Installation Instructions

GTA 11250 DSP
6
DSP sound settings
The following options are available to optimize the sound
for the use of a subwoofer:
– BASS BOOST control
The BASS BOOST control is used to adjust the bass re-
sponse of the ampli er. The adjustment range is from
0dB to +12 dB.
– X-OVER control
For the GTA 11250 DSP, the type of frequency crossover
("Low-Pass") can be adjusted. Select the cut-o frequency
up to which higher frequencies should be blocked. Only
frequencies that are below the cut-off frequency are
passed on to the loudspeakers.
Example:
At a setting of 80 Hz, the ampli er has a frequency range
of 10 Hz to 80 Hz.
– SUBSONIC control
To avoid interferences from extremely low frequencies,
you can use the subsonic  lter to limit the low-frequency
response of the device. The setting of the subsonic  lter
suppresses all frequencies below the de ned frequency.
Example:
At a setting of 40 Hz, the frequency range from 0 Hz to
40Hz is being suppressed.
– PHASE control
This control allows the step less change of the phase posi-
tion of the subwoofer from 0° to 180°. It is used for the
 ne tuning with the other connected loudspeakers and if
set correctly, it can prevent any possibly occurring mutual
cancellation of low frequencies within the audio system.
– GAIN control
The GAIN control is used to adjust the input sensitivity
of the power ampli er to the output voltage of your car
sound system preampli er output. The adjustment range
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.
The GAIN control can also be operated via the enclosed
cable remote control. For this purpose, the remote control
must be connected to the REMOTE socket. As long as the
remote control is connected, changes made with the GAIN
control of the GTA 11250 DSP have no e ect.
A few important explanations in this context:
By turning the GAIN control clockwise, the input sensitivity
of the ampli er and, therefore, also the volume increases.
However, this is not a volume control. In the end position,
it is not possible to achieve a higher ampli er output, even
if it sounds like that at  rst. The system merely increases
the volume faster if the volume control of the car sound
system is turned up.
Power-on indicator (PWR / PRO)
Green LED:
Output stage on, regular operating status.
Red LED:
Output stage is electronically switched o due to an error.
Technical data
Max power 1 x 1250 W / 4 Ω
Fig. 5
Max power 1 x 2500 W / 2 Ω
RMS power 1 x 500 W / 4 Ω
RMS power 1 x 1000 W / 2 Ω
Frequency response 10 Hz - 200 Hz
Signal-to-noise ratio > 95 dB @ RMS power
Signal-to-noise ratio > 75 dB @ 1 W / 1 kHz
Distortion factor (RMS) < 0.15 %
Stability 2 Ω / 4 Ω
Input sensitivity 0.2 V - 5 V
Low-pass  lter
(Low-Pass)
40 Hz - 200 Hz
Subsonic  lter 10 Hz - 80 Hz
Bass boost 0 dB - 12 dB @ 45 Hz
Phase position 0° - 180°
Dimensions
W x H x D (mm)
W x H x D (")
261 x 54 x 198
10.3 x 2.1 x 7.8
Recycling and disposal
Please use the return and collection systems avail-
able to dispose of the product.
Subject to changes.
FRANÇAIS
Garantie
Notre garantie constructeur s'étend à tous nos produits ache-
tés au sein de l'Union Européenne. Pour les appareils vendus
en dehors de l'Union européenne, les conditions de garantie
applicables sont celles dé nies par notre représentant agréé
dans le pays. Les conditions de garantie sont disponibles sur
le site www.blaupunkt.com.
Recommandation
Les performances d'un ampli cateur ne seront jamais meil-
leures que son installation ne le permet. Une installation
correcte augmente les performances d'ensemble de votre
système audio. Vous devriez con er le montage de l'ampli-
 cateur GTA à un spécialiste. Si vous souhaitez cependant
effectuer vous-même ce travail, lisez soigneusement la
présente Notice de montage et accordez-vous su samment
de temps pour le montage.
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