QSC DCM series, User Manual

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WARNING: Do not send audio to your amplifiers and speakers until you have verified that the
crossover and gain settings are appropriate. Incorrect crossover settings can damage speakers!
NOTE: all screen channels default to a crossover frequency of 1.5 kHz.
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In a typical installation, you will need to do the following...
Step 1: Connect the DCM hardware unit to your PC serial port, and start the DCM Commander
software.
Step 2: Go to the Configuration section and open the General Configurations window.
Step 3: Fill in the appropriate settings such as name, date, which outputs you need to use, etc...
Step 4: Go to the Amp & Speaker Configuration window and select the Amplifier models that
you are using and the Speaker models (the most common cinema speakers will be listed). Your
setup is now 90% complete!
Step 5: Go to the DSP Settings window. Verify all of the parameters that were automatically
set by your Amplifier and Speaker choices. If you want to change anything, just select Customize
and the parameter fields can be editted. There are a few settings which are not automatically
entered, such as whether or not a Screen EQ should be applied to the screen channels. Verify all
of these settings and you are ready to download everything to the DCM hardware unit.
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WARNING: The next step can change all of the audio signal volumes and frequency con-
tent. Incorrect frequencies can damage speakers! Also, it is a good idea to turn down the
volume on all amplifiers during initial setup procedures.
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Step 6: Select Connect | Write Configuration to DCM . All of the settings that you made are
now programmed into the DCM hardware unit.
Step 7: Save this file on two backup diskettes (one copy for you, and one copy to be left at the
theater).
Step 8: Verify proper audio response in all channels.
NOTE: Always optimize the DCM response before doing any processor EQ adjustments.
2. Editing a Configuration file
In simple terms, you will need to work like this...
Step 1: Start by saving any settings that are currently in your DCM Commander software.
Step 2: Get the currently active settings (configuration file) from the DCM hardware unit by se-
lecting Connect | Get Configuration from DCM .
Step 3: Save this "pre-modification" file as a backup.
Step 4: Modify a parameter (usually in the DSP Settings window) - document any changes in
the configuration name and notes (at least your name, version number, and the date modified)
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