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PROFESSIONAL
The Undisputed Leader
CONTRACTOR SERIES
In High Speed
CVA-7400/CVA-7800
Switching Power Supply
Technology
Professional Power Amplifier
Owner's Manual
Sales and Factory Service:
Stewart Audio, Inc.
14407 Cuesta Court
Sonora, CA. 95370
(209) 588-8111 Fax (209) 588-8113
WHEN THE PERFORMANCE DEPENDS ON IT
AMPLIFIERS
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Related Manuals for Stewart Audio CVA-7400
Summary of Contents for Stewart Audio CVA-7400
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Page 1: Switching Power Supply
CONTRACTOR SERIES In High Speed CVA-7400/CVA-7800 Switching Power Supply Technology Professional Power Amplifier Owner’s Manual Sales and Factory Service: Stewart Audio, Inc. 14407 Cuesta Court Sonora, CA. 95370 (209) 588-8111 Fax (209) 588-8113 WHEN THE PERFORMANCE DEPENDS ON IT AMPLIFIERS... -
Page 2: Specifications
Specifications CVA-7800 FTC Power Rating <.1%THD. 35Hz-20kHz 40Wx2@70.7 volts per channel (both channels driven) Frequency Response 35Hz - 20kHz +0dB, -0.5dB Bandwidth +0dB, -3.0dB 35Hz - 20kHz Signal-to-Noise >100dB (A Weighted, 400W@12.5 Input Impedance 20K? Input Sensitivity (400Wx2@12.5 1V(0dBV) Slew Rate <30V/microsecond Damping Factor <200... - Page 3 Input Connectors 3-pin XLRBarrier Strip Output Connectors 6-Gauge, 5-Way Binding Post We at Stewart Audio strive to bring you the finest in professional electronics, and we thank you for your choice, which Voltage Gain 40x (32dB) we see as appreciation for our efforts.
- Page 4 Contents Troubleshooting Reference Chart Introduction ……………………………………….1 Symptom: Recommended Action: No output: Power indicator LED is off Be sure power outlet is “live”. Be sure Contents/For the Record ………………………….2 (Note: there is a normal delay of up power switches are “on”. Check circuit Safety ………………………………………...3 &...
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Page 5: Troubleshooting
Audio at (209) 588-8111 to obtain a Return Authorization (RA) Number and shipping instructions. Once RA Number is obtained, return the unit to Stewart Audio, 14407 Cuesta Court, Sonora, CA. 95370. Do not return any amplifier to Stewart without first obtaining an RA Number. - Page 6 Wiring Inputs in Parallel Do not place the amplifier near heat sources such as radiators, heat Wiring XLR and Barrier Strip in parallel (as throughputs to other registers, stoves, or other appliances that product heat. equipment) requires special consideration when combining balanced and unbalanced lines.
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Page 7: Special Features
Special Features The CVA-7400 and CVA-7800 is the result of many years of experience in Input Wiring the research, development, and manufacturing of amplifiers and other sound equipment. It is a combination of old and new, cutting-edge electronics and The CVA-7400/CVA-7800’s input sections allow the use of the XLR or timeless purity of sound. - Page 8 In-Rush Current Limiting further information, please contact Stewart Audio’s customer service. A breakthrough from Stewart, the CVA-7400 and CVA-7800 unique inrush In a free-standing installation, in which the unit is sitting on a shelf or hard Current limiting circuitry minimizes power drawn from the wall to 8 floors, the rubber feet must be mounted to the bottom of the amplifier.
- Page 9 Stewart Amplifier, it is almost as though power is fed directly from the wall to the speaker with the amplifier acting only as a “valve” in-between to control The Stewart Audio CVA-7400/CVA-7800 occupies one standard rack space its flow. The power supply’s remarkable efficiency at converting energy from and is only 15”...
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Page 10: Front Panel
“through” connection to feed additional amplifiers or other equipment). which illuminates upon turn. Note: Upon installation of the CVA-7400/CVA-7800, there will be a turn-on delay of up to one minute after AC power is applied to the amplifier. This is 5-Way Binding Post Output Connectors a result of the initialization sequence performed by the amplifier’s...
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