Filter
Top Products
Maintenance
A CA Series amplifier requires no routine maintenance other than occasional cleaning or replacement of the
fan intake filters on the rear of the amplifier. (This operation does not require any tools). Filters must be
kept clear and clean to ensure proper ventilation through the unit. If the amplifier is used in an extremely
dusty or smoky environment, the filter should be cleaned or changed frequently and the unit should be peri-
odically “blown free” (using compressed air) of any foreign matter that may penetrated through the filter.
Users will not need to make any internal adjustments to the amplifier during its lifetime. There are no user-
serviceable parts or adjustments that require opening the power amplifier. Cover removal exposes the risk of
shock, so refer all servicing to qualified service technicians authorized by Crest Audio.
User Responsibility
Your CA Series amplifier is very powerful and can be potentially dangerous to loudspeakers and operators
alike. It is your responsibility to read the section titled “Important Precautions” and make sure that the
amplifier is installed, wired, and operated properly as instructed in this manual. Many loudspeakers can be
easily damaged or destroyed by overpowering, especially with the high power available from a bridged
amplifier. Read the section on Speaker Protection and always be aware of the speaker’s continuous and peak
power capabilities. Crest Audio is not responsible for damage to loudspeakers for any reason.
Service and Repair
In the unlikely event that your amplifier develops a problem, it must be returned to an authorized distributor,
service center or shipped directly to our factory. To obtain service, contact your nearest Crest Audio Service
Center, Distributor, Dealer, or any of the worldwide Crest Audio offices. For contact information, reach
Crest Audio Inc. Customer Service directly at: TEL. 201.909.8700 (USA) Fax. 201.909.8744 (USA).
Because of the complexity of the design and the risk of electrical shock, all repairs should be attempted only
by qualified technical personnel. If the unit needs to be shipped back to the factory, it must be sent in its
original carton. If improperly packed, your amplifier may be damaged.
For those with Internet access, please visit the Crest Audio website at: http://www.crestaudio.com
Page 16 Crest Audio CA Series Power Amplifiers
Models CA2, CA4, CA6, CA9, CA12, CA18