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10
AUDIO SIGNAL CABLES
WheninstallingtheaudiocablesbetweentheRCAoutputsoftheheadunitandtheRCAinputsoftheamplier,
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.
INPUT SENSITIVITY
OPERATING ELEMENTS
TurntheGAINcontroller(Fig.1,7)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 GAIN clockwise until you hear some distortion. Then turn back
the GAIN (Fig. 1,7) slightly until you hear a cleaner sound.
VARIABLE HIGH PASS / SUBSONIC FILTER
WiththeHPF/SUBSONICcontroller(Fig.1,6)youcanadjustthelowercross-overfrequency,tolterout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. 1,6) to the very left to the 20 Hz position.
NOTE: The adjusted value of the HPF/SUB SONIC (Fig. 1,5) should not be higher than the adjusted value of
the LPF controller (Fig. 1,4). Otherwise no sound will be audible.
VARIABLE LOW PASS FILTER
Set the desired cross-over frequency by using the controller LPF (Fig. 1,4). Thus to that only the frequencies
belowthechosencross-overfrequencywillbeampliedandthesubwooferplaysmorepreciselyandefcient.
SIGNAL OUTPUTS FOR ADDITIONAL AMPLIFIERS
The input signal on the LINE INPUT jacks (Fig. 1,8) will be routed in stereo to the output jacks LINE OUTPUT
(Fig.1,9).ThustheLINEOUTPUTjackallowstheconnectionofaadditionalamplier.
X-OVER SWITCH
TheX-OVERswitchdeterminesthedesiredoperatingmodeoftheamplier.
LPF/BPF:Lowpasslter,thefrequencyrangeislimitedupwardly,adjustablebythecontrollerLPF(Fig.1,4).
The controller HPF/SUB SONIC (Fig. 1,6) acts in this mode as a subsonic lter and limits the frequency
downwards (bandpass function). NOTE: If this controller is turned to a higher value than the LPF controller, no
sound is audible.
HPF:Highpasslter,thefrequencyrangeislimiteddownwardly,adjustablebythecontrollerHPF/SUBSONIC
(Fig. 1,6).
FULL:Fullrangemode,theentirefrequencyrangeisamplied
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.
VARIABLE BASS EQ
With the BASS EQ controller (Fig. 1,3) you are able to adjust the bass level from 0 - 12 dB.
Attention: Use the BASS EQ wisely!
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