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ENGLISH
FUNCTIONAL INSTRUCTIONS
14
The CH3/CH4 X-OVER switch selects the desired operating mode of channel 3/4:
FULL: Full-Range mode (the entire frequency range is amplied).
HP: High-Pass mode (frequency is limited downwards, adjustable by the HIGH PASS controller).
LP/BP: Low-Pass/Bandpass mode (frequency is limited upwards, adjustable by the LOW PASS controller). The HIGH PASS
controller then acts as a subsonic lter in this mode and limits the frequency downwards (bandpass function).
NOTE: If this is set higher than the LOW PASS, no sound is heard.
15
If your head unit does not have a turn-on signal (REM), you can use the automatic turn-on function of the amplier. This works
in two ways, which can be set at the AUTO TURN-ON switch:
DC: This method only works if you use the amplier’s HIGH LEVEL INPUT. The amplier then detects a voltage rise to 6 volts
when the head unit is turned on by a so-called “DC offset” and then turns on the amplier.
VOX: Select this method when using the INPUT RCA jacks. The amplier then detects a voltage increase in the incoming audio
signal when switching on the head unit via the attached RCA cable and then switches on the amplier.
Note: As soon as the head unit is switched off again, the amplier switches itself off.
The terminal for the amplier turn-on (page 15#2, REM IN/OUT) can now be used to supply additional ampliers with a turn-on
signal. Simply connect the REM terminals of the two ampliers and make sure that the other amplier is in “normal” turn-on
mode, which means that the AUTO TURN ON function is disabled.
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The REMOTE port is for connecting the cable of the included bass level remote controller. With this, the bass level can be e.g.
be adjusted from the driver’s seat. Only use the supplied bass remote controller and the associated cable. The bass level remote
controller only works in LP/BP mode (Low-Pass/Bandpass) on channel pair 3/4, in COPY mode under CH1/CH2 X-OVER also
on channel pair 1/2.
If your head unit does not have RCA preamp outputs, you can use the amplier’s HIGH LEVEL INPUT as the signal input. To do
this, simply connect the loudspeaker cables of the head unit to the enclosed cable plug as follows:
White: CH1 / left front +
White-Black: CH1 / left front –
Gray: CH2 / right front +
Gray-Black: CH2 / right front –
Green: CH3 / left rear +
Green-Black: CH3 / left rear –
Purple: CH4 / right rear +
Purple-Black: CH4 / right rear –
CH1
CH1
+
CH3
CH3
+
CH2
CH2
+
CH4
CH4
+
The BASS BOOST controller adjusts the bass boost continuously from 0 dB to +12 dB at 40 Hz on channel pair 3/4.
NOTE: Always use this controller with care. A permanently too high bass boost could damage your speakers!
17


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