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XLf 8A
A few important notes:
By turning the control clockwise, the input sensitivity of the
ampli er and, therefore, also the volume increases. However,
this is not a volume control; no further amplif ier 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.
CROSSOVER frequency control
The CROSSOVER control
allows setting the desired exit
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frequency band in this base, 20 Hz - 80 Hz is the ideal
frequency band.
Example:
At a setting of 150 Hz, the
ampli er
of 20 Hz to 150 Hz. We suggest a setting of 80 Hz.
Settings
The following control setting is recommended as basic
setting before putting the device into operation: Sensitiv-
ity (GAIN) Pos. to minimum, PHASE Pos. to 0°, x-over
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Pos. to approx. 80 Hz. Switch on the device and select a
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musical piece with distinctive bass playback.
Increase the volume of your car sound system to the desired
volume level. Now slowly increase the VOL control until
you can hear a clear
ampli cation
use the CROSSOVER control
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provides a well-contoured bass. You may have to alternately
optimise the sensitivity setting
The phase switch
must be set so that the bass is inte-
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grated into the acoustic pattern as best as possible and not
recognisable as an individual source.
Also check your settings of the XLf 8A with the bass con-
trol fully open and, if necessary, with activated loudness. An
overloading of the subwoofer box by selecting an excessive
ampli cation Pos. results in a distorted playback and can
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damage the loudspeaker.
Power-on indicator
(PRT/PWR)
Green LED:
Output stage on, regular operating status.
Red LED:
Output stage is electronically switched off due to an error.
Recycling and disposal
Please use the return and collection systems avail-
able to dispose of the product.
Subject to changes!
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has a frequency range
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4
of the bass level. Next,
to select a
lter
setting that
and the
lter setting
.
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Fig. 1:
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