10
OPERATING ELEMENTS
Turn the volume controller of your head unit to the center medium position and then turn up the INPUT LEVEL controller
( 14 )
until you have an average medium level without distortion. This setting usually provides sufficient power reserves at optimum
weighted signal-to-noise ratio.
INPUT LEVEL
Set the desired crossover frequency of the low pass filter by using the LOW PASS controller
( 12 )
. Hence, only the frequencies
below the chosen crossover frequency will be amplified and the subwoofer plays more precisely and efficient.
LOW PASS FILTER
By using the BASS BOOST controller
( 13 )
you are able to increase the bass boost level from 0 dB to 18 dB.
Caution:
Please use the bass boost with care.
BASS BOOST
Connect the included Bass Level Remote Controller at the REMOTE input
( 15 )
. This allows you to control the bass level f.e.
out of the driver’s seat.
The PHASE switch
( 11 )
allows you to set the phase between 0° or 180° to match the output signal with the vehicle’s interior
acoustic and the loudspeakers of the sound system.
BASS LEVEL REMOTE CONTROLLER
PHASE
REMOTE
LOW PASS
BASS BOOST INPUT LEVEL
FUSE
25A
50Hz 150Hz
0dB +18dB
MIN MAX
PHASE
AUTO TURN-ON
POWER
PROTECT
HI LEVEL INPUT
+L
L–
+R
R–
0°
180°
ON
OFF
POWER INPUTS
GND
REM
+12V
LOW LEVEL INPUT
LINE INPUTS
R
L
ACTIVE SUBWOOFER SYSTEM
Q 208A
14
12 13
11
15
BASS LEVEL
MIN
MAX
POWER
