GTA470
SF
When selecting the installation location, select a dry loca-
tion
that
offers
sufficient
air
circulation
for
cooling
the
amplifier.
The
GTA
470
SF
must
not
be installed on rear shelves, rear
seats
or other locations
that
are
open
to
the front.
The installation location must be suitable
to
accept the
ac-
companying screws and provide a firm support.
The amplifier power cable must be fitted
with
a fuse no more
than
30
em
from the battery
to
protect the vehicle battery in
case
of
a short circuit between power amplifier and battery.
The fuse
of
the amplifier protects only the amplifier,
not
the
vehicle battery.
Use
loudspeakers
with
2-
4 n impedance
(see
table or in-
stallation drawing). Observe the maximum power handling
capacity (music output). Do
not
connect loudspeakers
to
earth,
use
only the referenced terminals.
Amplifier
GTA
470
SF
The amplifier
is
suitable for connecting a car sound system
with
cinch connections.
For
the connection
to
car sound systems
with
ISO
connec-
tion,
use
Blaupunkt
ISO
cinch adapters
(7
607 893
093
or
7 607
855
094).
Application options and loudspeaker connection
Quadro mode
Max power
4x
140W
I
40
Fig.4, 5
Stereo mode
Max power
2x420W
I
40
Fig.
6
Quadro mode
Max power
4x
200W
I 2 0
Fig.
4,
5
Quadro mode
RMS
power
4x
70W
I 4 0
Fig.
4,
5
Stereo mode
RMS
power
2
X
200W
I 4 0
Fig.
6
Quadro mode
RMS
power
4
X
100W
I 2 0
Fig.
4,
5
Frequency response 1 0
Hz
- 30,000
Hz
Signal-to-noise ratio
> 92 dB@
RMS
power
Signal-to-noise ratio
>
75
dB@ 1
WI
1 kHz
Distortion factor (RMS)
< 0.05%
Stability 2 0
(4
0 in bridge mode)
Input sensitivity
0.1
-8
v
Low-pass filter
(Low
Pass)
50-250Hz
High-pass filter
(High
Pass)
80Hz
Bass
boost
0
/6/12dB
Dimensions
Wx
H x 0 (mm)
197
X
52
X 426
Wx
H x D (
11
)
7.8
X
2.1
X 1
6.8
46
1
Plus I minus connection
-
We
recommend a
minimum
cross section
of
6
mm
2
•
- Route commercially available plus cables
to
the battery
and connect via fuse holder.
-
Use
cable glands for holes
with
sharp edges.
- Securely fasten commercially available minus cables
to
a
noise-free earth
point
(chassis screw, chassis metal) (not
to
the minus pole
of
the battery).
- Scrap the contact surfaces
of
the earth
point
until they
are
bright
and grease
with
graphite grease.
Integrated
fuses (Fuse)
The fuses integrated in the amplifier
(Fuse)
protect the power
amplifier and
the
entire electrical system in
case
of
an
error.
If
a replacement fuse
is
used, never bridge fuses or replace
them
with
a
type
with
higher current.
Connection examples
Connection
of
the
voltage supply
...............................
Fig.
2
Connection
to
car sound system
with
cinch
output
.......................................................................
Fig.
3
Loudspeaker connections
.............................................
Fig.
4/5/6
I
-/o-
+12V I
Remote connection
of
the amplifier
with
switchable + 1 2 V
voltage source.
This allows the amplifier
to
be switched on and
off
using the
on/off-switch
of
the radio device.
Level control
The Level control
is
used
to
adjust the
input
sensitivity
of
the
power amplifier
to
the
output
voltage
of
your car sound
system preamplifier output.
The adjustment range
is
from
0.1
V
to
8
V.
If
a car sound system
of
a third party manufacturer
is
con-
nected, the
input
sensitivity must be adjusted corresponding
to
the
manufacturer data.
A few
important
explanations in this context:
By
turning
the
control clockwise, the
input
sensitivity
of
the
amplifier and, therefore, also the volume increases. However,
this
is
not
a
volume
control; no
further
amplifier
output
can
be achieved in the end position, even
if
it
may sound
like
that
at the beginning. The system merely increases the
volume faster
if
the
volume control
of
the car sound system
is
turned up.
Loudspeaker connections
(If the amplifier
is
to
be jumpered, continue
with
the
section
II
Bridged loudspeaker connections
II
at this point).
As
with
every audio component, the correct polarisation
of
amplifier and loudspeakers
is
of
essentially importance for a
good
bass
response.
For
this reason, ensure
that
the
positive
(+)connection
of
the amplifier
is
connected
with
the posi-
tive
connection(+)
of
the loudspeaker; the same applies
to
the negative
(-)
connections.
In
addition,
the
left amplifier
channel must be connected
with
the left loudspeaker and
the
right amplifier channel
with
the right loudspeaker.
To Next Page
Loading...
Need help?
General