User manual QSC AUDIO DCM-3 DATASHEET 02-23-06

[. . . ] Digital Cinema Monitors DCM-1 | DCM-3 DCM QSC's Digital Cinema Monitors provide signal processing and monitor functions in a single integrated system. Designed to be used with QSC's Digital Cinema Amplifiers (DCAs), DCMs optimize loudspeaker performance while simplifying cinema sound system wiring and configuration. [. . . ] Less wiring, faster setup DCMs greatly simplify system wiring and set-up, significantly reducing installation time and labor cost. Input to the DCM is provided via a standard DB-25 cable from the cinema processor. Connections to DCA amplifiers for input and monitor signals are made through a single QSC DataPort / VGA-style cable. All traditional XLR and barrier strip terminations are eliminated. DCMs also simplify set-up by using a menu-driven, PCbased software program for configuration. The program includes a speaker data file that lists default parameters for popular cinema speaker models. Commonly used configurations can also be saved on a disk, allowing you to quickly load them on other DCMs. Advanced Monitor Functions In addition to audio monitoring of amplifier inputs and outputs, DCMs include QSC's exclusive "load fault" detection. DCMs monitor all amplifier outputs and indicate opens and shorts in the speaker system and wiring via LED "load fault" indicators, providing confirmation that all amplifiers outputs are functioning properly. Features · Provides Monitor and Crossover functions in one box · Digital Signal Processing for State-of-the-art sound quality (high dynamic range) · Fast system setup time (especially in megaplexes with similar rooms) · Simple connections with QSC DataPort connectivity. Only one cable per amplifier needed (contains two signal inputs, two signal returns, power on/ standby control and two channels of load monitoring) · Exclusive "Load Fault" detection indicates speaker system or wiring faults · Simple crossover adjustments via PC with password control for tamper proof system adjustments · Lower system cost than existing tri-amp solutions · Compatible with all current sound formats; 3-5 screen channels, 5. 1 - 7. 1 · 3 year warranty plus optional 3 year extended service contract DCM The QSC DCM acts as the interface between a cinema film audio processor and the power amplifiers in a bi-amp or tri-amp cinema sound system. The DCM performs two major functions: automatic and manual monitoring of processor and amplifier signals, and fully programmable crossover/EQ filtering. Dimensions (HWD): 5. 25" x 19" x 14" Line Voltage Requirements: 85 VAC - 260 VAC, 50/60 Hz Accessories Included: (1) 6 ft. [. . . ] Q can be programmed as 0. 707 or 2, flat or "step-down" operation One mute for all subwoofer outputs Hardwire pass-through from processor input via Surround Insert 2 or 3 selectable on rear panel Parametric EQ: CD Horn EQ: Screen EQ: Delay: Polarity: Mute: Subwoofer: Output Stage Type: Output Attenuation Steps: Dynamic Range: THD+N 20 Hz-20 kHz, +12 dBu Input Level, All Filters Flat: Filter Topology: High Pass Filter: Mute: Surround Channels: Output Channels (using the Surround Insert connector): Amplifier A. C. Control all amps power on with DCM activation Emergency Bypass Crossover Filter Type: Attenuation Range (trimpot): Powered Subwoofer Output Output Stage Type: Output Impedance: Maximum Output Level: Loading Requirements (total of remote & dataport connection): Hearing Impaired Output Output Stage Type: Output Impedance: Nominal Output Level: Loading Requirements: Surround Insert I / O Output Stage Type: Input Stage Type: Monitor Speaker Dimensions: Amplifier Output Power: Frequency Response: Dynamic Processing: 1st order Butterworth, 2 or 3 way -6 dB to -24 dB Single ended (balanced impedance) 50 +14. 2 dBu (4. 0 Vrms) RMIN = 2k ohms CMAX = 4 nF Single ended (balanced impedance) 50 -11. 8 dBu (200 mVrms) RMIN = 2k ohms CMAX = 4 nF Hardwired connection to processor input connector Hardwired connection to DataPort output connector 4-inch full range driver 10 watt class AB amplifier 100 Hz ­ 8 kHz (±2 dB) 1. 5:1 compression 1675 MacArthur Boulevard · Costa Mesa, CA 92626 · Ph: 800/854-4079 or 714/957-7100 · Fax: 714/754-6174 DCM Spec Sheet - 02/23/06 qscaudio. com [. . . ]