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Introduction
Congratulations on your purchase of a new CA Series professional power amplifier, and thank you for your
confidence in Crest Audio products. You are among the growing number of audio professionals who have
made Crest Audio one of the world’s leading suppliers of professional and commercial/industrial audio sys-
tems.
For your safety, please read the Important Precautions section before installing and operating the amplifier.
The Crest Audio CA Series is based on the same advanced circuit topologies that have made Crest ampli-
fiers the choice of touring professionals worldwide. CA Series amplifiers are designed for high operating
efficiency and accurate sonic performance across the full audio bandwidth, even under stressful conditions.
In order to maintain strict quality assurance standards, all CA Series amplifiers are built in Crest’s state-of-
the-art USA manufacturing facility. Internal components are the finest available, and key sub-assemblies are
pre-tested before final assembly. Finally, each amplifier is “burned in” and thoroughly tested (using preci-
sion audio test equipment) before shipping. In addition, all CA Series amplifiers incorporate Crest’s exclu-
sive TourClass protection features to safeguard both internal circuitry and connected loudspeakers.
This proven combination of advanced design, quality construction, and comprehensive circuit protection is
your guarantee of fail-safe reliability. You can depend on consistent, stable performance even when your
CA Series amplifier is subjected to punishing extremes in the most demanding fixed or mobile sound rein-
forcement applications.
Unpacking
Please inspect the amplifier carefully immediately after unpacking. If you find any damage, notify your sup-
plier/dealer immediately. Only the shipper may file a damage claim with the carrier for damage incurred
during shipping. Be sure to save the carton and all packing materials for the carrier’s inspection.
If your packing materials are in good condition, please save them. If you ever need to ship the unit back to
Crest Audio or an authorized service center, you should use only the original factory packing.
Installation and Mounting
Four CA Series amplifiers are 2-rack-space units: models CA2, CA4, CA6, and CA9. Models CA12 and
CA18 are 3-rack-spaces high. All mount in standard 19-inch racks. Four front-panel mounting holes are
provided on each amplifier. Rear mounting ears give additional support, and use of rear supports is highly
recommended in all mobile and touring sound systems. Optional rack-mount handles are available.
Crest Audio CA Series Power Amplifiers Page 5
Models CA2, CA4, CA6, CA9, CA12, CA18