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Connect a PC computer to the RS-232 connector, turn on the DCM unit, load the DCM Manager software
and either load a full configuration file (if this theater uses the exact same settings as another theater), or
select and enter all of the new data.
The General, Amp, Speaker, and DSP Settings tabs must all be set correctly and downloaded to the DCM for
the system to function properly.
Once all system and crossover settings are correct in the DCM Manager software, you are ready to start
calibration.
1. Theater - audio level adjustments
The combination of QSC amplifiers and speakers contained in the DCM Manager database will require little
or no DCM adjustment. Transducer sensitivity imbalances within the speakers have been compensated for
by the factory recommended crossover settings. If you are using a powered subwoofer, or a speaker not
contained in the factory supplied speaker database, you may need to make level adjustments.
INSTALLATION- System Calibration
SYSTEM CALIBRATION
When installing a typical cinema sound system, most of the calibration involves the Cinema Processor.
Refer to the user manual for the Cinema Processor that you are using.
WARNING: Turn the Gain Controls on all of the system’s amplifiers
all the way down until crossover settings and levels are verified!
2. Emergency Bypass Levels
When the emergency bypass switch on the front
panel of the DCM unit is activated, a passive
crossover is used to divide the center channel
audio signal into either a 2-way signal (high
frequency and low frequency), or a 3-way signal
(DCM-2 and DCM-3 only). The relative volumes of
these signals can be adjusted on the rear panel of
the DCM unit. Feed pink noise into the center
channel input, compare the center channel sound
while the front panel switch is in the Normal
position to the sound while in the Emergency
position. While in the bypassed position, adjust
the potentiometers to most closely match the
normal position sound.
DCM-1 Bypass Level Controls
DCM-2 and -3 Bypass Level Controls