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Important Safety Instructions 

 
Before using your Stewart Audio Inc. Power Amplifier, please read this 

Owner’s Manual 

carefully to ensure optimum trouble-free perfor-

mance. 
 

WARNING: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT EX-

POSE 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 within arrowhead symbol, within an 
equilateral triangle, is intended to alert the user to the 
presence of un-insulated “dangerous voltage” within 
the product’s enclosure that may be of sufficient mag-
nitude to constitute a risk of electrical shock to person. 
 
The exclamation point within an equilateral triangle, is 
intended to alert the user to the presence of important 
operating and maintenance (servicing) instruction in the 
literature accompanying the appliance. 
 
 

Important Safety Instruction – Please Read Prior to Product  
Installation. 

 

1.  Installation should be performed by a trained and licensed professional to 

insure safe and lasting operation. 

 
2.  All of the safety and operating instructions should be read before the am-

plifier is installed or operated. Retain these instructions for future refer-
ence. All instructions should be followed; all warnings on the amplifier 
and in the operating instructions should be adhered to.   

 

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, 
DO NOT REMOVE COVER (OR BACK). NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING TO 
QUALIFIED SERVICE PERSONNEL.

3.  The amplifier should be situated so that its location and position does not 

interfere with its proper ventilation. For example, the amplifier must not 
be placed on a rug, bed, sofa or similar surface that impedes airflow 
across the chassis. Airflow through the ventilation openings 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 other appliances that produce heat. 

 
6.  The amplifier should only be connected to 120 VAC, 60 Hz power supply. 

Do not defeat the ground or polarization of the power plug. 

 
7.  Route power cord and other cables so that they are not likely to be 

walked on, tripped over or stressed. Pay particular attention to condition 
of cords and cables at plugs and at the point where they exit the amplifi-
er. To prevent risk of fire or injury, damaged cords and cables should be 
replaced immediately. 

 
8.  Clean the amplifier with a clean, damp cloth. Do not use solvents or abra-

sive cleaners. Never pour any liquid on the amplifier. 

 
9.  When left unused for a long period of time, the power cord should be 

unplugged form the outlet. 

 
10.  Damaged Amplifiers requiring service should be repaired by a qualified 

service technician when: 

 

a. 

The power cord or AC plug has been damaged. 

b.  Objects have fallen, or liquid has spilled into the unit. 
c. 

The amplifier has been exposed to rain or other moisture. 

d.  The amplifier does not appear to operate normally or exhibits 

a marked change in performance. 

e.  The amplifier has been dropped or the enclosure  
 damaged. 

 

11. The user should not attempt to service the amplifier beyond that de-

scribed in the operating instructions. All other servicing should be referred 
to qualified service personnel. 

3

 

Содержание AV25-2 NET Series

Страница 1: ...AV25 2 NET Series Owner s Manual December 2014 www stewartaudio com AV25 2 NET AV25 2 NET ...

Страница 2: ...interfere with its proper ventilation For example the amplifier must not be placed on a rug bed sofa or similar surface that impedes airflow across the chassis Airflow through the ventilation openings 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 i...

Страница 3: ...s Made in the USA 1 2 Using this Manual In order to obtain maximum performance from your AV Series Amplifi er please take time to read this brief owner s manual and carefully fol low the guidelines for connection and operation This manual provides you with the information necessary to safely in stall and operate your new AV Series amplifier in the most common scenarios If you find yourself requiri...

Страница 4: ... 2 NET series has mounting holes on the top of the unit which can be used with the AV Pole bracket availa ble from Stewart Audio Part Number AV Pole 2 2 1 Universal Mount Installation The AV25 2 NET series also has a universal bracket available which al lows 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 or the side...

Страница 5: ...tor for each input This connector will accept both balanced or unbalanced connections however some modifications must be made for an unbal anced connection See the next two sections for instructions on con necting your amplifier to its input source 2 4 1 Balanced Connections When using a balanced input source and connector you must ensure that the hot cold and ground pins of the connector are matc...

Страница 6: ... ste reo inputs Either one side must be selected from the ste reo source or an overload protected Y cable must be used to sum them to mono It is highly recommended that you purchase the pre wired connectors mentioned on the next page Damage to source equipment can result from the Pre wired unbalanced connectors are available for purchase from Stew art Audio These will allow for a quicker installat...

Страница 7: ...l Block Connector Rear of AV25 2 NET Channel 2 Channel 1 3 Operation 3 1 Operating Precautions 1 Before use your amplifier must be configure for proper operation including input and output wiring hookup Improper wiring can re sult in damage to equipment or potentially harm to the operator Consult section 2 for setup instructions 2 Tampering with the circuitry or making unauthorized changes is not ...

Страница 8: ...annel 2 Level Knob Line Out Remote Volume Control Signal Present Indicator LED 4 5 9 Channel 1 Level Knob Input Connector Power Indicator LED 11 11 12 12 10 10 9 11 11 12 12 10 10 Clip Indicator LEDs Power Connector Speaker Out Connector AV25 2 NET NETWORK 2 Speaker 1 PWR 2 LINE OUT 1 SIG PWR 1 1 2 3 1 2 3 Network Connector Line Out Signal Present Indicator LED 4 Power Indicator LED 5 6 4 5 6 Powe...

Страница 9: ...ncludes selectable priority switching which allows either the network or local input to override the other in put depending on the switch setting The switch position should be set to the priority input the signal that will interrupt the normal program When audio is detected on that priority input the amplifier will mute the signal from the other normal input After an approximately 3 5 sec ond peri...

Страница 10: ...address from the list You can rename this using the device configuration 3 4 Remote Volume Control NET Models Only AV25 2 NET amplifiers can have their volume remotely controlled or muted via the Euro Block input on the rear of the amplifier The remote volume control allows the units volume to be controlled through the use of an external potentiometer which can be located wherever con venient for ...

Страница 11: ...cause a thermal shutdown Problem Output sound is distorted or cracking Procedure Check all cables for damage or loose connections and re duce the gain on the input signal at the mixer or preamp level Replace the cables and loudspeakers temporarily to see if this resolves the problem If problem still exists contact your Authorized Dealer for ser vice 5Technical Specifications Maximum Output 30Hz 20...

Страница 12: ...e 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 6 2 1 Return Authorization Number All returns to the factory for service must be accompanied by a Return Authorization RA number One can be obtained by contacting Stewart Audio at 209 588 8111 or via e mail at support ste...

Страница 13: ...Estimate Approval An estimate for all non warranty repairs will be provided to the custom er once the unit has been shipped to the factory The customer is re sponsible to approve this estimate within 7 days If the repairs are not approved within 14 days Stewart Audio reserves the right to consider the unit scrap and may discard it 6 2 5 Payment of Non Warranty Repairs Payment for non warranty repa...

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