VARIABLE BASS BOOST
By using the BOOST controller [ 10 ] you are able to increase the bass enhancement from 0 to 12 dB. ATTEN-
LOW LEVEL
TION: Use the BASS BOOST wisely!
HI LEVEL INPUT
R–
R+
L–
L+
REM
+12V
+12V
GND
GND
PHASE SWITCH
BASS LEVEL
POWER INPUT
INPUT
L
The PHASE switch [ 11 ] allows to switch the phase from 0° to 180° to match the output signal with the vehicle's
interior acoustic.
R
MIN
CONTROLLER
VARIABLE LOW PASS FILTER
Set the desired crossover frequency by using the controller LPF [ 12 ]. Thus to that only the frequencies below
the chosen crossover frequency will be amplified and the subwoofer plays more precisely and efficient.
LOW LEVEL
BASS LEVEL
R+
L
L+
REM
+12V
R
GND
CONTROLLER
BASS LEVEL CONTROLLER
INPUT
With the included bass level cable remote controller [ 13 ] allows to adjust the bass level e.g. out of the driver's
seat. Connect the remote controller and the BASS LEVEL CONTROLLER terminal [ 14 ] with the enclosed
cable.
13
PROTECTION CIRCUIT
The PROTECT LED [ 15 ] lights up red, when the amplifier is overheated, or a short circuit occurs respective
a too low impedance load is connected to the speaker outputs. If this events, the internal built-in protection
circuit shuts down the amplifier automatically. The amplifier should work again properly after you have solved
the problems.
The POWER LED [ 16 ] lights up green, if the amplifier is in operation.
BASS LEVEL
LEVEL
MIN
MAX
CONTROLLER
AC TI VE SUBWOO FE R SYS TEM
100 WATTS RMS / 200 WAT TS MAX.
10
BASS LEVEL
L
10
R
MIN
CONTROLLER
MRX168A
LEVEL
BOOST
MAX
0dB
+12dB
11
50Hz
AC TI VE SUB WO OFER SY STEM
100 WATTS RMS / 200 WAT TS MAX.
MRX168A
LEVEL
12
MIN
MAX
0dB
AC TI VE S UBWOOFE R S YS TEM
100 WATTS RMS / 200 WAT TS MAX.
BASS LEVEL
POWER
MIN
MAX
AUTO TURN ON
MRX168A
15
BOOST
LPF
16
0dB
+12dB
50Hz
150Hz
MRX168A
LEVEL
BOOST
MAX
0dB
+12dB
50Hz
AUTO TURN ON
ACTI VE SUB WOOFE R SY S TEM
100 WATTS RMS / 200 WAT TS MAX.
LPF
ON
OFF
PHASE
150Hz
180°
0°
AUTO TURN ON
BOOST
LPF
+12dB
50Hz
150Hz
HI LEVEL INPUT
FUSE
R–
R+
L–
L+
REM
+12V
+12V
GND
GND
POWER INPUT
PROTECT
ON
OFF
PHASE
POWER
180°
0°
AUTO TURN ON
LPF
ON
OFF
PHASE
150Hz
180°
0°
PROTECT
POWER
PROTECT
ON
OFF
PHASE
POWER
180°
0°
LOW LEVEL
BASS LEVEL
L
R
CONTROLLER
INPUT
PROTECT
POWER
MRX168A
LEVEL
BOOST
LPF
14
MIN
MAX
0dB
+12dB
50Hz
150Hz
A CTIV E SUBWOOFE R SYSTEM
100 WATTS RMS / 200 WAT TS MAX.
AUTO TURN ON
PR
ON
OFF
PHASE
P
180°
0°