Input Sensitivity; Protection Circuit - Hifonics Zeus Série Mode D'emploi

INPUT SENSITIVITY

Turn the 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 LEVEL clockwise until you hear some distortion. Then turn back LEVEL
slightly until you hear a cleaner sound.
VARIABLE BASS BOOST
By using the BASS BOOST controller you are able to increase the bass enhancement from 0 to 12 dB.
ATTENTION: Use the BASS BOOST wisely!
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.
PHASE SWITCH
The PHASE switch allows to switch the phase from 0° to 180° to match the output signal with the vehicle's
interior acoustic.

PROTECTION CIRCUIT

The PWR LED lights up green, if the amplifier is in operation.
The PRO LED 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.
Troubleshooting
• Check all connections for defects or short circuits and correct them.
• Provide sufficient cooling in the event of overheating and reduce the volume.
LEVEL
MIN MAX
BASS BOOST
0dB 12dB
LOW PASS
50 Hz 150 Hz
PHASE
0°
180°
ZEUS ZRX111A
ACTIVE SUBWOOFER SYSTEM
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