Operating Elements; Protection Circuit - Hifonics nemesis Serie Manual De Uso

SUBWOOFER CONNECTIONS
- The total loudspeaker impedance must not be lower than 1 ohm.
- Never connect loudspeaker cables with the ground of the chassis or the +12 V supply voltage.
If the amplifier is operated with a too low impedance or incorrectly used, the entire sound system
may be damaged. This means a warranty void in such cases.
SIGNAL OUTPUTS TO CONNECT ADDITIONAL AMPLIFIERS
The input signal on the LINE INPUT jacks (Fig. 1,10) will be routed in stereo to the output jacks LINE
OUT (Fig. 1, 9). Hence, the LINE OUT jack allows the connection of an additional amplifier.

OPERATING ELEMENTS

INPUT SENSITIVITY
Turn the input level control (LEVEL INPUT, Fig. 1, 4) on the amplifier to the MIN. position. Turn then
the volume control of the headunit to 80% - 90% of its maximum volume. Now turn slowly the input
level control on the amplifier (LEVEL INPUT, Fig. 1, 4) in a clockwise direction until you hear some
distortion, then turn back slightly until the distortion is not audible anymore.
VARIABLE LOWPASS FILTER
Set the desired cross-over frequency by using the controller (LOW PASS, Fig. 1, 7). Thus to that only
the frequencies below the chosen cross-over frequency will be amplified and the subwoofer plays more
precised and efficient.
VARIABLE SUBSONIC FILTER
The subsonic filter is suited to filter the lower frequencies out from the audio signal to avoid unwanted
hum noises from the subwoofer. Set the desired crossover frequency of the subsonic filter by using
the controller (SUB SONIC, Fig. 1, 8). Hence, only the frequencies above the chosen crossover frequency
will be amplified and the subwoofer plays more precised and efficient.
VARIABLE BASS BOOST
By using the controller (BASS BOOST, Fig.1, 5) you are able to increase the bass level. The range is
between 0 and 12dB.
Note: Use the bass boost wisely. A too high bass boost could permanently damage the speakers.
VARIABLE PHASE CONTROLLER
The controller (PHASE, Fig. 1, 6) allows to set the phase between 0° or 180° to match the run time of
the output signal with the vehicle's interior acoustic.

PROTECTION CIRCUIT

The LED (POWER, fig. 1, 1) lits up, if the amplifier is in operation.
The LED (PROTECT, fig. 1, 1) lits up, when the amplifier is overheated, or a short circuit occurs resp.
a too low impedance load is connected to the speaker outputs. If this happens, the internal built-in
protection circuit shuts down the amplifier automatically. The amplifier should work again properly after
you have solved the problems.
ENG
10