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Working with the GUI
Navigation bar
: At the very top of the Screen you will find the Navigation bar.
At the left is the connection indicator. When you open the program while you are con-
nected to the DSP it will automatically link so you can use the GUI.
If connection is lost it will show Not Linked so you can check the connections.
Next is
Channel Setup
, which is where you will tell the program what inputs and
outputs you are using.
To begin you need to define your system. Fixed 2-Ch inputs (Toslink and Digital BT) will
apply left channel information to all odd number output channels and right channel in-
formation to all even numbered output channels. The analog input is for Aftermarket
head units and OEM (factory) head unit adaptions. These can be 2-Ch, 4-Ch, or 6-Ch RCA
inputs. There are also 4-Ch of speaker level inputs for OEM Integration. The SUM button
will combine highs and lows from a 2-way factory system to make a single full range sig-
nal for processing. The Custom/Sum lets you determine your configuration. After you
have chosen your input you can move on using the GUI.
The ST-X DSP GUI Program
Before beginning the setup be sure all signal sources are turned fully down so
there is no volume until after the crossovers are set.
The control program (GUI) for the ST-X DSP amplifiers is the same functionally for all
the models except for the number of channels. Both will have a default system in the
channel designation column but since you have complete control over all functions, you
can use all channels as they best suit your individual system.
Loading the GUI
Download the GUI (Graphic User Interface) from www.zapco.com > Downloads, if you
have not already done that, and load the GUI from the .exe file.
Connecting the PC: Connect the PC to the ST-X DSP amp using the supplied USB cable.
NOTE: The ST-X DSP GUI is very forgiving about PC Screen resolution. However the ideal
resolution 1600 x 900 optimal on most PC’s.
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