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PoE Series Audio Amplifiers Operations Manual Rev E 

Page 13 

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Table of Contents

 

10.

 

Return Procedure 

All returns to the factory for service or credit must be accompanied by a Return Authorization (RA) 
number. All Product(s) included on the Return Authorization (RA) must be received by Stewart Audio 
within 30 days of issuance of the Return Authorization (RA) number. Product(s) not received within the 
30 day window void the Return Authorization (RA). Customers may re-apply for a Return Authorization 
(RA) number which may be subject to administrative fees. Return Authorization (RA) numbers are 
obtained by contacting Stewart Audio at 209-588-8111 or via e-mail at 

[email protected].

 

NOTE: Any defective products received without an RA number will be returned to sender at their 
expense.  

If Stewart Audio is unable to contact the sender in 14 days, the merchandise will be considered scrap 
and may be disposed of. 

10.1.

 

Shipment Instructions 

 

If Stewart Audio requests that you ship the defective product back to their service center, please 
refer to the guide below. To ensure prompt warranty service, be sure to follow all instructions. 

 

Return Authorization (RA) is required for product being sent to the factory for service.  

 

See packing instructions in 

Section 9.2.

 

 

Ship the defective product using a method which provides for order tracking or order 
confirmation.  The service center is located at the following address: 

Stewart Audio 
14335 Cuesta Court Suite C 
Sonora, CA 95370 

 

Use a bold black marker and write the RA number on three sides of the box. 

 

Record the RMA number for future reference. The RA number can be used to check the repair 
status. 

10.2.

 

Packaging Instructions 

Should Stewart Audio request that you ship your product to their service center, these instructions must 
be followed in order to ensure safe delivery. If they are not followed, Stewart Audio assumes no 
responsibility for damaged goods and/or accessories that are sent with your unit. 

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.

 

You will be advised during the RA process what accessories should be included with the amplifier 
(power supplies, connectors, cords, etc.). This is dependent on the failure assessment. 

3.

 

When shipping your amplifier, it is important that it has adequate protection. We recommend 
you use the original packing material when returning the product for repair. If you do not have 
the original box, see number 4. 

4.

 

If you provide your own shipping pack, use materials adequate to prevent damage during transit. 

Securely seal the package with an adequate carton sealing tape. 

Do not use light boxes or “peanuts”.  

NOTE: Damage caused by poor packaging will not be covered under warranty.

 

Summary of Contents for AV20-2-LZ-D

Page 1: ... Ethernet PoE Series Audio Amplifiers User Manual AV8 2 LZ D 2 Channel 16W Dante PoE Amplifier AV20 2 LZ D 2 Channel 40W Dante PoE Amplifier CVA16 1 CV D Single Channel 40W Dante PoE Amplifier CVA40 1 CV D Single Channel 40W Dante PoE Amplifier AV8 2 LZ D CVA16 1 CV D AV20 2 LZ D CVA40 1 CV D ...

Page 2: ...titute a risk of electrical shock to person 3 1 2 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 3 2 Warnings WARNING TO REDUCE THE RISK OF ELECTRICAL SHOCK DO NOT EXPOSE THIS AMPLIFIER TO RAIN OR MOISTURE 3 3 User responsibility 3 3 1 Speake...

Page 3: ...r destroyed if overpowered Always check the loudspeaker s continuous and peak power ratings to prevent such an occurrence Do not rely solely on the amplifier s volume control to reduce output power to a level safe for the loudspeakers 3 3 4 Maintenance Clean regularly with a soft cloth to remove dust and debris ...

Page 4: ...lity 2 5 Welcome 5 5 1 Features 5 5 2 Unpacking and visual inspection 5 5 3 Installation and setup 5 6 Rear panel Connections and Indicators 6 7 Specifications 9 8 Troubleshooting 10 8 1 Considerations when using PoE amplifiers 11 9 Warranty and repair information 12 9 1 Warranty summary 12 9 2 Eligibility requirements 12 9 3 Non warranty repairs 12 10 Return procedure 13 10 1 Shipment instruction...

Page 5: ...uct is carefully tested and inspected before leaving the factory and should arrive in perfect condition If any damage is discovered please notify the shipping carrier immediately Save the packing materials for the carrier s inspection and for any future shipping 5 3 Installation and setup 5 3 1 Cooling and ventilation Due to the high efficiency of these PoE amplifiers the heat generated is minimal...

Page 6: ...h If using a mid span PoE injector connect this port to the Power Data port on the injector and connect the Data port of the injector to the 100 1000BaseT switch AV8 2 LZ D and CVA16 1 CV D models 1 Dante Audio and DC Power Input Connect a Cat5e 6 cable between this RJ 45 jack and a PoE port 60W port power on the 100 1000BaseT network switch If using a mid span PoE injector connect this port to th...

Page 7: ...nt flow in constant voltage systems and speakers is much lower than in 4 8Ω systems higher gauge thinner diameter wire can be used Connect the loudspeaker wires to either the 70V or 100V pair of terminals observing proper polarity Care should be used when working around the speaker terminals Although not officially recognized as a shock hazard in the UL60065 Safety Requirements touching these term...

Page 8: ...TE Class 2 wiring must be used on the speaker terminals to comply with UL requirements CAUTION The speaker terminals represent a shock hazard as they carry 70 7V and 100V when driven with an audio signal Disconnect the amplifier from the AC power source when working on these terminals ...

Page 9: ... 1 CV D 90dB 88dB Channel to Channel Separation Crosstalk 85dB Noise floor AV8 2 LZ D and AV20 2 LZ D CVA16 1 CV D and CVA40 1 CV D 110dBV 95dBV Amplifier Class D Input Connector Dante Audio and DC RJ 45 Output Connector 5mm Euroblock LED Indicator Power Construction Aluminum Cooling Convection no fan Dimensions 1 2 H x 6 70 W x 4 31 D 31 x 170 x 110mm Weight AV8 2 LZ D and AV20 2 LZ D CVA16 1 CV ...

Page 10: ...coming from the transmitter A green checkmark at the intersection of the transmitter and PoE amplifier receiver in the Network View screen indicates that a Dante subscription has been established In the Device View screen for the PoE amplifier the speaker symbol should be green not gray See the Dante Help for more detailed information The amplifier cycles on and off over a several second period Ch...

Page 11: ...larger and more reliable Dante networks While Gigabit switches are recommended 100Mbps switches may be used in limited scenarios For channel counts of 32 or more Gigabit switches are essential QoS is required when using Dante in networks that have 100Mbps devices QoS is also recommended for Gigabit switches on networks that share data with services other than Dante For lower channel count 32 appli...

Page 12: ... submitted by the original purchaser This warranty is only valid in the country in which the amplifier was purchased 9 2 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 misus...

Page 13: ...duct using a method which provides for order tracking or order confirmation The service center is located at the following address Stewart Audio 14335 Cuesta Court Suite C Sonora CA 95370 Use a bold black marker and write the RA number on three sides of the box Record the RMA number for future reference The RA number can be used to check the repair status 10 2 Packaging Instructions Should Stewart...

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