Crest Audio CA12, CA18, CA9, CA6, CA4, CA2 owner manual Connecting Inputs, Connecting Outputs

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Connecting Inputs.

Use either the XLR or 1/4-inch input connectors on the rear to supply audio signals to your Crest Audio CA Series amplifier. Both connectors accept balanced and unbalanced audio connections. (The CA Series amplifiers are configured standard with “Pin 2 hot” on XLR inputs. Please note that some other Crest Audio amplifiers are configured with “Pin 3 hot”). The unused connector can be used to jumper the audio input to another amplifier input. For more information, see the sections on Balanced 1/4" (TRS) & XLR Input Connectors, Input XLR Polarity, and Input Sensitivity.

Connecting Outputs.

Speakers are connected using 5-way Output Binding Posts or Speakon connectors, depending on version supplied. Please note that on the 5-way Output Binding Post version of the CA18, two pairs of 5-way bind- ing posts are provided for each channel, so that paralleling of speakers is possible.

For more information, see the Output Connectors and Mode Selection sections.

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Crest Audio CA Series Power Amplifiers

 

Models CA2, CA4, CA6, CA9, CA12, CA18

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Contents OWNER’ S Manual Important Precautions Table of Contents CA2-9 Front View CA12, CA18 Front ViewRear & Side Views Introduction Installation and MountingUnpacking Front Panel Mode Selection Switch Output Connectors Two versions, market dependentSignal Ground Lift Switch Fan Inlet Ports & Filters Internal Configuration and ControlBalanced 1/4 TRS & XLR Input Connectors Input XLR PolarityOperation Connecting Power / Circuit Size RequirementsCooling System and Requirements Connecting Inputs Connecting OutputsParallel Mode Mode SelectionStereo Mode Bridged Mono ModeStereo Mode Connections Way Output Binding Posts Stereo Mode Connections Speakon Output Connectors Parallel Mode Connections Speakon Output ConnectorsTourClass Protection Speaker Protection User PrecautionsRecommended Speaker Cabling Maintenance Service and RepairUser Responsibility Appendices Appendix a Amplifier Specifications Power Bandwidth rated power at 4Ω , 1%THD+NAppendix B CA Block Diagram Channel aAppendix C Wire Gauge Chart Metric Appendix C Wire Gauge Chart Imperial Appendix D Rear Panel Symbols Legend CA18 Binding Post Version Rear View Appendix E CA18 Power Amplifier Special FunctionsCA18 Speakon Version Rear View Choice of touring professionals