Dolby Digital Cinema Sound Processor CP750

The CP750 Digital Cinema Processor is a key part of Dolby’s comprehensive digital cinema solution. It provides easy-to-operate audio control for any kind of digital cinema server, three digital preshow and alternative content sources, an existing film sound processor, a microphone input, and an analog nonsync source. Hearing-impaired and auxiliary analog outputs complement the CP750’s main eight-channel audio output.

While the CP750 is ideal for new digital-only theatres, it is also the best long-term choice for digital cinema conversions. Unlike limited-function digital adapters, the CP750 functions on its own when you no longer need to show film, saving the cost of maintaining or replacing your legacy processor.

The CP750 integrates with Dolby® Theatre Management System (TMS) software, so that it can respond to digital input selection and volume cues within a show, real-time volume control from any Dolby TMS client, and ASCII commands from third-party controllers.

Moreover, Dolby Digital 5.1, Dolby Digital Surround EX™, Dolby Pro Logic®, and Dolby Pro Logic II decoding are all included to deliver the best in surround sound before and during the show from all content.

The Dolby CP750 combines robust construction, state-of-the art hardware and software, practical functionality, and legendary Dolby quality. Whether you need to equip a single screen, a multiplex, or a large network, the Dolby CP750 is your most logical choice.

Dolby CP750 Digital Cinema Processor Features

Freestanding Digital Cinema Processor Saves cost of maintaining a legacy cinema processor coupled with a D/A adapter when film processing is no longer a requirement

Eight-Channel Digital Input (4 × AES/EBU) for Digital Cinema Server Plays up to eight-channel soundtrack; provides access to hearing- and visually-impaired narrative tracks when provided on 7/8

Two Digital Pair Inputs (1 × AES/EBU Each) Connects alternative content sources (preshow server, satellite receiver, etc.) for additional revenue

Toslink Digital Input Connects alternative content sources that output optical digital audio

Eight-Channel Analog Input Connects existing film sound processor for hybrid installations or retrofits

USB Connector Enables easy system setup from PC

Ethernet Connector Connects with Dolby TMS network and/or can be monitored, controlled, or upgraded anywhere on the network for glitch-free shows

Dolby TMS Software Integration Builds volume cues and digital input selection into shows with drag-and-drop ease for seamless control

Front Panel

Digital 1 Input

4 × AES 25-pin female D-connector provides four AES/EBU channel pair inputs
Input impedance: 110Ω balanced

Digital 2, 3 Inputs

1 × AES male BNC connectors, unbalanced but floating, per AES-3id-1995/SMPTE 276M
Input impedance: 75Ω

Digital 4 Input

Optical Toslink™ connector

Multichannel Analog Input

Eight-channel 25-pin female D-connector, balanced analog, 10K differential input impedance
Reference level: 300 mV

Nonsync Input

Two-channel RCA connector, 21K input impedance, adjustable input level

Microphone Input

XLR connector, standard pinout, 10K differential input impedance, 12V phantom power available, adjustable gain

Rear Panel

Main Audio Output

Eight-channel 25-pin male D-connector, balanced floating analog, 100Ω differential output impedance
Do not load with less than 600Ω differential

Auxiliary Output

Two-channel, unbalanced analog, 100Ω output impedance, RCA connectors
Reference level: 200 mV
Always routes channel pair 7/8 of 4 × AES input for alternate uses such as H/I and VI-N transmitters—this fixed-level output has no EQ and is not controlled by the fader

Hearing-Impaired Output

One-channel, unbalanced analog, 100Ω output impedance, RCA connector
Center weighted sum of Left, Center, and Right channels
Output level: 200 mV

Other Inputs/Outputs

Ethernet Connector

RJ-45 for network connection and PC setup software

Automation Connector

25-pin female D-connector, floating ground

RS-232 Serial Port

9-pin female D-connector

Remote Connector

RJ-45 connector for use with optional Cat. No. 868 Remote Fader (not an Ethernet connection)

Backup Power Port

4-pin female XLR connector for use with optional Cat. No. 994 External Power Supply

AC Input

Simple unswitched IEC power inlet module

USB Port

For connection to PC to run setup software

Audio Processing

PCM

44.1, 48, and 96 kHz; 16-, 20-, and 24-bit

Dolby Digital (AC-3)

Up to 5.1 channels

Dolby Pro Logic

L, C, R, and S (SW configurable)

Dolby Pro Logic II

L, C, R, Ls, and Rs (SW configurable)

Dolby Digital Surround EX

L, C, R, Ls, Rs, Bsl, Bsr, and SW

Nonsync

L, R, and S (SW configurable)

Other Parameters

Global Audio Delay

All input sources separately adjustable from 0–250 ms

Surround Delay

Digital surround delay: 0–150 ms; Dolby Pro Logic surround delay: 0–150 ms

Equalization

Eight-channel 1/3-octave plus parametric for SW

Dynamic Range

Typically 105 dB clip to CCIR/ARM weighted without noise optimizer enabled, up to 10 dB more with optimizer enabled

Distortion

Typically 0.005% from eight-channel analog input to main output

Optional Accessories

Cat. No. 994 External Power Supply
Cat. No. 868 Remote Fader
CP750-CK Connector Kit
CP750 Installation Manual (DPN 9110270)

Power Requirements

100–240 VAC, 50–60 Hz

Dimensions and Weight

2-U rackmount chassis
89 × 432 mm (3.5 × 17 inches)
Overall depth, including connectors and fader knob: 269 mm (10.6 inches)
Depth behind rack ears, including connectors: 248 mm (9.75 inches)
Depth in front of rack ear mounting surface: 24 mm (0.94 inches)
Net: 4.2 kg (9.4 lb)

Environmental Conditions

Operating: 0°C–40°C (32°F–104°F)
Humidity: 20%–80% relative humidity (noncondensing)

Regulatory Notices

North America: This unit complies with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules, and Industry Canada ICES-003 specifications. It is UL Listed for the US and Canada.
Europe: This unit complies with the requirements of Low Voltage Directive 2006/95/EC and EMC Directive 2004/108/EC and carries the CE marking accordingly.

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