Manual ESX SL300A (page 9 of 20) (English, German, French, Italian, Spanish)

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LOW LEVEL INPUTS (VIA RCA PREAMP OUTPUTS)

The low level inputs LOW IN are used to drive the amplier via the preamplier outputs (RCA outputs) from

the head unit (car radio).

AUTO TURN ON

Slide the AUTO TURN ON switch to ON position. The amplier detects now a voltage rise over the connected

input signal 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

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.

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-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.

CAUTION: Never use the high level inputs and the RCA inputs at the same time. This may damage the

device seriously.

INPUT SENSITIVITY

Turn the INPUT LEVEL controller of the amplier 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.

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 amplied and the subwoofer plays more precisely and efcient.

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 lter frequency from 100 Hz to 300 Hz.

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.

HPF OUT

100 Hz / 300 Hz

Loudspeaker 1

Mono / 4 - 8 Ω

Loudspeaker 2

Mono / 4 - 8 Ω

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ESX SL300A Manual

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