Emergency Bypass; Surround Insert Connections; Active Surround Ready - QSC DCM series User Manual

the theater. Many installers pride themselves on being able to adjust the electrical parameters
(crossover points, equalization, delay, etc) to exactly compliment the speaker and room interac-
tions. As such, their ability to set these parameters is a "value added" service which deserves
protection from competitors. We have therefore included a security system where you can pro-
tect your settings within the DCM from being uploaded and copied by the DCM Commander soft-
ware. Only your unique password will allow viewing or editing of the crossover settings, however,
should you forget your password, an entirely new configuration can be loaded.

7. Emergency Bypass

One of the main design goals of the DCM series was to offer a foolproof method of getting sound
into the theater "no matter what"! To accomplish this, a passive crossover has been built into the
center channel routing so that even with a total loss of power to the DCM, a usable sound path
will be maintained. Activation of this bypass is done by the projectionist via a front panel Emer-
gency Bypass switch.

8. Surround Insert Connections

There has been discussion concerning format changes to the cinema surround channels. To allow
maximum flexibility, we have included an extremely easy method of routing the surround signals
out of the DCM (to an external processor box such as a Dolby SA-10), and back into the DCM for
routing to the QSC amplifiers.

9. Active Surround Ready

The DCM-2 and DCM-3 units are prepared for the addition of circuitry that allows crossover and
equalization of the surround channels. Please contact the QSC factory if you have an application
which requires this function.
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