Blaupunkt TSA 1300 Guide De Montage Et D'utilisation page 11

LP / HP / FLAT switch
Before installing, adjust the X-OVER switch
on the power amplifier to activate the low-
pass filter (LP) or full-range (FLAT) setting.
If you select the FLAT position, the full fre-
quency response of the amplifier will be
used.
Using the integrated crossovers is particu-
larly useful in the case of multi-channel
sound systems with a separate subwoofer.
In order to obtain the best sound when a
subwoofer is connected, the subwoofer must
be separated as far as the frequencies it re-
ceives are concerned, i.e. it must only be
fed with low frequencies (bass).
To ensure that this is the case, select LP and
use the crossover frequency control to ad-
just the upper frequency to between 40 Hz
and 300 Hz. This ensures that every sub-
woofer is optimally separated as far as the
frequencies it receives are concerned.
If you want to precisely optimise the acous-
tic settings of the crossover, we recommend
you obtain advice from a Blaupunkt dealer.
It is very important that you take into ac-
count the specifications of the loud-
speakers being used whilst you are ad-
justing the crossover.
Crossover frequency control
(LP FREQ)
If you have activated the crossover (LP) by
adjusting the position of the X-OVER switch,
you can then use the control to adjust the
crossover frequency of the filter to a setting
anywhere between 40 Hz and 300 Hz. This
control has no function in full-range mode.
Settings for a subwoofer
In order to obtain the best sound when a
subwoofer is connected, the subwoofer must
be separated as far as the frequencies it re-
ceives are concerned, i.e. it must only be
fed with low frequencies (bass).
1. Firstly, turn down the GAIN control on the
amplifier to minimum and set the LP fre-
quency control to its centre 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 by turning the GAIN
control on the amplifier in a clockwise
direction until you feel that the sound of
the music is well balanced, i.e. the bass
is neither too weak nor overpowering.
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 bass component,
and male voices should neither sound too
weak nor should they billow out. You can
stop making adjustments if you are hap-
py with the sound. If not, move on to steps
4 and 5.
4. If male voices seem to billow out or the
low bass is too weak, you should turn the
LP frequency control slightly towards
minimum and then continue making your
adjustments as described in point 2 on-
wards.
5. If the bass sounds deep but dirty and
booming or the male voices sound too
weak, you should turn the LP frequency
control slightly towards maximum. Next,
continue making your adjustments as de-
scribed in point 2 onwards.
TSA 1300
11