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ESX Q202A Manual

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10
AUTO TURN ON
Push the AUTO TURN ON switch (Fig. 1, 10) to ON position. The amplier detects now a voltage rise (6 Volts)
with a so called ”DC Offset” over the connected input signal on the HIGH LEVEL INPUT (Fig. 1, 8) when the
head unit will be switched on. Hence, the amplier will also be turned on. As soon as the head unit will be turned
off, the amplier turns also automatically off. In this case the turn-on connection (REM, Fig. 1, 11) is not needed.
NOTE: The Auto Turn On function usually works with 90% of all head units, because they are equipped with
”High Power”-outputs. Only with a few older and still existing head units the Auto Turn On function is not wor-
king.
INPUT SENSITIVITY
OPERATING ELEMENTS
The input sensitivity can be adjusted to any head unit. Turn the volume control of your head unit to the center
medium position and then adjust the input level controls (Fig. 1,5) until you have an average medium level. This
setting usually provides sufcient power reserves at optimum weighted noise voltage.
HIGH LEVEL INPUT
The HIGH LEVEL INPUT (Fig. 1, 7) is suitable to connect the device input with speaker wires, if your head
unit is not equipped with pre-amplier RCA outputs. Extend therefor every regarding speaker cable from your
head unit with appropriate speaker cables from your car audio retailer to the mounting location of the amplier.
Then connect the each matching loudspeaker cable with the cables of the included HIGH LEVEL INPUT jack
like described below.
CAUTION: Never use the HIGH LEVEL INPUT and the RCA inputs at the same time. This may damage the
device seriously. The loudspeaker cables of the HIGH LEVEL INPUT must have no contact to the ground
(GND) by any means.
grey = right - positive
grey/white = right - negative
black/white = left - negative
white = left - positive
VARIABLELowpassFILTER
Set the desired crossover frequency of the low pass lter by using the controller (Fig. 1, 3). Thus to that only the
frequencies below the chosen crossover frequency will be amplied and the subwoofer plays more precised
and efcient.
VARIABLE BASS BOOST
PHASE SWITCH
By using the boost controller (Fig.1, 4) you are able to increase the bass boost level from 0 dB to 18 dB.
CAUTION: Please use the bass boost with care.
The PHASE-switch (Fig. 1, 2) allows to set the phase between 0° or 180° to match the run time of the output
signal with the vehicle’s interior acoustic.
POWER INPUTS
REMOTE
LOW
PASS
BASS
BOOST
LEVEL
50Hz 150Hz MIN MAX0dB +18dB
PHASE
AUTO TURN ON
REM
GND
+12V
PROTECT
POWER
LINE IN
ON
HIGH LEVEL INPUT
LOW LEVEL INPUT
OFF
180°
0°
FUSE
R
R
L
L
R
L
Q202A
+ –
+ –
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