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Summary of Contents for Cloud CXA215K
- Page 1 CXA SERIES DIGITAL AMPLIFIERS MODELS: CXA21K & CXA215K Installation and User Guide CXA21K & CXA215K Manual V1.1...
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Page 2: Technical Notices
Technical and Safety Notices Note: The intent of the lightning flash with arrowhead symbol in a Please read the following important technical, safety and triangle is to alert the user to the presence of uninsulated “dangerous” environmental notices before installing and using your voltage within the product’s enclosure that may be of sufficient amplifier. -
Page 3: Important Safety Instructions
Technical and Safety Notices Important Safety Instructions Environmental Statement Read these instructions. This product complies with international directives, Keep these instructions. including but not limited to the Restriction of Heed all warnings. Hazardous Substances (RoHS) in electrical and Follow all instructions. electronic equipment, the Registration, Evaluation, Do not use this apparatus near water. -
Page 4: Introduction And Overview
1. Introduction 2. Amplifier Overview CXA21K and CXA215K power amplifiers have been CXA21K and CXA215K amplifiers are a full rack width, 2U format power amplifiers that can drive both conventional low impedance designed to provide configurable, consistent and (Lo-Z, 4Ω to 16Ω) loudspeakers and high impedance (Hi-Z, reliable high performance audio power amplification for 70V/100V) transformer coupled loudspeakers. -
Page 5: Network Features
Section 5 of this manual. 3. Carton Contents 2.2 Network Features CXA21K and CXA215K amplifiers are shipped in a cardboard carton containing the amplifier unit, a mains cable appropriate for CXA21K and CXA215K amplifiers are TCP/IP network connected the sales territory, an accessory pack, and a document pack. The full devices that require a wired or wireless network connection to contents is listed below. -
Page 6: Installation
“ears” attached and are primarily intended for standard (19 inch) equipment rack installation. If not to be installed in an equipment rack, CXA21K and CXA215K amplifiers can be placed free-standing on a flat surface. Adhesive rubber feet are supplied for this purpose. -
Page 7: Network Services
DHCP for network connection if required. However, if a CXA21K and CXA215K amplifier using DHCP is power cycled, it is possible that Configuration requires that CXA21K and CXA215K the TCP/IP network router will assign it a different IP address, leaving amplifiers are connected to mains power, switched on its configuration page inaccessible via the previous address. -
Page 8: Configuration Menus
The Input Tab provides the following configuration parameters for Opening a web browser that is network connected to a CXA21K each amplifier input channel: and CXA215K amplifier initially displays the CXA21K and Input name • CXA215K Control Web App Dashboard illustrated in Diagram •... - Page 9 Configuration Select mix function Mix name - type to edit Adjust mix input level Select and adjust required EQ stages Diagram 5C Diagram 5D Input EQ display Input Mix display A pink noise or sine wave audio signal generator, appropriate for audio system testing and set up, can also be enabled, disabled, and adjusted for gain and frequency via the Input Tab.
- Page 10 Enable and configure output delay if required Note: The number of individual outputs available for configuration Enable and configure output EQ if required will depend on the CXA21K and CXA215K amplifier model and the input, zone and output mode configuration. Configure and manage speaker presets •...
- Page 11 Configuration The Equalizer menu enables parametric equalization to be • Diagram 5I applied to individual amplifier outputs. Equalizer settings Speaker Preset import file selection configured for one amplifier output can be copied and applied to other outputs. • The Speaker Preset menu enables a set of speaker parameters to be adjusted, and preset configurations to be created, exported, imported or cleared.
- Page 12 Configuration Diagram 5J Diagram 5K Speaker Preset applied Speaker Preset parameter adjustment The FIR preset menu enables FIR (Finite Impulse Response) • Note: In automatic mode, the peak limiter parameters adjust based equalization filter coefficients generated by external automatically in response to Crossover & Gain high-pass filter speaker measurement software to be imported and applied to settings.
- Page 13 Configuration 5.3.5 Settings Tab The Settings Tab enables miscellaneous amplifier settings to be configured and installation data to be recorded. The Settings Tab provides access to further sub-menus. Diagram 5L illustrates the Settings Tab. External device - tap to configure •...
- Page 14 Configuration The Speaker Library menu enables management of speaker • preset libraries. Existing libraries of speaker preset files (.zcl) can be created or imported, and existing libraries edited or fully deleted. Diagram 5N illustrates the creation and management of speaker preset libraries. Library name - type to edit •...
- Page 15 5.4 Setup and Signal Routing Thanks to their network based configuration features, CXA21K and CXA215K amplifiers offer considerable versatility in terms of sources, signal routing, installation zones and output modes. Inputs can be freely assigned to installation zones, and those zones assigned freely to the available amplifier outputs in either Lo-Z or Hi-Z modes.
- Page 16 • 1 x mono Hi-Z zone + 2 x mono Lo-Z zones Note: Only dynamic microphones are suitable for connection. Phantom power for condenser microphones is not provided. Note: When configured in Hi-Z mode CXA21K and CXA215K amplifiers operate in ‘bridged’ mode where the output of two •...
- Page 17 5.5 GPIO Setup and Connection Diagram 5P GPIO Settings Menu CXA21K and CXA215K amplifiers provide a GPIO socket that enables remote control of volume, standby, mute and trigger functions. The GPIO connector pin functions are described in the GPIO Settings menu illustrated in Diagram 5P. The connection of GPIO based remote volume control and standby/mute are illustrated in Diagram 5Q and Diagram 5R respectively.
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Page 18: Input Connection
(–) amplifier terminals always connected to negative speaker terminals. Analog Inputs CXA21K and CXA215K analog inputs are of line level format In the case of Hi-Z speaker connections, the two speaker cable with a default input sensitivity of +4dBu (full output voltage conductors should be connected between the positive (+) terminal swing/sensitivity) in all output modes. -
Page 19: Network Connections
≈16 ≈14 6.5 GPIO Connections ≈12 If any CXA21K and CXA215K GPIO functionality is required, cables will need to be connected to the supplied GPIO connector. Connecting cables to the GPIO connector is Cable Gauge Table illustrated in Diagrams 6D. - Page 20 Connections Diagram 6B Balanced analog input cable connections. 5 mm Low-Z Mode 5 mm Diagram 6C Output cable connections. Hi-Z/BTL Modes 5 mm...
- Page 21 Connections Diagram 6D GPIO cable connections. 5 mm The exclamation point printed next to the output terminals of the amplifiers is, in addition to the CLASS 2 WIRING text, intended to alert users to the risk of hazardous voltages. Output connectors that could pose a risk are marked with the exclamation point.
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Page 22: Operation
Operation 7. Operation 7.2 Default Reset CXA21K and CXA215K amplifiers can be returned to their default Once all connections have been made and configuration settings via either the Control Web App Settings Tab or through options selected, CXA21K and CXA215K amplifiers are the front panel power button. -
Page 23: Specifications
Specifications Model CXA21K-EK CXA215K-EK Channels 4 x Lo-Z/2 x Hi-Z 4 x Lo-Z/2 x Hi-Z Output Power @ 2Ω 4 x 500 W (SE) 4 x 750 W (SE) 4 x 500 W (SE) 4 x 750 W (SE) Output Power @ 4Ω...
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