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PoE Series Audio Amplifiers Operations Manual Rev E 

Page 2 

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Table of Contents

 

1.

 

Important safety instructions 

1.

 

Please read carefully prior to product installation or operation. 

2.

 

Read these instructions. 

3.

 

Keep these instructions. 

4.

 

Heed all warnings. 

5.

 

Follow all instructions. 

6.

 

Do not use this apparatus near water. 

7.

 

Clean only with dry cloth. 

8.

 

Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus 
(including amplifiers) that produce heat. 

2.

 

Approvals 

This equipment has been tested and found to be compliant with the limits for Class A Digital device 
pursuant to part 15 of the FCC rules.  It has also been tested to the requirements of UL Standard 2043 
and is plenum rated. 

3.

 

Warnings 

3.1.

 

Explanation of warning symbols 

3.1.1.

 

The lightning 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 magnitude to constitute 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.

 

Speaker output hazard 

Power amplifiers are capable of producing hazardous output voltages, especially constant voltage 
amplifiers. To avoid electrical shock, do not touch any exposed speaker wiring while the amplifier is 
operating.  External wiring connected to the speaker terminals shall be installed by a qualified person. 
Do not connect or disconnect speaker wires while the mains power is on.  Do not connect speaker wires 
together or to ground as this may result in permanent damage to your amplifier. 

3.3.2.

 

Radio interference 

This product has been tested and complies with the EMC directive, and with FCC part 15 Class A. If this 
product is not used in accordance with these operating instructions, it may cause interference with to 
other equipment, such as radio and television receivers. 

3.3.3.

 

Speaker damage 

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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