PreSonus ACP22 - Manual (Page 5)

Overview
1.1 Introduction
Thank you for purchasing the PreSonus ACP-22 dual channel/stereo
dynamics processor with full featured gates. This processor was designed
using state of the art components to deliver crystal clear compression and
noise gating for an infinite period of time. We believe that it is an
exceptional sounding unit as well as an exceptional value. Feel free to
contact us at 1-800-750-0323 anytime for any reason whatsoever. We value
your suggestions and your comments!
Please pay close attention to how you connect your ACP-22 to your system.
Improper grounding is the most common cause of noise problems found in
studio or live sound systems. We urge you to at least scan this manual before
hooking up your ACP-22 to become familiar with its features and various
applications.
Good luck and enjoy your ACP-22!
1.2 Features
The following is a summary of your ACP-22's features:
· Full Featured Compressors/Limiters. Both channels of your
ACP-22 contains an audio compressor that can also be setup as a
limiter by varying the ratio of compression. You have broad control
over threshold, ratio, attack and release for each processor. You can
select between auto or manual attack and release curves and hard or
soft knee compression types (refer to the application section of this
manual for a quick tutorial on compression and limiting). The
compressor will prove to be very useful in many situations such as
recording instruments or vocals that vary in loudness, or setting it up
as a soft limiting device before your digital recorder to prevent
distorting your digital recorder's inputs. The stereo mode of
operation is ideal for use on the master output of your console whether you
are mixing down or for live sound reinforcement.
Two Dynamic Noise Gates. Both channels of your ACP-22 have a separate
dynamic noise gate that can be used to gate a drum, clean up a noisy tape
machine, isolate an instrument or separate a vocal from background noises.
Each noise gate provides control over attack, threshold, release and gate