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The Dolby® Digital Cinema Sound Processor CP750 provides easy-to-operate audio control in digital cinema environments equipped with the latest technology while integrating seamlessly with existing technologies.
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The CP750 supports innovative Dolby Surround 7.1 premium surround sound, and will receive and process audio from multiple digital audio sources, including a digital cinema server, preshow servers, and alternative content sources. The CP750 is ready for the network operations center (NOC) and can be monitored and controlled anywhere on the network for status and function. Hearing-impaired (HI) and auxiliary analog outputs complement the CP750’s main eight-channel audio output.
The CP750 integrates with Dolby Show Manager software, enabling it to process digital input selection and volume cues within a show, real-time volume control from any Dolby Show Manager client, and ASCII commands from third-party controllers.
Moreover, Dolby Surround 7.1 (D-cinema audio), 5.1 digital PCM (D-cinema audio), Dolby Digital Surround EX™ (bitstream), Dolby Pro Logic® II, and Dolby Pro Logic decoding are all included to deliver the best in surround sound from all content sources for your single-screen, multiplex, or large network.
Dolby Digital Cinema Sound Processor CP750 Features
Dolby Show Manager Software Integration Builds volume cues and digital input selection into shows with drag-and-drop ease for seamless control
Eight-Channel Digital Input (4 × AES/EBU) for Digital Cinema ServerIncludes support for Dolby Surround 7.1; provides access to hearing-impaired (HI) and visually impaired-narrative (VI-N) tracks when provided on 7/8
Two Digital Pair Inputs (1 × AES/EBU Each) Connects alternative content sources (for example, preshow server or satellite receiver)
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 a PC
Ethernet Connector Connects with Dolby Show Manager network and/or can be monitored, controlled, or upgraded anywhere on the network for glitch-free shows
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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 HI 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
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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 Remote Fader CAT868 (not an Ethernet connection)
Backup Power Port
4-pin female XLR connector for use with optional External Power Supply CAT994
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
External Power Supply CAT994
Remote Fader CAT868
CP750-CK Connector Kit
CP750 Installation Manual (Dolby Part Number 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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