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Table of Contents
Related Manuals for Crest Audio CD Series
Summary of Contents for Crest Audio CD Series
- Page 1 CD Power Amplifier Owner’s Manual...
- Page 2 Intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the lit- erature accompanying the product.
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS WARNING: When using electrical products, basic cautions should always be followed, including the following: Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any of the ventilation openings. -
Page 4: Important Precautions
important precautions Save the carton and packing materials! Should you ever need to ship the unit, use only the original factory packing. For replacement packaging,call Crest Audio’ s Customer Service Department directly. Read all documentation before operating your equipment. Retain all documentation for future reference. -
Page 5: Table Of Contents
how to use this manual introduction installation unpacking mounting cooling and ventilation powering maintenance features overview front panel rear panel operation modes stereo parallel bridged connections p.17 input output safety p.21 tourclass protection precautions user responsibility service and support support contact us registration specifications... -
Page 6: How To Use This Manual
how to use this manual conventions terms official Crest Audio features and each indicator or control on the amplifier will appear as: terms actions specific actions or selections the user can execute will appear as: actions tasks are broken down into steps warnings Procedures not to attempt. -
Page 7: Introduction
A traditional linear power supply is used in the CD Series. Because of the amplifier section’ s efficiency, (approx 80%) the transformer does not need to be as big or as heavy.This gives the CD Series an advantage in deliver- ing more power in a more compact package. -
Page 9: Installation
what to do with the shipping carton proper rack-mounting technique keeping the amplifier cooled required line voltages routine maintenance practices installation unpacking mounting cooling and ventilation powering maintenance p. 5... -
Page 10: Mounting
All CD Series amplifiers mount in standard 19-inch racks and occupy two rack spaces. 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. -
Page 11: Mounting
cooling and ventilation CD amplifiers use a forced air cooling system to maintain a low, even operating tem- perature. Air is drawn in by a DC fan on the rear panel, flows through the cooling fins and then exhausts through the front panel vent. Heat sink temperature is monitored and controls the variable speed fan. -
Page 13: Features Overview
location of connectors and controls legend of panel symbols features overview front panel rear panel p. 9... - Page 14 features overview CD owner’s manual CD shown 2 3 4 p. 10...
- Page 15 Green LED illuminates when the amp is on to show that the channel is active. Fan Outlet Grill CD Series amplifiers are cooled by a single rear-mounted fan. Cool air flows over the heat sink and exhausts through the front grill. Make sure this outlet remains clear to allow unrestricted airflow.
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Page 16: Rear Panel
features overview rear panel IEC power connector Accepts a standard IEC terminated power cable Breaker Resettable circuit breaker - no fuses are used. Breaker can trip due to a power surge or over-voltage condition. If it trips once, reset it. If it continues to trip, the amplifier may need servicing. -
Page 17: Rear Panel
rear panel Output connections Speakers can be connected via the high current binding posts and the industry-standard Speakon (NL-4) connectors. Binding posts: One pair (Red- hot, Black- ground) per channel. Speakons - One connector for each channel.The Speakon connector for Channel A also contains contacts for Channel B out put as well (see Operation Modes). -
Page 19: Operation Modes
choosing the appropriate mode switching between operation modes special considerations when using bridged mode operation modes stereo parallel bridged p. 15... -
Page 20: Bridged
operation modes mode selection The three-position, recessed Mode Select switch (located on the rear panel) configures the amplifier for Stereo, Parallel or Bridged mode. Amplifiers are factory-configured for Stereo mode. Shut the amp off before changing modes. stereo In Stereo mode, both channels operate independently, with their input atten- uators controlling their respective levels.Signal at Channel A’s input produces output at Channel A’s output,while signal at Channel B’... -
Page 21: Input
proper wiring schemes for connectors: speakon correct signal paths: stereo, parallel and bridged connections binding post input XLR 1/4” TRS Combi output Binding Posts Speakons p. 17... -
Page 22: Stereo Parallel
connections inputs CD amplifiers are configured standard with pin 2 hot on female TRS pinouts outputs Speakers are connected using the high-current five-way binding posts, speakon connectors, or both. stereo/parallel A and B channel Speaker + to PIN 1+ Speaker - to PIN 1- A channel also has B channel + to PIN 2+ B channel - to PIN 2 -... -
Page 23: Stereo Mode
connections stereo mode five-way binding post connectors parallel mode five-way binding post connectors bridged mono mode five-way binding post connectors p. 19... -
Page 24: Output
connections stereo mode speakon output connectors Speaker + to PIN 1 + Speaker - to PIN 1 - The Channel A Speakon has the signal from channel B present on PIN 2- and Pin 2 +. This is handy in situations where the output is dri- ving bi-amped monitors. -
Page 25: Safety
the owner’s role in amplifier safety protecting your speakers description of TourClass protection features safety user responsibility speaker protection TourClass p. 21... -
Page 26: Tourclass Protection
Your CD Series amplifier is very powerful and can be potentially dangerous to loud- speakers and operators alike. It is your responsibility to read see the inside-front cover ) and make sure that the amplifier is installed, wired, and operated properly as instructed in this manual. -
Page 27: Tourclass Protection
TourClass protection ® Just like Crest Audio’s highly acclaimed Pro series amps, CD series amps incorporate TourClass protection features. Derived from Crest Audio’s extensive experience with the world’s largest sound rental companies, the TourClass group of circuits sets the industry standard for assured protection of internal amplifier circuits and all connected loads. -
Page 29: Service And Support
when to get support ways to contact Crest Audio service and support support contact us p. 25... - Page 30 service and support support 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.
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Page 31: Specifications
CD Series 1000 Ω Ω Ω Ω Ω 1kHZ, 0.4%THD+N Ω 1/8 power, 4 Ω 1/3 power, 4 Ω idle 120 1/3 Power, 4 Ω, BTU/HR per channel 1500 +1/-1 +1/-1 +1/-1 +1/-1 Ω Ω 1 kHz 1 kHz specifications... -
Page 32: Block Diagram
block diagram CD owner’s manual p. 28... -
Page 33: Optional Handle Installation
The CD amplifiers can be outfitted with optional handles.This option requires (2) CD series handles (P/N C32000010) and (4) #8-32 1/2” undercut flat head screws (P/N C38000008).You may order these from your dealer or directly from Crest Audio. -
Page 34: Wire Gauge
wire gauge stranded cable length meters meters meters meters p. 30 wire gauge load load 2.9% 5.6% 1.74 0.75 1.16 0.58 1.16 0.35 0.70 0.22 0.44 4.3% 8.2% 0.75 1.45 0.87 1.74 0.55 1.09 0.37 0.73 8.24% 5.5% 0.75 10.8 1.74 1.09 1.74... - Page 35 0.81% feet 0.51 0.32 0.20 0.128 1.61% feet 1.02 0.64 0.40 0.25 6.2% feet 1.60 1.01 0.60 11.9% feet 1.20 wire gauge 1.61% 3.2% 1.02 0.64 1.28 0.40 0.80 0.25 0.51 3.2% 6.2% 1.28 0.80 1.60 0.51 1.01 11.9% 14.6 1.20 14.6 17.8...
- Page 36 http://www.crestaudio.com CD Owner's Manual Version 1.1 10/14/04 P/N 80305114...