MAC Audio FEARLESS 2200 D Manual De Instrucciones página 11

· Never connect the loudspeakers' minus terminals to the vehicle chassis.
· Never connect the +12 V supply voltage to a loudspeaker output as this would destroy the amplifier
final stage.
If the amplifier is operated with lower terminal resistances or incorrectly used as described above,
both the amplifier and the loudspeakers may be damaged. The warranty becomes void in such cases.
5. OPERATING ELEMENTS AND IN-/OUTPUTS
5.1 SETTING THE INPUT SENSITIVITY
The input sensitivity may be adapted to any car radio or tape deck. Turn the volume control of your radio
to is central position and then adjust the input-level control (3) to produce an average medium volume.
This setting usually provides sufficient power reserves at optimum weighted noise voltage.
ATTENTION: only reproduce loud test noises briefly to prevent damaging the loudspeakers.
5.2 LOW-PASS FILTER WITH ADJUSTABLE CROSS-OVER FREQUENCY
If the amplifier is used as a subwoofer amplifier, set the switch (6) to "LPF". Set the desired cross-over
frequency with the control (5). This makes the filter adaptable to the installed woofer's sound requirements.
The filter's high edge steepness is responsible for the precision reduction of medium and high frequency
ranges.
5.3 HIGH-PASS FILTER WITH ADJUSTABLE CROSS-OVER FREQUENCY
If the amplifier is to be used as an amplifier for satellite loudspeakers (mid-range/tweeter loudspeakers),
set switch (6) to "HPF". Set the desired cross-over frequency with the control (5). Only the frequencies
above the set cross-over frequency will then be amplified. This effectively minimizes distortions caused
by excessive membrane movement at low frequencies and small satellite loudspeakers without reducing
the bass level.
5.4 BASS-BOOST
The bass-boost function is used to increase or equalize the lower bass frequencies. Infinitely variable
accentuation level using control (4).
5.5 OUTPUTS FOR CONNECTING ADDITIONAL AMPLIFIERS
The cinch-connectors labelled "LINE OUTPUT" may be used to hook up additional amplifiers without any
need for cable splitters or T-connectors.
FIG. 1 POWER SUPPLY / REMOTE SWITCH-ON CONNECTION
(1) GND terminal for the ground, to the battery's minus pole
(2) REM terminal for remote switch-on
(3) Terminal for +12 V battery voltage
(4) Battery
(5) Cable fuse
(6) To your car radio's automatic aerial connection
If your car is not equipped with an automatic aerial connection, connect this cable's plus pole (+) to
the ignition lock. An on/off switch should be inserted in this case. Make sure that this switch is
switched off if the amplifier is not used.
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