Extron electronics NetPA 502 AT, NetPA 1001-70V AT User Manual

User Guide

PRELIMINARY

NetPA AT Series

NetPA 502 AT and NetPA 1001-70V AT
Networked Audio Power Amplifiers with Dante™

Audio Power Amplifiers

68-2649-01 Rev. Ax3

05 15

Safety Instructions

Safety Instructions • English

WARNING: This symbol, , when used on the product, is intended to

alert the user of the presence of uninsulated dangerous voltage within the
product’s enclosure that may present a risk of electric shock.

ATTENTION: This symbol, , when used on the product, is intended

to alert the user of important operating and maintenance (servicing)
instructions in the literature provided with the equipment.

For information on safety guidelines, regulatory compliances, EMI/EMF
compatibility, accessibility, and related topics, see the Extron Safety and
Regulatory Compliance Guide, part number 68-290-01, on the Extron website,

www.extron.com.

Instructions de sécurité • Français

AVERTISSEMENT : Ce pictogramme, , lorsqu’il est utilisé sur le

produit, signale à l’utilisateur la présence à l’intérieur du boîtier du produit
d’une tension électrique dangereuse susceptible de provoquer un choc
électrique.

ATTENTION : Ce pictogramme, , lorsqu’il est utilisé sur le produit,

signale à l’utilisateur des instructions d’utilisation ou de maintenance
importantes qui se trouvent dans la documentation fournie avec le
matériel.

Pour en savoir plus sur les règles de sécurité, la conformité à la réglementation,
la compatibilité EMI/EMF, l’accessibilité, et autres sujets connexes, lisez les
informations de sécurité et de conformité Extron, réf. 68-290-01, sur le site
Extron, www.extron.com.

Sicherheitsanweisungen • Deutsch

WARNUNG: Dieses Symbol auf dem Produkt soll den Benutzer

darauf aufmerksam machen, dass im Inneren des Gehäuses dieses
Produktes gefährliche Spannungen herrschen, die nicht isoliert sind
und die einen elektrischen Schlag verursachen können.

Инструкция по технике безопасности • Русский

ПРЕДУПРЕЖДЕНИЕ: Данный символ, , если указан

на продукте, предупреждает пользователя о наличии
неизолированного опасного напряжения внутри корпуса
продукта, которое может привести к поражению
электрическим током.

ВНИМАНИЕ: Данный символ, , если указан на продукте,

предупреждает пользователя о наличии важных инструкций
по эксплуатации и обслуживанию в руководстве,
прилагаемом к данному оборудованию.

Для получения информации о правилах техники безопасности,
соблюдении нормативных требований, электромагнитной
совместимости (ЭМП/ЭДС), возможности доступа и других
вопросах см. руководство по безопасности и соблюдению
нормативных требований Extron на сайте Extron: www.extron.com,
номер по каталогу - 68-290-01.

Chinese Simplified（简体中文）

警告： 产品上的这个标志意在警告用户该产品机壳内有暴露的危险 电压，

有触电危险。

注意： 产品上的这个标志意在提示用户设备随附的用户手册中有

重要的操作和维护(维修）说明。

关于我们产品的安全指南、遵循的规范、EMI/EMF 的兼容性、无障碍
使用的特性等相关内容，敬请访问 Extron 网站 www.extron.com，参见
Extron 安全规范指南，产品编号 68-290-01。

Chinese Traditional（ )

警告: 若產品上使用此符 號，是為了提醒使用者，產品機殼內存在著

可能會導致觸電之風險的未絕緣危險電壓。

VORSICHT: Dieses Symbol auf dem Produkt soll dem Benutzer in der

im Lieferumfang enthaltenen Dokumentation besonders wichtige Hinweise
zur Bedienung und Wartung (Instandhaltung) geben.

Weitere Informationen über die Sicherheitsrichtlinien, Produkthandhabung,
EMI/EMF-Kompatibilität, Zugänglichkeit und verwandte Themen finden Sie in
den Extron-Richtlinien für Sicherheit und Handhabung (Artikelnummer
68-290-01) auf der Extron-Website, www.extron.com.

Instrucciones de seguridad • Español

ADVERTENCIA: Este símbolo, , cuando se utiliza en el producto,

avisa al usuario de la presencia de voltaje peligroso sin aislar dentro del
producto, lo que puede representar un riesgo de descarga eléctrica.

ATENCIÓN: Este símbolo, , cuando se utiliza en el producto, avisa

al usuario de la presencia de importantes instrucciones de uso y
mantenimiento recogidas en la documentación proporcionada con el
equipo.

Para obtener información sobre directrices de seguridad, cumplimiento
de normativas, compatibilidad electromagnética, accesibilidad y temas
relacionados, consulte la Guía de cumplimiento de normativas y seguridad de
Extron, referencia 68-290-01, en el sitio Web de Extron, www.extron.com.

注意 若產品上使用此符號，是為了提醒使用者，設備隨附的用戶手冊中有重

要的操作和維護（維修）説明。

有關安全性指導方針、法規遵守、EMI/EMF 相容性、存取範圍和相關主題的詳
細資訊，請瀏覽 Extron 網站：www.extron.com，然後參閱《Extron 安全性
與法規遵守手冊》，準則編號 68-290-01。

Japanese

警告: この記号 が製品上に表示されている場合は、筐体内に絶縁されて

いない高電圧が流れ、感電の危険があることを示しています。

注意: この記号 が製品上に表示されている場合は、本機の取扱説明書

に 記載さ れて いる重 要な操 作 と保 守 ( 整 備)の 指 示につ いてユーザ ー の 注
意を喚起するものです。

安全上のご注意、法規厳守、EMI/EMF適合性、その他の関連項目に
つ い て は 、エ ク スト ロン の ウ ェ ブ サ イト www.extron.comよ り 『 Extron Safety
and Regulatory Compliance Guide』 ( P/N 68-290-01) をご覧ください。

Korean

경고: 이 기호 가 제품에 사용될 경우, 제품의 인클로저 내에 있는

접지되지 않은 위험한 전류로 인해 사용자가 감전될 위험이 있음을
경고합니다.

주의: 이 기호 가 제품에 사용될 경우, 장비와 함께 제공된 책자에 나와

있는 주요 운영 및 유지보수(정비) 지침을 경고합니다.

안전 가이드라인, 규제 준수, EMI/EMF 호환성, 접근성, 그리고 관련 항목에
대한 자세한 내용은 Extron 웹 사이트(www.extron.com)의 Extron 안전 및
규제 준수 안내서, 68-290-01 조항을 참조하십시오.

FCC Class B Notice

NOTE: This device complies with part 15 of the FCC rules. Operation is subject to the

This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part15 of the FCC rules. These limits provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. There is no
guarantee that interference will not occur. If this equipment does cause interference to radio
or television reception, which can be determined by turning the equipment off and on, you
are encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is

• Consult the dealer or an experienced radio/TV technician for help.

In order to maintain compliance with FCC regulations, shielded cables must be used with
this equipment. Operation with non-approved equipment or unshielded cables is likely to
result in interference to radio and TV reception. The user is cautioned that changes and
modifications made to the equipment without the approval of the manufacturer could void
the user’s authority to operate this equipment.

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

following two conditions: (1) This device may not cause harmful interference, and (2)
This device must accept any interference received, including interference that may
cause undesired operation.

connected.

ATTENTION:

• This equipment complies with FCC radiation exposure limits set forth for an

uncontrolled environment. This equipment should be installed and operated with

NOTE: For more information on safety guidelines, regulatory compliances, EMI/

minimum distance 20 cm (7.9 inches) between the radiator and your body.

• Cet équipement est conforme aux limites de radiation de la FCC établies pour un

environnement non géré. Il doit être installé et contrôlé à une distance minimale de
20 cm (7,87 inches) entre le radiateur et votre corps.

EMF compatibility, accessibility, and related topics see the “Extron Safety and

Regulatory Compliance Guide” on the Extron website.

Conventions Used in this Guide

Notifications

The following notifications are used in this guide:

WARNING: Potential risk of severe injury or death.

AVERTISSEMENT : Risque potentiel de blessure grave ou de mort.

ATTENTION:

• Risk of property damage.

• Risque de dommages matériels.

NOTE: A note draws attention to important information.

TIP: A tip provides a suggestion to make working with the application easier.

Specifications Availability

Product specifications are available on the Extron website, www.extron.com.

© 2015 Extron Electronics. All rights reserved.

Trademarks

All trademarks mentioned in this guide are the properties of their respective owners.

The following registered trademarks®, registered service marks
RGBSystems, Inc. or Extron Electronics:

Registered Trademarks

AVTrac, Cable Cubby, CrossPoint, eBUS, EDID Manager, EDID Minder, Extron, Flat Field, GlobalViewer, Hideaway, Inline, IPIntercom, IPLink, KeyMinder,
LockIt, MediaLink, PlenumVault, PoleVault, PowerCage, Pure3, Quantum, SoundField, SpeedMount, SpeedSwitch, SystemINTEGRATOR, TeamWork,
TouchLink, V-Lock, VersaTools, VN-Matrix, VoiceLift, WallVault, WindoWall, XTP, and XTP Systems

Registered Service Mark

AAP, AFL (Accu-RateFrameLock), ADSP(Advanced Digital Sync Processing), Auto-Image, CableCover, CDRS(ClassDRippleSuppression),
DDSP(Digital Display Sync Processing), DMI (DynamicMotionInterpolation), DriverConfigurator, DSPConfigurator, DSVP(Digital Sync Validation
Processing), DTP, eLink, EQIP, FastBite, FlexOS, FOXBOX, Global Configurator, IP Intercom HelpDesk, LinkLicense, MAAP, MicroDigital, ProDSP,
QS-FPC(QuickSwitch Front Panel Controller), Scope-Trigger, ShareLink, SIS (Simple Instruction Set), Skew-Free, SpeedNav, Triple-Action Switching,
WebShare. XTRA, ZipCaddy, ZipClip

(SM)

: S3 Service Support Solutions

Trademarks (™

(SM)

, and trademarks

(®)

)

(TM)

are the property of

Contents

Introduction ................................................... 1

About this Guide ................................................. 1

Overview ............................................................ 1

Features ............................................................. 2

Application Example ........................................... 4

Hardware Installation ...................................5

Mounting the NetPA AT ...................................... 5

Hardware Configuration ...................................... 5

Rear Panel Features and Connections ................ 6

Front Panel Indicators ......................................... 9

Software Installation .................................. 10

NetPAAT Software ........................................... 10

Software Installation Overview .......................... 10

Software Download and Installation .................. 11

Dante Controller for Windows ....................... 11

Dante Configuration and Operation ......... 13

NetPAAT Bus ................................................... 13

Managing Network Traffic ................................. 13

Creating a Physical Dante Network ................... 14

Starting Dante Controller .................................. 15

Device Name ................................................ 16

Dante Controller Naming Conventions .......... 16

Rename the NetPAAT ................................. 16

Renaming an Input ....................................... 19

Selecting Inputs and Outputs for Dante ............ 21

Routing Signals using Dante ......................... 21

Dante Operation ............................................... 22

Select Devices .............................................. 22

Route Inputs and Outputs............................. 24

Identifying the Physical Device ...................... 25

Setting a Static IP Address (Default DHCP) .. 25

Dante Troubleshooting ...................................... 27

Resetting the NetPA AT .................................... 29

Reference Information ............................... 30

Mountingof theNetPAAT ................................ 30

Tabletop Use ................................................ 30

UL Rack Mounting Guidelines ....................... 30

Rack Shelf Mounting..................................... 31

Under-desk Mounting ................................... 32

Other Mounting Options ............................... 32

Defeatable Auto Power-down Timer ................. 33

6NetPA AT Series User Guide • Contents

Introduction

This section gives an overview of the Extron NetPA AT Series of power amplifiers with Dante.
The models include the NetPA 502 AT and the NetPA 1001-70V AT. Topics include:

• About this Guide

• Overview

• Features

• Application Example

About this Guide

This guide describes the installation and operation of the NetPA 502 AT and NetPA 1001­70V AT power amplifiers. Throughout this guide both models may be referred to collectively
as the NetPA AT.

Overview

The Extron NetPA 502 AT and NetPA 1001-70V AT are half rack 1U, convection cooled
power amplifiers featuring Dante digital audio networking. They deliver two channels of
50 watts into 4 ohms, or a single channel of 100 watts at 70 volts. NetPA amplifiers can
receive audio from Dante-equipped audio processors over a standard local area network,
greatly simplifying the cabling infrastructure for sharing audio across multiple rooms or floors
in a building. In addition to amplifying incoming Dante audio, NetPA amplifiers feature line
level outputs that can simultaneously feed an additional speaker zone or audio system.
They feature an Extron exclusive, highly efficient, advanced Class D amplifier design, plus
patented CDRS™ - Class D Ripple Suppression that provides improved signal fidelity over
conventional Class D amplifiers.

The NetPA 502 AT two channel amplifier delivers 50 watts rms per channel into 4 ohms or
25 watts rms per channel into 8 ohms. The NetPA 502 AT is ideal for amplification of voice
or program content to stereo speakers, or two sets of 8 ohm ceiling speakers in a dual zone
application. The professional grade amplifier also features greater than 90 dB signal-to-noise
ratio and less than 0.1% THD+N.

The NetPA 1001-70V AT mono amplifier delivers 100 watts rms for 70 volt high impedance
speaker systems in voice reinforcement and distributed audio applications. The professional
grade amplifier features greater than 90 dB signal-to-noise ratio and less than 0.1% THD+N.
The NetPA 1001-70V AT also includes a switch selectable, high pass filter that rolls off
frequencies below 80 Hz to prevent saturation of speaker transformers.

Dante enables audio system scalability over a local area network using standard Internet
protocols. Dante technology distributes up to 512x512 audio channels at 24-bit/48 kHz
over a single Gigabit Ethernet link with extremely low latency. Dante-enabled Extron
digital signal processors feature a built-in four-port Gigabit switch that provides direct
interconnection of multiple units to create larger, cost-effective audio matrixes.

NetPA AT Series User Guide • Introduction 1

Features

Setting up a network of Extron Dante-enabled products, including the NetPA amplifiers,
requires Dante Controller software as well as DSP Configurator™ Software. Dante Controller
is used to easily assign an output from a Dante-equipped digital signal processor, such as
the Extron DMP 128 AT, to an input on a NetPA amplifier.

The NetPA 502 AT and NetPA 1001-70V AT can output incoming Dante channels as line
level signals to simultaneously feed the audio into another speaker zone or audio system.
Both amplifiers also include recessed, detented level controls located on the rear panel
to prevent tampering. These controls facilitate adjustment of audio system gain structure,
or setting an individual level for each zone. Additionally, the NetPA amplifiers include
multiple protection circuits that momentarily activate when an abnormal condition, such
as overheating, is detected. An advanced, automatic clip limiter protects speakers from
clipping distortion.

• Energy efficient Class D Amplifier — The NetPA amplifiers feature an Extron

exclusive, highly efficient, advanced Class D amplifier design to conserve energy and
reduce costs.

• Receives input signals via the Dante audio network — Select one or two channels

from remote digital signal processors on the Dante network to be brought into the
NetPA for amplification.

• Dante audio networking provides a wide range of expansion capabilities —

Dante-equipped audio products provide scalability for creating larger audio systems
over a local area network using standard Internet protocols.

• Dante audio to line level outputs — The NetPA provides fixed line level outputs that

allow the incoming Dante audio to be delivered to additional speaker zones, or another
audio system such as an ALS - assistive listening system.

• Professional grade signal-to-noise and THD+N performance — The NetPA

delivers professional grade performance with greater than 90 dB signal-to-noise ratio
and THD+N of less than 0.1%.

• Defeatable auto power-down timer — Ensures the amplifier is always active for 24/7

operation in critical applications. This feature can be enabled or disbled by setting an

internal jumper.

• Extron Patented CDRS - Class D Ripple Suppression — CDRS is an Extron

Patented technology that provides a smooth, clean audio waveform and an
improvement in signal fidelity over conventional class D amplifier designs.

• Convection cooled, fanless operation — The NetPA does not require internal fans or

vents for cooling, ensuring quiet, reliable operation.

• Ultra low inrush current — Allows multiple NetPA amplifiers to be powered

simultaneously without overloading power circuits. This eliminates the need for power
sequencing.

• Rack-mountable 1U, half rack width enclosure

• Auto power-down with fast power-up — The NetPA includes an auto power-down

feature that automatically places the amplifier into standby after 25 minutes of inactivity,
dramatically reducing power consumption. It quickly returns to full power status in less
than one second upon signal detection.

• Rear panel recessed, detented level controls

• Automatic clip limiter — Detects actual onset of clipping by comparing input and

output waveforms.

• Multiple protection circuits — Activate during output shorts, thermal overload, or DC

NetPA AT Series User Guide • Introduction 2

faults to prevent damage to the amplifier and speakers.

• Remote standby port — Enables the NetPA AT to be remotely powered down when

not in use, reducing operating cost.

• High pass filter for high impedance model — This switch selectable filter, available

on the 70 volt model, rolls off frequencies below 80 Hz to prevent saturation of speaker
transformers.

• Front-mounted signal and protection indication LEDs — Provides convenient

indication of input signal presence and protection circuit activation.

• Link LED indicator for Dante port — Provides visual indication of synchronization to

the master clock on the Dante network.

• Highly reliable, energy efficient internal universal power supply

NetPA AT Series User Guide • Introduction 3

Application Example

The illustration below is one example of configuring a system using the NetPA AT.

Figure 1. Application Example

NetPA AT Series User Guide • Introduction 4

Hardware Installation

This section describes the front and rear panel features and the rear panel connections and
includes the following topics:

• Mounting the NetPA AT

• Hardware Configuration

• Rear Panel Features and Connections

• Front Panel Indicators

WARNING: May result in serious injury. Installation and service must be

performed by authorized personnel only.

AVERTISSEMENT : Risque potentiel de blessure grave. L’installation et

l’entretien doivent être effectués par le personnel autorisé uniquement.

All wiring and electrical connections must conform to all applicable building codes and local
ordinances.

Mounting the NetPA AT

The 1U high, half rack width, 9.5-inch (24.1cm) deep enclosure is designed for
inconspicuous placement.

For detailed mounting options and UL rack mounting guidelines see Mounting of the NetPA

AT on page 30.

Hardware Configuration

Dante Controller for Windows from Audinate is required to select and route Dante transmit
and recieve channels to all connected Dante-compatible devices (see Dante Controller for

Windows on page11).

The NetPAAT has rear panel gain adjustment, a high pass filter (NetPA 1001-70V AT only), a
reset button, and several front and rear panel operational LED indicators.

A defeatable auto power-down timer ensures that the amplifier is always active for 24/7
operation in critical applications. This feature can be enabled or disabled by setting an

internal jumper.

NetPA AT Series User Guide • Hardware Installation 5

Rear Panel Features and Connections

NetPA 502 AT

Net

AT

100-240V 0.5AMAX

GAIN

1

2

-4

-6

-8

-12

-20

50-60Hz

A

100-240V 0.5AMAX

50-60Hz

IEC AC power input, 100 to 240 VAC, 50-60 Hz

A

Gain adjustment

B

Line out connector

C

Remote connector

D

RJ-45 Ethernet connector

E

B

GAIN

-6

-8

-12

-20

-

-4

-6

-2

-2

-8

0

0

+2

+2

+4

+4

--

+6

+6

J

LINE OUT

HPF

1

-4

-2
0

+2

+4

+6

80 Hz

OFF

LINE OUT

1

C

1

NetPA 502 AT

G

8Ω/4Ω OUTPUTS

1

CLASS 2 WIRING

H

REMOTE

2

STANDBY

D

AT

G

E

LINK

F

RESET

I

NetPA 1001-70V AT

REMOTE

G

STANDBY

Link indicator

F

Reset button

G

Amplified stereo audio output connector

H

Amplified mono audio output connector

I

HPF (high pass filter switch)

J

AT

LINK

RESET

70 V OUTPUTS

CLASS 2 WIRING

2

Figure 2. NetPA 502 AT and NetPA 1001-70V Rear Panels

Power — Be sure that power to the NetPA AT is turned off first by disconnecting the

A

power.

NOTE: Adjust the audio level to = (full attenuation) prior to powering the amplifier

(see Gain adjustment).

Turn off all other equipment and disconnect the power cables. Verify that the amplifier is
disconnected from the power source before proceeding.

ATTENTION: The amplier must be powered on last.

ATTENTION : L’amplicateur doit être allumé en dernier.

Reconnect all power cables and switch on all other equipment before powering on the
amplifier. The front panel power LED of the NetPA AT lights green.

Gain adjustment — Turn up the gain pot to the desired level as

B

explained below. When the potentiometer is set to 0 dB, and a 0 dBFS
signal is transmitted through the Dante port, the amplifier will output full
power.

GAIN

1

2

-4

-4

-6

-6

-2

-8

-12

-20

-2

-8

0

0

+2

+2

+4

+4

--

+6

+6

Use a Tweeker or small screwdriver to adjust the audio input gain for

the corresponding channel. The analog potentiometers control the gain
from = (full attenuation) to 0 dB (no gain) to + 6 dB gain.

NOTE:

• The potentiometer affects the gain post DAC and pre

PA 1001-70V

GAIN

-4

-6

-2

-8

0

-12

+2

+4

-20

-

+6

amplifier stage.

• The gain potentiometer does not adjust the level of the line

output.

NetPA AT Series User Guide • Hardware Installation 6

Line out connection — Connect an amplifier or other device to the 3-pole, 3.5 mm

Sleeve

C

captive screw connectors for channel 1 and channel 2 (NetPA 502 AT) or the single
channel (NetPA 1001-70V). Wire as shown below.

Tip

Ring

Balanced Output

" (5 mm) MAX.

Do not tin the wires!

ATTENTION:

contact. DO NOT connect the sleeves to the negative (–) contacts.

ATTENTION :

au sol. Ne PAS connecter les manchons aux contacts négatifs (–).

Tip

NO Ground Here

Sleeve

Unbalanced Output

For unbalanced audio outputs, connect the sleeves to the ground

Pour l’audio asymétrique, connectez les manchons au contact

NOTE: The signal that comes out of the line output is the same signal that goes into the

amplifier stage, prior to the gain potentiometers. (The same audio content coming out
of channel 1 amplified output comes out of the channel 1 line output.)

Audio Output Wiring

Remote connection — The 3.5 mm, 2-pin captive screw remote control port forces

D

the unit into standby mode when the remote standby pin is shorted to ground. The
amplifier will wake from standby, and reset the inactivity timer, when the connection is
reopened.

RJ-45 Ethernet connection — Using standard CAT cable, connect the RJ-45

E

connector of the NetPA AT to a LAN for digital audio transport.

Link indicator LED — The Link indicator LED is locked to the Dante sync signal. This

F

LED will indicate three states in normal operation:

• Blinking (1 Hz) Green — The Dante card generates network audio clock; unit is

master clock.

• Solid green — The Dante card is locked to network audio clock; unit is slaved to

network audio clock.

• Off — The Dante card is not locked to network audio clock.

Reset button — The NetPA AT utilizes DHCP addressing by default.

G

A recessed reset button on the rear panel (see figure 2 on page 6) initiates a reset
mode. Reset will set the IP addressing mode to DHCP (Dante default), clear the
previous IP address, and reset the device name to default.

NOTE: Initiating a reset while the NetPA AT is connected to a transmitting device will

sever that connection.

To reset the NetPA AT: press and hold down the reset button for ten seconds until both
of the rear panel RJ-45 Ethernet port LEDs blink twice.

NOTE: When the NetPA AT is first powered on, or reset, the default name shall be

“NetPA-xxxxxx” where xxxxxx are the last six digits of the MAC address of the
unit.

NetPA AT Series User Guide • Hardware Installation 7