Blaupunkt GTA 270 DSP User manual

Amplifier
GTA 270 DSP
1 051 110 425
www.blaupunkt.com

GTA270
DSP
DEUTSCH...................................................... 3
Einbau I
AnschiLISS
.............................................................
42
ENGLISH ....................................................... 6
Installation
I
connection
..................................................42
FRANc;AIS .................................................... 8
Montage
I
Raccordement
...............................................42
ESPANOL .................................................... 12
lnstalaci6n
I
Conexi6n
......................................................42
PORTUGUES .............................................. 15
Montagem
I Ligac;ao.........................................................42
ITALIANO ................................................... 18
Montaggio
I
Collegamento
...........................................42
POLSKI........................................................
21
Montaz
I Podtqczenie .......................................................42
CES
KY
.........................................................24
Montaz
I
Pripojenf
..............................................................
42
PYCCKII1111
................................................... 26
YcraHOBKa
I no.QKnt04eHllle.............................................42
ROMANA.................................................... 30
Montare
I Racordare .........................................................42
6bn
rAPCKI/1
............................................... 33
MoHra>K I Csbp3BaHe .......................................................
42
SRPSKI
........................................................ 36
Ugradnja
I Prikljucak
.........................................................42
SLOVENSCINA ........................................... 39
Vgradnja
I
Priklop
...............................................................42
2

GTA270
DSP
ENGLISH
Warranty
We
provide a manufacturer's warrantyfor products
bought
within
the European Union.
For
devices purchased outside
the European Union, the warranty terms issued by
our
re-
spective responsible domesticagency
are
valid.The warranty
terms can be called
up
from
www
.blaupunkt.com.
Recommendation
The performance
of
an
amplifier can only be
as
good
as
its installation. A correct installation increases the overall
performance
of
your car sound system. The
GTA
amplifier
should be installed byatrained person.lfyou would
to
install
it
yourself, please read these installation instructions very
carefullyand allowyourselfsufficienttimeforthe installation.
In
conclusion,allow
us
afewwords aboutthetopic
of
health
protection:
Duringthe playback
of
music in yourvehicle, please consider
that
continuous sound-pressure levels above 100
dB
can
lead
to
permanent damages
to
the human ear and even
to
loss
of
hearing. Using today's high-performance systems
and loudspeaker configurations allows for reaching sound-
pressure levels above
130
dB.
Safety notes
Please
observe the following safety notes during the instal-
lation and connection.
-Disconnect
the
negativepole
of
thebattery! Observe the
safety notes
of
the vehicle manufacturer.
When you drill holes, ensure thatyou do
not
damageany
vehicle components.
The
cross
section
of
the plus and minus cable may
not
be
less
than 6
mm
2•
Use
cable glands for holes
with
sharp edges.
-An incorrect installation can result in malfunctions
of
the electronic vehicle systems or your car sound system.
Installation and connection instructions
With respect
to
accident safety, the
GTA
270
DSP
must be
secured in a professional way.
When selecting theinstallation location,selectadrylocation
that
offers sufficient air circulation for cooling the amplifier.
The
GTA
270
DSP
must
not
be installed on rear shelves, rear
seats or other locations that are open
to
the front.
The installation surface must be suitable
to
accept the
ac-
companying screws and provide afirm support.
The amplifierpowercable mustbe fitted with afuse nomore
than
30
em
from the battery
to
protectthevehicle batteryin
case
of
ashortcircuit between poweramplifier and battery.
The fuse
of
the amplifier protects onlythe amplifier,
not
the
vehicle battery.
Only loudspeakers
with
2 - 4 n impedance may be used
(see
table or installation drawings). Observe the maximum
power handling capacity (music output). Do
not
connect
loudspeakers
to
earth,
use
onlythe referenced terminals.
6
Audio inputs
The preamplifier outputs are connected
to
the cinch
(RCA)
sockets via a shielded audio line
(see
Fig.
3).
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.
Integrate fuse (20
A)
The
fuse integrated
in
theamplifierprotectsthe
output
stage
and the entire electrical system in
case
of
amalfunction.
If
a
replacementfuse
is
used, neverbridgefuses or replace them
with
atype
with
higher current.
Connection examples
Connection
of
the voltage supply
..................................
Fig.
2
Audio inputs
........................................
..
.................................
Fig.
3
Loudspeaker connections
.................................................
Fig.
4-8
Remote control connection (optional equipment)
......
Fig.
9
I
~<>-
+12V I
Remote connection
of
the amplifier
with
switchable +
12
V
voltage source.
This allows theamplifier
to
be switched on and
off
usingthe
on/off-switch
of
the car sound system.
Loudspeaker connections
(Iftheamplifier
is
to
bejumpered,continue
with
the section
"Bridged loudspeaker connections" at this point).
As
with
every audio component, the correct polarisation
of
amplifierand loudspeakers
is
of
essentially importancefora
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.
Bridged loudspeaker connections
The
GTA
amplifier
can
also be bridged fora
mono
configura-
tion. This allows the amplifier
to
be used for one or several
subwoofers or a mid-range driver.
In
this configuration, the
amplifier combines the right and left channel
to
a single-
channel
output
(mono output).
Note:
The amplifier
can
add the right and left signal information
only
if
the right
as
well
as
the left cinch
(RCA)
connection
were carried out.
Caution:
In a bridge circuit, the amplifier load must be 4
n
or
higher. A lower load leads to an overheating or switch-
off
of
the amplifier and
can
cause permanent damages.

Subwoofer
connection
The
GTA
270
DSP
features three different options
of
con-
necting a subwoofer:
-An activesubwooferor
an
additionalamplifierare con-
nected
with
a cinch
(RCA)
cable
to
the
two
SUBWOOFER
OUTPUT
sockets
(see
Fig.
7).
The setting options
of
the
integrated
DSP
(Digital Sound Processor) can be used
in this
case.
A passive subwoofer
is
connected
to
the bridged loud-
speaker
output
(see
the
section "Bridged loudspeaker
connections").
To
be able
to
use
the setting options
of
the
integrated
DSP
(Digital Sound Processor),
the
two
INPUT
sockets must additionally be connected
with
a commer-
ciallyavailablecinch
(RCA)
cablewiththe
two
SUBWOOFER
OUTPUT
sockets
(see
Fig.
8).
A passive subwoofer
is
connected
to
the bridged loud-
speaker
output
(see
the section "Bridged loudspeaker
connections").The setting options
of
the integrated
DSP
(Digital Sound Processor) cannot be used in this
case.
DSP sound settings (FRONT)
Avariety
of
options
is
available
to
optimise
the
sound
of
the
connected loudspeakers:
-GAIN control (FRONT)
The
GAIN
control
is
used
to
adjust the
input
sensitivity
of
the
power amplifier
to
the
output
voltage
of
your car
sound system preamplifier
output.
The adjustmentrange
is
from
0.2
V
to
5
V.
If
a car sound system
of
a third party
manufacturer
is
connected, the
input
sensitivity must be
adjusted corresponding
to
the
manufacturer data.
A
few
important
explanations in this context:
By
turningthe
GAIN
control clockwise,the
input
~ensitivity
of
the
amplifierand, therefore, also thevolume mcreases.
However,this
is
not
avolumecontrol. In
the
end position,
it
is
not
possible
to
achieve ahigheramplifieroutput,even
if
it
sounds like
that
at first. The system merely increases
the
volume faster
if
the volume control
of
the
car sound
system
is
turned
up.
FULL/HI/LOW switch and X-OVER control (FRONT)
For
the
GTA
270
DSP,
the
type
of
frequency crossover
("Low-Pass"
or
"High-Pass") and
the
desired
cut-off
fre-
quencycan be adjusted forthe connected loudspeakers.
Selectthecut-offfrequency up
to
which lowerfrequencies
(high-pass)
or
higher frequencies (low-pass) should be
blocked. Only frequencies above
the
cut-off
frequency
(high-pass)
or
belowthe
cut-off
frequency (low-pass) are
passed on
to
the
loudspeakers.
The
cut-off
frequency
is
dependent upon
the
frequency
range
of
the loudspeakers
(see
recommended frequency
range
of
the
loudspeakers).
"High-Pass" (switch setting: HI)
With asetting
of80
Hz,
theamplifier
has
afrequency range
from 80
Hz
to
30,000
Hz.
"Low-Pass" (switch setting: LOW)
This control
is
active
if
the switch
is
in the
LOW
position,
and allows for setting the desired
entry
frequency.
Example:
At
a setting
of
80Hz, the amplifier
has
afrequency range
of
10
Hz
to
80
Hz.
GTA270
DSP
"Full Range" (switch setting: FULL)
In this switch setting,thefrequencycontrol
is
deactivated
and the entire frequency spectrum
is
being amplified.
-SUBSONIC control (FRONT)
To
avoid interferences from extremely
low
frequencies,
you can
use
the subsonic filter
to
limit
the
low-frequency
response
of
the device. The setting
of
the subsonic filter
suppresses all frequencies below the defined frequency.
Example:
At a setting
of
40
Hz,
the
frequency range from 0
Hz
to
40Hz
is
being suppressed.
DSP sound settings (SUBWOOFER)
The following options are available
to
optimise the sound
for the
use
of
a subwoofer:
-X-OVER control (SUBWOOFER)
For the
GTA
270
DSP,
the
type
of
frequency crossover
("Low-Pass")
can
be adjusted. Selectthecut-offfrequency
up
to
which higherfrequencies should be blocked. Only
frequencies
that
are·below
the
cut-off
frequency are
passed on
to
the loudspeakers.
Example:
At asetting
of
80Hz, the amplifier
has
afrequency range
of
10
Hz
to
80
Hz.
SUBSONIC control (SUBWOOFER)
To
avoid interferences from extremely
low
frequencies,
you can
use
the subsonic filter
to
limit
the
low-fre~uency
response
of
the device. The setting
of
the subsomc filter
suppresses all frequencies below the defined frequency.
Example:
At a setting
of
40
Hz,
the
frequency range from 0
Hz
to
40
Hz
is
being suppressed.
PHASE control (SUBWOOFER)
This control allowsthe step
less
change
of
the phase posi-
tion
of
the
subwoofer from
oo
to
180°.
It
is
used for the
fine
tuning
with
theotherconnected loudspeakers and
if
set correctly,
it
can preventany possiblyoccurring mutual
cancellation
of
low
frequencies
within
the
audio system.
FRONT COMPRESSOR
and
SUB
COMPRESSOR
switches
This function
is
used
to
protectthe connected loudspeakers
and subwoofer.
If
the switch
is
in the
ON
position, the out-
put
volume
is
reduced by 10
dB.
The
GTA
270
DSP
features
separate switches for the connected loudspeakers
(FRONT
COMPRESSOR)
and subwoofer
(SUB
COMPRESSOR).
FRONT dB/Oct and SUBWOOFER dB/Oct
switches
These switches are used
to
set
the
attenuation
of
the in-
stalled
filter
separately
for
the
connected loudspeakers
and subwoofer. A high value ensures a steep filter slope,
which translates
to
astrict separation between blocked and
forwarded frequencies. A
low
value ensures a soft separa-
tion, which translates
to
a gradual transition from blocked
to
forwarded frequencies. The settings
18,
24
or
48
dB
per
octave are available for attenuation.
Caution:
If
the
FRONT switch
is
set
to
FULL,
the
FRONT dB/Oct
switch
is
without
function.
7

GTA270DSP
Initial setup of the amplifier
We recommend the following sequence for the initial setup
of the amplifier:
1. Settings for the connected loudspeakers
2. Settings for the connected subwoofer
You should always proceed in the same way, e.g. setting the
treble first, then
the bass.
Setting options on the remote control
(optional equipment)
For the GTA 270 DSP amplifier, the GTA RC01 cable remote
control
(1 101 210 001 001) is available as an accessory. It
can be used
to perform the following settings:
- DELAY control
It allows setting a sound delay for the left loudspeaker.
The control
has 2561evels, each of the levels corresponds
to a distance of 7 mm.The maximum adjustable value is
approx. 1.8 metres.
- LEVEL control and 88/SHS switch
With these switches, you can individuallyadjustthe value
for
the bass increase. Two different types are available.
BB (Bass Boost): A value from 0 to 15 dB can be set at a
frequency
of 45 Hz.
SHS (Sub HarmonicSynthesizer):This setting is particularly
suited for music
with only minor bass portions.
Power-on indicator (PWR I PRO)
Green LED:
Output stage on, regular operating status.
Red LED:
Output stage is electronically switched off due to an error.
Technical data
Stereo mode 2 X
140W I 40 Fig.4,5
Max power
Mono mode 1
x420W I 40 Fig. 6
Max power
Stereo mode
2x200W 120
Fig.4,5
Max power
Stereo mode 2 X
70W I 40 Fig.4,5
RMS power
Mono mode 1X
200W I 40 Fig. 6
RMS power
Stereo mode 2 X
100W I 2 0 Fig.4,5
RMS power
Frequency response 10 Hz- 30,000 Hz
Signal-to-noise ratio >
92 dB@ RMS power
Signal-to-noise ratio >
75 dB@ 1 wl 1 kHz
Distortion factor (RMS) < 0.05
o/o
Stability 2 0
(4 0 in bridge mode)
8
Input sensitivity
0.2 v- 5v
Low-pass filter
50 Hz- 5,000 Hz
(Low-Pass)
High-pass filter
50 Hz- 5,000 Hz
(High-Pass)
Subsonic filter 0 Hz- 80Hz
Compressor limiter 10 dB
Dimensions
Wx Hx D (mm) 263 X 54 X 198
W x H x D
(")
10.4 X 2.1 X 7.8
Recycling and disposal
~ Please use the return and collection systems avail-
A able to dispose of the product.
-
Subject to changes.
FRANc;AIS
Garantie
Notregarantieconstructeurs'etend a to us nos produitsache-
tes
au sein de I' Union Europeenne. Pour les appareils vend us
en dehorsde I' Union europeenne,les conditionsdegarantie
applicables sontcelles definies par notre representant agree
dans le
pays. Les conditions degarantie sont disponibles sur
le site www.blaupunkt.com.
Recommandation
Les performances d'un amplificateur ne serontjamais meil-
leures que son installation ne le permet. Une installation
correcte augmente
les performances d'ensemble de votre
systeme audio.
Vous devriez confier le montage de l'ampli-
ficateur
GTA aun specialiste. Si vous souhaitez cependant
effectuer vous-meme ce travail, lisez soigneusement Ia
presente Noticede montageetaccordez-vous suffisamment
de temps
pour le montage.
Permettez-nous enfin de vous dire quelques mots sur
Ia
protection en matiere de sante :
N'oubliez pas que lorsque vous ecoutez de Ia musique
dans votre vehicule, un niveau de pression sonore perma-
nent superieure a100 dB peut entralner des dommages
irreversibles
au niveau de l'ou"le, voire une perte complete
de celle-ci.
Les systemes haute puissance modernes et les
configurations etablies avec des haut-parleurs de haute
qualite permettent d'atteindre des niveaux de pression
sonore superieurs a130
dB.

GTA270DSP
Anschluss •Connection • Raccordement • Conexion •
Liga~ao
•Collegamento • Podlctczenie.
Pripojeni.
noAKniO'IeHMe • Racordare. CBbp3BaHe •
Prikljucak.
Priklop
Fig.1
Fig. 2
/
(±r-
BRIDGE
MODE
--0
$L8
$R8
li==~==~
SPEAKERS
Fig. 3
FRONT
~
SUBSONIC
dB/Oct
X-OVER
::~::
LLl
~~::
18
24
48
0
80Hz
50Hz
5kHz
REMOTE
X-OVER
•
~"'
dB/Ocl
::~::
PWRIPRO
OfF
LL)
40Hz
200Hz
FRO!flCOMPRESSOR
SUB
COMPRESSOR
18
24
48
42 I
+12V
,.,..
.
~
20A
SUPPLY
REMOTE
GROUND
~
fa
1--
fa
~
-
jj
-
r--1-
=
=
===
=
FUSE
--
-
G
-
ROUND
~-=1=-
I
+12V
-o......._
+
12V
FUSE
,.c.
~
~
GAIN
DiD
~~;
~
FULL
HI
LOW
5V
200mV
SUBSONIC
PHASE
~
::~::
::~::
R
0
80Hz
0
180
INPUT
OUTPUT
SUBWOOFER

GTA270
DSP
Anschluss• Connection•Raccordement•Conexion•
Liga~ao
•Collegamento• Podlctczenie •
Pripojeni.
noAKniO'IeHMe • Racordare • CBbp3BaHe •
Prikljucak.
Priklop
+12V
tr'.
-4:-
SUPPL
Y
REMOTE
GROUND
[a
t---
[a
~
[I]
~
[I]
-
min. 2 Ohm min.
20hm
Fig. 5
+12V
"".
-4:-
@--BRIDGE
MODE
-0
20A
SUPPLY
REMOTE
GROUND
(±)L8
@R8
~
[a
-
[a
~
t=~==J
[I]
~
[I]
-
PEAKER
FUSE
--
-
<±>
e
<±>
e
-
min.
2x2
Ohm
+12V
tr'
•
-4:-
SUPPL
Y
REMOTE
GROUND
[a
t---
[a
EB
[I]
~
[I]
1---
min.
40hm
I 43

GTA270DSP
Anschluss • Connection • Raccordement • Conexion •
Liga~ao
•Collegamento • Podlctczenie •
Pripojeni.
noAKniOI.IeHMe
• Racordare. Cabp3BaHe.
Prikljucak.
Priklop
Fig.
7
FRONT
[®]
SUBSONIC
dB/Oct
X-OVER
GAIN
=:0.::
0[]
=:0.::
DiiiJ
=:0.::
18
24
48
FULL
HI
LOW
0
80Hz
50Hz
5kHz
5V
200mV
REMOTE
X-OVER
SUBSONIC
PHASE
~
•
~"'
dll/Oc1
~0.;
=:0.::
=:0.::
PWRIPRO
OFF
O[J
fRONTCOMPRESSOR
SUBCOMPP.Essal18
24
48
40Hz
200Hz
0
80Hz
0
180
INPUT
OUTPUT
SUB
WOOFER
Fig.8
FRONT
[®]
SUBSONIC
dB/Oct
X-OVER
GAIN
=:0.::
0[]
~ra;
DiiiJ
~ra;
18
24
48
FULL
HI
LOW
0
80Hz
50Hz
5kHz
5V
200mV
REMOTE
X-OVER
SUBSONIC
PHASE
0
~"
dBIOcl
=:0.::
~ra:,
~ra;
R
PWRIPRO
OFF
O[J
fRONT
COMPRESSOR
SUBCCMPRESSOR
18
24
48
40Hz
200Hz
0
80Hz
0
180
SUBWOOFER
44

GTA270DSP
Anschluss • Connection • Raccordement •Conexion •
Liga~ao
•Collegamento • Podlctczenie •
Pripojeni.
noAKniO"'eHL1e. Racordare. (B'bp3BaHe •
Prikljucak.
Priklop
Fig.9
~
8
~
GTA
RC01
FRONT
[@
SUBSONIC
/~::
0
80Hz
dB/
[][]
18
2
Oct
X-OVER
GAIN
::~::
[][]
...
~
~
4
48
FUU
HI
LOW
~~::
50Hz
5kHz
5V
200mV
REMOTE
X-OVER
SUBSONIC
PHASE
~
~
Oct
~~::
::~::
~~;
4
48
40Hz
200Hz
0
80Hz
0
180
INPUT
OUTPUT
R
•
~~ON
dB/
PWRIPRO
OFF
[J[J
FRONT
COMPRESSOR
SUB
COMPRESSOR
18
2
SUBWOOFER
I
4s