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Stewart Audio CVA-7400, Owner'S Manual

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       PROFESSIONAL 

CONTRACTOR SERIES 
    CVA-7400/CVA-7800   

   Professional Power Amplifier 

  Owner’s Manual 

 
 

            

 

WHEN THE  PERFORMANCE DEPENDS ON IT 

AMPLIFIERS 

The Undisputed Leader 

In High Speed 

Switching Power Supply 

Technology 

 
 

 

 
 
 

Sales and Factory Service: 

Stewart Audio, Inc. 

14407 Cuesta Court 

Sonora, CA. 95370 

(209) 588-8111 Fax (209) 588-8113 

 

Summary of Contents for CVA-7400

Page 1: ...nal Power Amplifier Owner s Manual WHEN THE PERFORMANCE DEPENDS ON IT AMPLIFIERS The Undisputed Leader In High Speed Switching Power Supply Technology Sales and Factory Service Stewart Audio Inc 14407 Cuesta Court Sonora CA 95370 209 588 8111 Fax 209 588 8113 ...

Page 2: ...5 Input Impedance 20K Input Sensitivity 400Wx2 12 5 1V 0dBV Slew Rate 30V microsecond Damping Factor 200 Input Connectors 3 pin XLRBarrier Strip Output Connectors 6 Gauge 5 Way Binding Post Voltage Gain 40x 32dB Power Requirements 1 8 Power 120C AC 3A Power Supply Design High Speed Switching Dimensions Height 1 75 in 4 5cm Width 19 in 48 3 cm Depth 15 3 in 38 9 cm behind front panel 14 8 in 37 6 c...

Page 3: ... minimized in the CVA 7400 and CVA 7800 by innovative circuitry and extraordinary efficiency making installation simpler than ever before We at Stewart Audio strive to bring you the finest in professional electronics and we thank you for your choice which we see as appreciation for our efforts Stewart Audio Inc 14407 Cuesta Court Sonora CA 95370 209 588 8111 Fax 209 588 8113 1 Specifications CVA 7...

Page 4: ...ion on the output Disconnect speaker wires and turn amplifier power switch on If amp stays on the problem is in the output wiring or speakers ___________________________________________________________________ Power indicator on no output from Check input level controls input and one or both channels Output cables input signal and speakers If operating in bridged mode be sure connections are made ...

Page 5: ...AC power 14 Safety Before using your Stewart Audio Inc Power Amplifier please read this Owner s Manual carefully to ensure optimum trouble free performance WARNING TO REDUCE THE RISK OF ELECTRICAL SHOCK DO NOT EXPOSE THIS AMPLIFIER TO RAIN OR MOISTURE DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE DO NOT OPEN THE CABINET REFER SERVICING TO QUALIFIED PERSONNEL ONLY The lighting bolt withi...

Page 6: ...ould not attempt to service the amplifier beyond that described in the operating instructions All other servicing should be referred to qualified service personnel 4 Wiring Inputs in Parallel Wiring XLR and Barrier Strip in parallel as throughputs to other equipment requires special consideration when combining balanced and unbalanced lines Connecting an unbalanced lines described above to any inp...

Page 7: ...dynamics for which they were designed Auto Impedance Optimization The High Frequency Switch Mode Power Supply and amplifier design used in the CVA 7400 CVA 7800 adapts to the demands placed upon the amplifier enabling them to run with maximum efficiency regardless of the load impedance Thermal management problems normally associated with amplifiers of this capacity are therefore greatly reduced Re...

Page 8: ...ponsible for much of the bulk weight and cost of traditional power amplifiers The Stewart High Frequency Switch Mode Power Supply fully recharges 120 000 times per second 1000 times faster than conventional supplies 6 And out the top In any case be sure that the sides of the rack next to the amplifier are clear of cables power strips etc so that airflow is maintained around the heatsink fins The a...

Page 9: ...detecting a shorted output even at low program levels increasing reliability under conditions which could cause other amplifiers to fail 7 Installation Mechanical Consideration The Stewart Audio CVA 7400 CVA 7800 occupies one standard rack space and is only 15 deep and weighs just 10 and 11 pounds respectively making it easier to install and transport than almost any other comparable amplifier Sti...

Page 10: ...le on the front panel of the amplifier They operate in conventional fashion I e full clockwise maximum level 8 Rear Panel XLR Inputs Each channel has a female XLR balanced input connector which may also be used with unbalanced lines See Input Wiring in the section on Installation page 12 for more details Note the XLR input is wired in parallel with the Barrier Strip input so that either may be use...

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