User Controls - PRESONUS Eris Sub8 Owner's Manual

2 Hookup
2.1 Rear-Panel Connections and Controls
2.1.4

User Controls

AC Select Switch. The input-power voltage is set at the factory to
correspond with the country to which it was shipped. Use this switch only
if you are using your Eris Sub8 in a country that uses a different standard
voltage than is used in the country where you purchased your Sub8.
Polarity. The Polarity button reverses the polarity of the input signals.
Power User Tip: Once your have connected your Sub8 to your system, try experimenting
with each setting while listening to your favorite music. Leave this switch in the position
where the bass was the loudest.
High Pass Filter. Removes frequency content below 80 Hz from the
full-range signal sent from the Sub8 outputs. This is useful if your
main studio monitors do not have their own high pass filter.
Power User Tip: Leaving frequency content below 80 Hz in full-range monitors can
cancel out or reinforce the highest frequencies that are reproduced by the Eris Sub8. This
can make the bass response of the overall system muddy and ill-defined. By rolling off
your full-range speakers, you will create a more linear frequency response between the
subwoofer and full-range content.
Low Pass Filter. This control determines the upper end of the frequency range
reproduced by the Eris Sub8. If you have enabled the onboard High Pass Filter, set
the Low Pass Filter control to 80 Hz. Otherwise, set the Low Pass Filter control to the
lowest frequency that your main monitors can reliably reproduce.
Eris Sub8
™
Owner's Manual
4