CROSSOVER CONTROLS
INPUT SECTION
Before securing the amplifier, inspect the mounting location carefully to ensure
that you do not drill into or damage any electrical, hydraulic, fluid or fuel lines.
Because of the wide range of head unit output configurations all DS18 ATOM amps
have an adjustable input sensitivity of “Gain”. The gain is not a volume or a power
limiting control like a throttle. It makes the amp more sensitive to input from the
stereo; with the gain up, the amp will reach full output at a lower volume setting
on the deck. At higher gain settings the amp also becomes more and more
sensitive to noise from the car’s electrical system. Try to run the gain at the lowest
setting possible for your system.
There is no correct gain
setting, because
speakers require
different power
demands to reach the
same output, the gains
most often need to be
used to compensate for
these differences. If you
tried to set all the gains
at half way you would probably find the system didn’t sound very good. Using
good judgment and listening carefully to each speaker is still the best way to tune
a system.
A crossover is a device
that removes unwanted
frequencies from a
speaker or amplifier. A
tweeter can easily be
destroyed by bass notes
if they are not filtered
out. Likewise a
subwoofer will not
sound natural if it is
playing midrange
notes. A crossover
removes these sounds from the speaker. As you might guess, careful adjustment
in need to ensure that all the speakers are playing the right sounds and that you
are left with no “holes” or low spots in the frequency response.
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