Input Sensitivity - ESX SIGNUM SL300A Mode D'emploi

LOW LEVEL INPUTS (VIA RCA PREAMP OUTPUTS)
The low level inputs LOW IN are used to drive the amplifier via the preamplifier outputs (RCA outputs) from
the head unit (car radio).
HIGH LEVEL INPUTS (VIA SPEAKER OUTPUTS)
The high level inputs under HIGH IN are suitable to connect the device input with speaker wires, if your head
unit is not equipped with pre-amplifier 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-
fier. Then connect the each matching loudspeaker cable with the cables of the included High Level Input jack.
CAUTION: Never use the high level inputs and the RCA inputs at the same time. This may damage the
device seriously.
AUTO TURN ON
Slide the AUTO TURN ON switch to ON position. The amplifier detects now a voltage rise over the connected
input signal when the head unit will be switched on. Hence, the amplifier will also be turned on. As soon as the
head unit will be turned off, the amplifier turns also automatically off. In this case the turn-on connection REM
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
working.

INPUT SENSITIVITY

Turn the INPUT LEVEL controller of the amplifier to the MIN position. Then turn the volume controller of the
head unit to 80 - 90% of its full setting. Now turn INPUT LEVEL clockwise until you hear some distortion. Then
turn back INPUT LEVEL slightly until you hear a cleaner sound.
PHASE SHIFT
The PHASE switch allows to switch the phase from 0° to 180° to match the output signal with the vehicle's
interior acoustic.
VARIABLE LOW PASS FILTER
Set the desired crossover frequency by using the controller LOW PASS. Thus to that only the frequencies
below the chosen crossover frequency will be amplified and the subwoofer plays more precisely and efficient.
LOUDSPEAKER OUTPUTS (OPTIONAL)
Connect two speakers to the speaker outputs to amplify each with 35 watts RMS. The HPF OUT switch can set
the high-pass filter frequency from 100 Hz to 300 Hz.
HPF OUT
100 Hz / 300 Hz
Loudspeaker 1
Mono / 4 - 8 Ω
Loudspeaker 2
Mono / 4 - 8 Ω
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