Audio Control EPICENTER Owner's Manual page 10

Adjusting the Para-Bass Controls
The bass response in a system is affected by four factors; (1) the acoustics
of the vehicle, (2) the location of the speakers, (3) the music on the tape, CD, or
source unit, and (4) speakers and speaker enclosures. Because of the variations
in the recording process, we developed The Epicenter to help restore any low
frequencies lost during the recording process, however, the acoustics of various
environments are different. With this in mind our coffee-laden engineers
developed the unique Para-BASS
The "Sweep" control allows you to select a center frequency (the frequency
most affected) between 27 and 63 Hz. The "Width" control then allows you to
control the shape of the filter centered around the "sweep" frequency.
Setting The Bass Output Control
The Epicenter is the most powerful bass component in the history of
autosound. Able to leap tall buildings with a single bound and all that kind of
stuff. With that in mind we have equipped The Epicenter with several different
Bass Output selections. If you should need to change the settings, please use
the chart below for guidance. A word of advice: listen to the factory setting
before changing your Bass Output settings.
Recommended Settings
Setting
2.5 Volt
5 Volt
7.5 Volt
10 Volt
PFM Subsonic Filter
Many car audio systems truly push the limits of their subwoofer...without
really knowing it. Tuned enclosures affect the roll-off of many speakers, yet
lots of source material forces the speakers to play lower than expected. The net
result is wasted amplifier power and damaged speakers. The AudioControl
PFM (Programmable Frequency Match or Pure F#@&% Magic) filter is a
programmable subsonic filter. It allows you to only let the speaker play as low
as it should be playing. Because every system is different, we allow you to
change the PFM roll-off frequency to whatever you choose.
On most systems, the factory installed module (33Hz) is fine. If you know
the tuning frequency of your speaker enclosure (porting frequency or 3dB down
point), you might try setting your PFM module to that frequency. If you want
to protect your speaker system even more, you might even try a higher fre-
quency. Oftern a higher frequency actually sounds louder and cleaner.
page 10
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Amplifier Input Voltage
3 volts or less
5 volts or less
7.5 volts or less
Oh My Gosh!!!!!!!
system.
Minimum Speaker Size
8"
10"
12"