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Summary of Contents for Cloud CX-A4
- Page 1 CX-A4 Amplifier Installation & User Guide V9.0 Cloud Electronics Limited 140 Staniforth Road, Sheffield, S9 3HF England Tel + 44 (0) 114 244 7051 Fax + 44 (0) 114 242 5462 E-mail info@cloud.co.uk Web site http://www.cloud.co.uk...
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Page 2: Table Of Contents
General Description ..............2 Installation ..................2 Input Facilities ................2 Output Details ................4 100V Line operation ..............4 Configuring the CX-A4 for 100V Line operation ......5 Bridged Mode Operation ............5 Status Indicators ................5 VCA Modules ................6 Peak Limit + VCA Modules ............6 Remote Level Connections ............6 ... -
Page 3: General Description
For more detailed information refer to the rear of the manual. General The CX-A4 is a four-channel power amplifier with a maximum channel output of 120 watts into 4 ohms. The unit features extremely low distortion and low noise together with a high slew rate. - Page 4 CX-A4 I NSTALLATION AND OPERATION MANUAL POWER AMPLIFIER LEVEL CONTROL SOURCE SWITCHES INPUT AMPLFIER INPUT 1 FROM MONO SOURCE FOUR CHANNELS DRIVEN FROM ONE MONO SOURCE POWER AMPLIFIER LEVEL CONTROL SOURCE SWITCHES INPUT AMPLFIER INPUT 1 INPUT 2 FROM STEREO SOURCE...
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Page 5: Output Details
100V Line operation Connecting a CXL-100 100W 100V-line module across an output of the CX-A4 will obtain a 100W 100V-line output from that channel. The CXL-100 has to be mounted externally of the amplifier and 70V or... -
Page 6: Configuring The Cx-A4 For 100V Line Operation
240 watt 8 ohm outputs. Status Indicators The front panel of the CX-A4 has an array of LED’s that indicate the status of all four channels. The lower green LED illuminates when a signal exceeding 500mW is detected, the yellow 'peak' LED will illuminate when the amplifier output is close to clipping and the top red LED indicates that the protection relay has disconnected the load. -
Page 7: Vca Modules
NSTALLATION AND OPERATION MANUAL VCA Modules A two-channel VCA module is available as a plug-in option for the CX-A4 (see section 13 for installation details) and is supplied with either one or two control plates. The unit can operate two channels independently or switched to provide stereo attenuation via one control plate. -
Page 8: Bose Equalisation Modules
EQ: Two 25mm M3 hex spacers. The CX-A4 connectors to install the VCA modules are to the rear of the amplifier on the input PCB clearly marked on the PCB as ‘CON X TO VCA MODULE’ where ‘X’ is 1 or 2 see below: - CON 1 = Channel 1&2... -
Page 9: Field Servicing
VCA Module Orientation (Side View) Field Servicing The CX-A4 is ruggedly built and uses proven reliable circuitry. It requires no more than the occasional removal of any dust that may have built up inside the unit as a result of the forced cooling. -
Page 10: General Specifications
CX-A4 I NSTALLATION AND OPERATION MANUAL General Specifications Inputs Balanced via 3 pin XLR type connector. Outputs Binding Posts for flexible cables up to 2.5mm² Protection VI limiting, DC offset, Thermal and Switch-on Delay Status LED indicators on each channel for Signal, Peak & Protect. - Page 11 CX-A4 I NSTALLATION AND OPERATION MANUAL CAUTION – Installation Do not expose the unit to water or moisture Do not expose the unit to naked flames. Do not block or restrict any air vent Do not operate the unit in ambient temperatures above 35 CAUTION –...
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