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5 Technical  Specifications

 

6  Warranty Information 

 

6.1 Warranty  Summary 
 

All Stewart Audio amplifiers and accessories, unless excluded in this 
summary, are covered by a 3-year limited warranty on parts and labor 
from the data of purchase. In order to be eligible for warranty repairs, 
the amplifiers and accessories must have been purchased through an 
authorized Stewart Audio dealer and submitted by the original purchas-
er. This warranty is only valid in the country in which the amplifier was 
purchased. 
 

6.1.1 Eligibility Requirements. 

Stewart Audio warrants against all malfunctions which come as a result 
of component or manufacturer defect. The amplifier is also covered 
from all failures which arise during the warranty period (3 years from 
date of purchase) that are not a result of misuse. The following actions 
will void your warranty: 
 



The power cord or AC plug has been damaged through misuse. 



The amplifier has been exposed to moisture or extreme tempera-
tures. 



The amplifier has been dropped, items have been dropped on the 
amplifier, or the enclosure has been damaged. 



The amplifier has been opened by the operator. 



The amplifier was improperly packaged when sending to the fac-
tory for repair, resulting in damage. 



Any of the precautions or instructions found in this manual were 
not followed. 

 
Damages resulting to the amplifier which are not covered under this 
warranty can be factory-repaired at cost to the customer. Use the con-
tact information below to initiate the repair process. 
 

6.2 Return Procedure 
 

This section includes the return procedures which must be followed in 
order to prevent processing delay or cost to the customer. Please read 
the entire section before contacting Stewart Audio for returns. 

Maximum Output 30Hz - 20kHz 

 

CVA-50 

50W @ 100V/70V 

Frequency Response (+0, -3 dB) 

100Hz—20kHz 

Power Ban/- 3dB 

80Hz-30kHz 

THD+N 

<0.1% 

Signal-to-Noise Ratio 

>80dB 

Remote Volume Control 

0-10V DC, 4-pin Block 

Input Sensitivity 

.5V (-3 dBV) 

Standard Voltage Gain 

151X (43dB) @ 70.7V 

Input Impedance (Balance/Unbalanced) 

20k Ohms/10k Ohms 

Sleep, Idle Current Draw, 1/8 Draw 

3.3 / 6.9 / 14.2 Watts 

Class 

Input Connectors 

RJ45, Euro Block 3-pin, 
3.5mm (NET+) 

Output Connectors 

Euro Block 2-pin, 5mm 

Power Supply 

External In-Line 48DVC 

Cooling 

Convection-Cooling 

Controls 

Level 

LED Indicators 

Power, Signal, Clip 

Construction 

Aluminum Chassis 

Plenum Rating 

UL 2043 Approved 

Dimensions 

 

Height 1.25in 

(3.2cm) 

Width 

4.00in (10.2cm) 

Depth 6.00in 

(15.2cm) 

Weight  

1.2 lbs (0.54kg) 

 

 

Stewart Audio reserves the rate to change features and specifications without notice.  

Содержание CVA50-1 NET Series

Страница 1: ...CVA50 1 NET Series Owner s Manual June 2012 www stewartaudio com CVA50 1 NET CVA50 1 NET ...

Страница 2: ... sofa or similar surface that impedes airflow across the chassis Airflow around the unit should be unobstructed 4 This amplifier should not be used near water for example near a bathtub in a wet basement near a swimming pool etc This amplifier is intended to be operated in a controlled indoor environment 5 Do not place the amplifier near heat sources such as radiators heat regis ters stoves or oth...

Страница 3: ...s for connection and operation This manual provides you with the information necessary to safely in stall and operate your new CVA Series amplifier in the most common scenarios If you find yourself requiring additional assistance please feel free to contact your Authorized Dealer or you may contact us di rectly using the contact information provided on the back of this manu al Important Safety Ins...

Страница 4: ... which can be used with the AV Pole bracket available from Stewart Audio Two screws are included in the kit which will affix the bracket to the top or side of the unit 2 2 1 Universal Mount Installation The CVA Series also has a universal bracket available which allows the unit to be mounted against a wall or under a table Two screws are included in the kit which will affix the bracket to the top ...

Страница 5: ...r for its input connection This connector will accept both balanced or unbalanced connections however some modifications must be made for an unbalanced connection See the next two sections for instruc tions on connecting your amplifier to its input source 2 4 1 Balanced Input Connections When using a balanced input source and connector you must ensure that the hot cold and ground pins of the conne...

Страница 6: ...for error when connecting the CVA Series amplifier to an unbalanced source The summing adapters will properly sum a stereo source for use with the mono input on the rear of the amplifier without causing sound cancellation Part numbers are found below the diagrams 2 5 Output Connections Because of the differences in the way that constant voltage amplifiers work as opposed to a typical 8 ohm setup t...

Страница 7: ... will not be held responsible for damage to your CVA Series amplifier or connected equip ment if the instructions in this manual are not followed NOTE For additional operating precautions please refer to Important Safety Instructions located on Page 2 2 5 1 Constant Voltage The Euro Block connector on the rear of the amplifier is capable of sup plying output at either 100V or 70V depending on the ...

Страница 8: ...6 Speaker Out Connector CVA50 1 NET COBRANET PRIORITY NET LOC OUTPUT PWR 10V RVC GND MUTE RVC LINE OUT LOCAL IN SIG PWR CLIP LEVEL 100V 70V 1 1 2 3 5 6 7 4 1 Signal Priority Switch 2 CobraNet Connector 3 Channel Level Knob 5 Line Out 6 Remote Volume Control 7 Signal Present Indicator LED 4 Input Connector 8 Power Indicator LED 9 8 10 10 11 11 9 Clip Indicator LEDs 10 10 Power Connector 11 11 Speak...

Страница 9: ...mit the input channels to other Cobra Net devices A No the CVA50 1 NET is designed only to receive audio Q What submap channels do the CVA50 1 NET use A Since the CVA50 1 NET is a 2 channel device only the first two submap channels are valid channels 1 and 2 Data sent on channels 3 8 will be ignored 3 3 2 Using CobraNet Discovery Utility The CobraNet Discovery utility can be downloaded from the Ci...

Страница 10: ...nal If there is no signal detected check signal source and that level controls are set high enough Problem Amplifier overheats and or shuts off Procedure Review section 2 3 on proper cooling procedures Check the clip LED on the rear of the amplifier to see if the signal is overdriv ing the signal light flashes red frequently Overdriving the amplifier for extended periods of time can cause a therma...

Страница 11: ...nding to the fac tory for repair resulting in damage Any of the precautions or instructions found in this manual were not followed Damages resulting to the amplifier which are not covered under this warranty can be factory repaired at cost to the customer Use the con tact information below to initiate the repair process 6 2 Return Procedure This section includes the return procedures which must be...

Страница 12: ...si bility for damaged goods and or accessories that are sent with your unit 6 2 3 Packaging Instructions cont 1 Please write the RA number on three sides of the box Include the Stewart Audio RA number inside the box and a brief description of the problem 2 Do not ship any accessories manuals cords hardware etc with your unit These items are not needed to service your product Stewart Audio will not...

Страница 13: ...mbers shown are Stewart Audio Part Numbers To purchase these accessories or to see the full Stewart Audio product lineup visit us at www stewartaudio com Mounting Brackets AV POLE Pole mount bracket for AV Series amplifiers AV BRACKET Universal mounting bracket for AV Series amplifiers Connection Adapters ADPT RCA Mono Female RCA to male Euroblock ADPT SUMRCA Stereo Female RCA to male Euroblock AD...

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