
I
np
u
t
2
E
n
a
bl
e
2.
.
2
4
V
-
E
n
a
bl
e
0V
-
M
u
t
e
1
0
0
V
0
S
l
a
v
e
I
np
u
t
1
0
0
V
+
+
-
-
1
0
0
V
0
7
0
V
0
8
o
h
m
1
0
0
V
/
7
0
V
S
e
l
e
c
t
i
o
n
(
1
2
A
)
P
r
i
o
r
i
t
yOn
l
y
0
0
N
o
P
r
i
o
r
i
t
y
P
r
i
o
r
i
t
y
F
7
0
1
F
7
0
2
B
a
t
te
ry
P
o
w
e
r
D
e
t
e
c
t
i
o
n
P
i
l
o
t
-
t
o
n
e
D
e
t
e
c
t
o
r
2
3
0
V
~
2
4
0
V
~
D
e
s
i
gn
&Q
u
a
l
i
t
y
T
h
e
N
e
t
h
e
rl
a
n
ds
L
B
B
1
9
3
8
/
1
0
N
L
-
4
8
2
7
H
G
-
1
0
P
l
e
n
a
4
8
0
WP
ow
e
r
Am
p
l
i
fi
e
r
M
a
x
.
o
u
t
p
u
t
p
ow
e
r
7
2
0
W
R
a
t
e
d
ou
t
p
u
t
p
o
w
e
r
1
80
W
2
3
0
V
~
,
5
0/
6
0
H
z
S
/N
.
8
9
0
0
1
9
3
8
1
0
0
1
A
0
3
54
1
3
M
a
d
e
i
n
C
h
i
n
a
N6
6
3
R
a
t
e
di
n
p
ut
P
o
we
r:
1
6
00V
A
I
n
pu
t
1
P
r
i
o
r
i
t
y
Sl
a
v
eI
np
ut
100V
I
n
pu
t
2
E
n
a
b
l
e
1
0
0
V0
10
0V
70
V
0
0
8
D
ir
e
ct O
utpu
t
Inpu
tI
n
p
u
t
Inpu
t2
-
P
r
o
gr
am
I
n
put1
-
P
r
ior
ity
2
.
.
2
4
V
D
e
f
a
u
lt
O
f
f
G
N
D2
.
.
2
4
V
D
e
f
a
u
lt
O
n
G
N
D
Priority Only No Priority
100 V 0 100 V 0
Priority Controlled Output
24V DCIn
100V 70V008
Direct O utput
Priority Only
No Priority
70 V100 V
8 Ohm
8 Ohm
8 Ohm
8 Ohm
8 Ohm
8 Ohm
4 Ohm
4 Ohm
LBB1938
figure 3.11: Mains lead
1
0
0
V
0
1
0
0
V0
Priori
ty
C
o
n
trolled
Outpu
t
2
4
V
D
C
I
n
Appara
t
us delivered
connecto
red
for23
0
V~
M
ain P
ower
B
attery
t
elays'
Outpu
t
N
C
Off
O
n
N
O
C
O
M
N
C
N
O
C
O
M
N
C
1
00V
0
70V
0
8
o
h
m
1
00V/
7
0V
Se
l
e
c
t
i
o
n
(
1
2A)
Prio
r
it
y
On
l
y
0
0
N
o
P
ri
o
ri
t
y
P
ri
o
r
i
t
y
F
7
0
1
F
7
0
2
B
atter
y
P
o
wer
Det
ectio
n
23
0V
~
240V~
Rated input
P
ow
er : 1
6
00VA
100V
70V
0
0
8
Direc
tO
utput
100V
0
1
0
0V
0
P
r
i
o
rit
yC
o
n
t
r
o
l
l
ed
O
u
t
put
O
ff
O
n
2
4
VD
C
I
n
A
p
p
a
r
a
t
u
s
d
e
l
i
ve
r
ed
co
nn
e
c
t
o
r
e
d
fo
r23
0V
~
Ma
i
n
P
o
we
r
B
a
t
t
e
r
y
I
n
p
u
t
F
au
l
tR
e
l
ays'
O
u
t
put
N
O
C
O
M
N
C
O
ff
O
n
N
O
C
O
M
N
C
NO
C
O
M
NC
I
n
p
u
t
1
P
r
i
o
r
i
t
y
L
o
o
p
t
h
r
o
u
g
h
1
I
n
p
u
t
2
P
r
o
g
r
a
m
L
o
o
p
t
h
r
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h
2
I
n
p
u
t
1
P
r
i
o
r
i
t
y
2
.
.
.
2
4
V
-
I
n
p
u
t
1
0
V
-
I
n
p
u
t
2
I
n
p
u
t
2
E
n
a
b
l
e
2
.
.
2
4
V
-
E
n
a
b
l
e
0
V
-
Mu
t
e
1
0
0
V
0
S
l
a
v
e
I
n
p
u
t
1
0
0
V
+
+
-
-
1
0
0
V
0
7
0
V
0
8
o
hm
1
0
0
V
/
7
0
V
S
e
l
e
ct
i
o
n
(
1
2
A
)
P
r
i
o
r
i
t
y
O
n
l
y
0
0
N
o
P
r
i
o
r
i
t
y
P
r
i
o
r
i
t
y
F
7
0
1
F
7
0
2
B
a
t
t
e
r
y
Pow
e
r
D
et
e
ct
i
o
n
Pi
lot
-
t
o
n
e
D
et
e
ct
or
2
3
0
V~
2
4
0
V~
D
e
s
i
g
n
&
Q
ua
l
i
t
y
T
he
N
et
h
er
l
a
nd
s
L
B
B
1
9
3
8
/
1
0
N
L
-
4
8
2
7
H
G
-
1
0
P
l
e
n
a
4
8
0W
P
o
w
erA
m
pl
i
f
i
e
r
M
a
x
.
o
u
t
p
u
t
p
o
w
e
r7
2
0W
R
a
t
e
do
ut
p
u
t
p
o
w
e
r1
8
0W
2
3
0V
~
,
5
0
/
6
0
H
z
S
/
N
.
8
9
0
0
1
9
3
8
1
0
0
1
A
0
3
5
4
1
3
M
a
d
e
i
n
C
h
i
n
a
N
6
6
3
R
a
te
d
in
pu
t
P
o
w
e
r
:
1
6
0
0
V
A
In
p
u
t1
P
r
i
o
r
i
t
y
S
l
a
v
e
I
nput
1
0
0
V
Inpu
t2
E
n
ab
l
e
1
0
0
V
0
1
0
0V
70V0
0
8
D
i
r
e
c
tO
u
t
p
ut
I
n
p
ut
I
n
p
ut
I
n
p
u
t2
-
P
r
o
g
r
a
m
I
n
p
u
t1
-
P
r
io
r
it
y
2
.
.2
4
V
D
e
f
a
u
l
t
O
f
f
G
N
D
2
.
.
2
4
V
D
e
f
a
u
l
t
O
n
G
N
D
L
i
n
ef
u
s
e
T10
L
2
5
0
V
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