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THs 6902
USA
general
Please read these operating instructions be-
fore using the equipment for the first time.
We provide a manufacturer guarantee for our prod-
ucts bought within the United States of Ameri-
ka. The warranty terms can be called up under
www.blaupunktusa.com or requested directly from:
Blaupunkt USA
2800 South 25th Av.
Broadview, IL 60155
PH: 800-950-2528
FX: 708-865-5296
EM: blau.tech.support@us.bosch.com
Safety notes
Installation and installation instructions
Disconnect the negative terminal of the battery
before carrying out installation and connection
work.
Observe the vehicle manufacturer's safety in-
structions (regarding airbags, alarm systems,
trip computers, vehicle immobilisers).
Prior to drilling the mounting holes, make sure that no cables
and parts of the vehicle will be damaged.
Leave ample clearance between the cables and other har-
nesses. Use the enclosed cable ducts at sharp-edged holes.
Note:
We recommend that you operate the THs 6902 in conjunction
with our TH series amplifiers.
The THs 6902 can be operated in normal as well as in bridged
mode (for further details, please refer to the operating in-
structions that came with the amplifier). In any case, please
observe the RMS output power of your amplifier. It must not
exceed the RMS power of the THs 6902. Non-compliance with
this can cause damage to the product in the long term.
Setting up the subwoofer tube
In order to achieve a balanced sound, we recommend that you
configure the amplifier as follows.
1. First set the volume control to minimum and the crossover
control to its middle position.
2. Now play some music on your car sound system that you
are very familiar with and that contains some low bass
(e.g. pop music). Now slowly increase the volume of the
subwoofer until you feel that the sound of the music is well
balanced, i.e. the bass is neither too weak nor overpower-
ing.
3. Now listen to the relationship between deep male voices
and the upper bass and also take note of the relationship
between the upper bass (kick bass) and the lower bass.
The bass should ideally sound crisp and have a clear low
1
bass component, and male voices should neither sound
too weak nor should they billow out. If you are happy with
the sound then you are already finished with the setup
process. If not, continue as described in points 4 and 5.
4. If male voices seem to billow out or the low bass is too
weak, you should turn the crossover control slightly to-
wards minimum and then resume making your adjust-
ments as described in point 2 onwards.
5. If the bass sounds low but dirty and booming or the male
voices sound too weak, you should turn the crossover con-
trol slightly towards maximum. Furthermore, you should
set the phase control (if present) so that the upper bass
sounds as powerful as possible. Next, resume making your
adjustments as described in point 2 onwards.
installation and connecting instructions
Warning! Accident risk!
Do not mount the THs 6902 on the rear shelf,
rear seat or at any position which ist open to-
wards the front. Blaupunkt recommends the
installation in the spare wheel well.
Use suitable threaded rods or ratchet straps
to provide a secure support (see Fig. 1).
Recycling and disposal
To dispose of the product, please use the available
waste return and collection systems.
Subject to changes!
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