AUDIO SIGNAL CABLES
When installing the audio cables between the RCA outputs of the headunit and the RCA inputs of the amplifier,
the audio and power supply cables should, if possible, not be routed along the same side of the vehicle. We
recommend a separated installation, e.g. routing the power cable through the cable channel on the left side
and the audio cables through the cable channel of the vehicle on the right side or vice versa. This prevents
interferences due to crosstalk into the audio signal.
SIGNAL OUTPUTS TO CONNECT ADDITIONAL AMPLIFIERS
The input signal on the INPUT jacks (Fig. 1,2) will be routed in stereo to the output jacks OUTPUT (Fig. 1,1).
Thus the OUTPUT jack allows the connection of a additional amplifier.
OPERATING ELEMENTS
INPUT SENSITIVITY
Turn the GAIN (Fig. 1,3) controller of the amplifier to the MIN position. Then turn the volume controller of the
headunit to 80 - 90% of its full setting. Now turn GAIN clockwise until you hear some distortion. Then turn back
the GAIN slightly until you hear a cleaner sound.
VARIABLE SUBSONIC FILTER
With the SUB SONIC controller (Fig. 1,5) you can adjust the lower cross-over frequency, to filter the very low
frequencies to relieve the subwoofer or to generate a bandpass signal. If you don't want to use this function,
turn the controller (Fig. 1,5) to the very left to the 10 Hz position.
NOTE: The adjusted value of the SUB SONIC (Fig. 1,5) should not be higher than the adjusted value of the
LPF controller (Fig. 1,6). Otherwise no sound will be hearable.
VARIABLE LOW PASS FILTER
Set the desired cross-over frequency by using the controller LPF (Fig. 1,6). Thus to that only the frequencies
below the chosen cross-over frequency will be amplified and the subwoofer plays more precised and efficient.
PHASE SHIFT SWITCH
The PHASE SHIFT switch (Fig. 1,4) allows to set the phase between 0° or 180° to match the run time of the
output signal with the vehicle's interior acoustic.
VARIABLE BASS BOOST
With the bass boost controller (Fig.1,7) you are able to adjust the bass level from 0 - 12 dB.
Attention: Use the BASS BOOST wisely!
BASS LEVEL REMOTE CONTROLLER
With the included bass level cable remote controller you are able to adjust the bass level e.g. out of the driver's
seat.
PROTECTION CIRCUIT
The POWER-LED (Fig. 1,9) lits up, if the amplifier is in operation.
The PROTECT-LED (Fig. 1,9) 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 events, the internal built-in protection circuit shuts
down the amplifier automatically. The amplifier should work again properly after you have solved the problems.
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