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Summary of Contents for Cloud CXA250
- Page 1 CXA SERIES DIGITAL AMPLIFIERS MODELS: CXA125 / CXA2125 / CXA250 / CXA2250 Installation and User Guide CXA125 / CXA2125 / CXA250 / CXA2250 Manual v1.4...
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Page 2: Technical Notices
Technical and Safety Notices Please read the following important technical, safety and Safety and Environmental Notices environmental notices before installing and using your Note: The intent of the lightning flash with arrowhead symbol in a amplifier. triangle is to alert the user to the presence of uninsulated “dangerous” voltage within the product’s enclosure that may be of sufficient Technical Notices magnitude to constitute a risk of electric shock to humans. -
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 CXA power amplifiers have been designed to provide CXA125, CXA2125, CXA250 and CXA2250 amplifiers are half rack width, 1U format power amplifiers that can drive both conventional configurable, consistent and reliable high performance low impedance (Lo-Z, 4Ω to 16Ω) loudspeakers and high audio power amplification for residential, commercial and impedance (Hi-Z, 70V/100V) transformer coupled loudspeakers. -
Page 5: Carton Contents
Introduction and Overview 2.1 Connections 2.4 Firmware CXA signal input and output connections are accomplished via RCA This manual describes the features, functions and user interface of Phono and Euroblock style connectors. A GPIO (General Purpose CXA amplifiers running Firmware Version 1.5.0. In/Out) Euroblock connector enables some amplifier functions It is strongly recommended that the firmware version installed to be controlled, and wireless or RJ45 socket Ethernet network... - Page 6 Overview Diagram 2A CXA two channel amplifier dimensions. (Shaded area defines ventilation space.) 44 mm 1.7 in 80 mm 3.1 in 25 mm 1.0 in 213 mm 8.4 in 220 mm 8.7 in Diagram 2B CXA four channel amplifier dimensions. (Shaded area defines ventilation space.) 44 mm 1.7 in...
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Page 7: Installation
Installation 4. Installation Note: The rack mounting and desk/wall mounting components described and illustrated in Sections 4.1 to 4.3 are not supplied with CXA amplifiers but are available to purchase as accessories. Part Code: HALF-U RACK KIT Diagram 4A Contact your amplifier re-seller for more information. Rack Ear + Half-rack Extension. -
Page 8: Free-Standing
Installation 4.2 Free-standing Diagram 4D CXA with desk/wall Mounting Plate and adhesive feet. If not installed in an equipment rack, CXA amplifiers can be placed 2 positions and 4 positions. free-standing on a flat surface. Adhesive rubber feet are supplied for this purpose. -
Page 9: Network Services
Configuration 5. Configuration 4. Open a laptop or desktop web browser and enter the address Before making input, output and GPIO connections, an http://192.168.64.100. The CXA Control Web App interface will initial CXA amplifier configuration should be established. open to enable amplifier configuration as required. It is particularly important that the amplifier output format is configured appropriately for the speakers that Note: CXA amplifiers can be configured to use DHCP for network... -
Page 10: Configuration Menus
Configuration 5.3.1 Input Tab 5.3 Configuration Menus The Input Tab provides the following configuration parameters for Opening a web browser that is network connected to a CXA each amplifier input channel: amplifier initially displays the CXA Control Web App Dashboard •... - Page 11 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 12 Configuration Note: Input Priority and Input Ducking parameters can be either set to default values or their Threshold, Attack, Hold and Release values set Select zone as required. Input Priority can also be set to ignore the volume level set for the specified zone and take a specific override volume. •...
- Page 13 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 14 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 15 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 The System Information menu provides text fields for the •...
- Page 16 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 17 Configuration 5.4 Setup and Signal Routing Thanks to their network based configuration features, CXA 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 18 Configuration 5.4.1 Input Setup 5.4.2 Zone Setup & Routing Open the configuration Dashboard and select the Input Tab. The Open the configuration Dashboard and select the Zone Tab. The Input Tab is shown in Diagram 5B. Zone Tab is shown in Diagram 5E. •...
- Page 19 Configuration 5.5 GPIO Setup and Connection Diagram 5P GPIO Settings Menu CXA 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.
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Page 20: Input Connection
Connections 6. Connections Digital Outputs CXA S/PDIF stereo digital audio output connections are made via CXA amplifier rear panel connections are illustrated in a single RCA Phono socket. The S/PDIF output signal can be routed Diagrams 6a. from any input or zone and is intended to be used for daisy- chaining CXA Connect amplifiers. -
Page 21: Network Connections
Connections 6.5 Speaker Cable Gauge Cable Gauge Table Lo-Z installations, 0.5dB attenuation. 4 Ω & 8 Ω loads CXA speaker connection cable gauge should be chosen Max Cable Max Cable Cable Cross appropriately to reflect the type of installation. The adjacent Cable Gauge Length Length... - Page 22 Connections Diagram 6b Diagram 6d Balanced analogue input GPIO cable connections. cable connections. 5 mm 5 mm Diagram 6c Output cable connections. Low-Z Mode 5 mm Hi-Z Mode 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.
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Page 23: Operation
Operation 7. Operation 7.2 Automatic Power Sharing CXA amplifiers incorporate a power sharing feature that Once all connections have been made and configuration automatically shares the total power available from the amplifier’s options selected, CXA amplifiers are ready for use. If an internal power supply across each pair of output channels. -
Page 24: Specifications
Specifications Model CXA125 CXA2125 CXA250 CXA2250 Total System Power 125 W 250 W 250 W 500 W Output Power @ 4/8Ω 2 x 60 W 4 x 60 W 2 x 125 W 4 x 125 W Output Power @...
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