Extron electronics NetPA Ultra Series User manual

User Guide
NetPA Ultra Series Amplifiers
Network Power
Amplifier
2-channel and 4-channel DSP and Dante-enabled power amplifiers
68-3165-01 Rev. B
05 23

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.
www.extron.com
.
I
www.extron.com


Copyright
© 2020-2023 Extron. All rights reserved. www.extron.com
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
The following registered trademarks (®), registered service marks (SM), and trademarks (TM) are the property of RGBSystems, Inc. or Extron (see the
current list of trademarks on the Terms of Use page at www.extron.com):
Registered Trademarks (®)
Extron, Cable Cubby, ControlScript, CrossPoint, DTP, eBUS, EDID Manager, EDID Minder, eLink, Flat Field, FlexOS, Glitch Free, GlobalConfigurator,
GlobalScripter, GlobalViewer, Hideaway, HyperLane, IPIntercom, IPLink, KeyMinder, LinkLicense, LockIt, MediaLink, MediaPort, NAV,
NetPA, PlenumVault, PoleVault, PowerCage, PURE3, Quantum, ShareLink, Show Me, SoundField, SpeedMount, SpeedSwitch, StudioStation,
SystemINTEGRATOR, TeamWork, TouchLink, V-Lock, VN-Matrix, VoiceLift, WallVault, WindoWall, XPA, XTP, XTPSystems, and ZipClip
Registered Service Mark(SM) : S3 Service Support Solutions
Trademarks (™)
AAP, AFL (Accu-RATEFrameLock), ADSP(Advanced Digital Sync Processing), AVEdge, CableCover, CDRS(ClassD Ripple Suppression),
CodecConnect, DDSP(Digital Display Sync Processing), DMI (DynamicMotionInterpolation), DriverConfigurator, DSPConfigurator, DSVP(Digital
Sync Validation Processing), EQIP, Everlast, FastBite, Flex55, FOX, FOXBOX, IP Intercom HelpDesk, MAAP, MicroDigital, Opti-Torque,
PendantConnect, ProDSP, QS-FPC(QuickSwitch Front Panel Controller), RoomAgent, Scope-Trigger, SIS, SimpleInstructionSet, Skew-Free,
SpeedNav, Triple-Action Switching, True4K, True8K, Vector™ 4K, WebShare, XTRA, and ZipCaddy

FCC Class B Notice
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to the
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.
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 connected.
• 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.
NOTES: For more information on safety guidelines, regulatory compliances, EMI/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.
CAUTION: Risk of minor personal injury.
ATTENTION : Risque de blessuremineure.
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.
Software Commands
Commands are written in the fonts shown here:
^AR Merge Scene,,Op1 scene 1,1 ^B 51 ^W^C
[01]R000400300004000080000600[02]35 [17] [03]
EX! *X1&*X2)*X2#*X2! CE}
NOTE: For commands and examples of computer or device responses mentioned
in this guide, the character “0” is used for the number zero and “O” is the capital
letter “o.”
Computer responses and directory paths that do not have variables are written in the font
shown here:
Reply from 208.132.180.48: bytes=32 times=2ms TTL=32
C:\Program Files\Extron
Variables are written in italics as shown here:
ping xxx.xxx.xxx.xxx —t
SOH R Data STX Command ETB ETX
Selectable items, such as menu names, menu options, buttons, tabs, and field names are
written in the font shown here:
From the File menu, select New.
Click the OK button.
Specifications Availability
Product specifications are available on the Extron website, www.extron.com.
Extron Glossary of Terms
A glossary of terms is available at https://www.extron.com/technology/glossary.aspx.

Contents Contents
Introduction ............................................... 1
About This Guide................................................. 1
About the NetPA Ultra Series............................... 1
Features .............................................................. 1
Installation................................................. 4
Mounting the NetPA Ultra Series Amplifiers.......... 4
Tabletop Use ................................................... 4
Rack Mounting .................................................... 5
UL Rack Mounting Guidelines.......................... 5
Rack Ear Mounting .......................................... 6
Bridge Plate Rack Mounting ............................ 7
Rack Shelf Mounting........................................ 8
Rack Mounting Ventilation Recommendations ..... 9
Flexible Conduit Adapter Kit .............................. 10
UL Requirements........................................... 11
Installing the Flexible Conduit Adapter Kit .......... 11
Operation ................................................ 14
Front Panel Features.......................................... 14
Rear Panel Features .......................................... 15
Operation .......................................................... 19
Default........................................................... 19
AT Port .......................................................... 20
Standby Modes................................................. 20
Bridging (8 ohm/4 ohm outputs only)............. 22
Monitoring ..................................................... 24
Hardware Reset Modes..................................... 27
DSPConfigurator Software...................... 28
Downloading and Installing DSPConfigurator.... 28
Accessing the DSPConfigurator Help File ......... 29
DSPConfigurator Main Workspace ................... 29
Menu Bar ...................................................... 29
Presets Drop-Down List................................. 31
DSPConfigurator Status Panel...................... 31
Live and Emulate Panel.................................. 31
Connect to a NetPA Ultra Series Amplifier
in Live Mode................................................. 32
Exit Live Mode and Enter Emulate Mode........ 34
DSPConfigurator Inputs.................................... 34
Mic/Line Inputs.............................................. 34
Mic/Line Inputs Processing............................ 36
AT Inputs ....................................................... 45
AT Inputs Processing ..................................... 45
Mix-Points ..................................................... 47
DSPConfigurator Outputs................................. 49
Line/AT Outputs (NetPAU1004).................... 50
Line/AT Outputs (NetPAU1002).................... 50
Line/AT Output Processing ............................ 52
Balancing NetPA Amplifier Output Level and
XPA Input Sensitivity ......................................... 55
Amplifier Outputs........................................... 56
Amplifier Outputs Processing......................... 57
Monitoring ......................................................... 58
Open Circuit Detect ....................................... 62
Loss of AC..................................................... 62
Configuration Tools.................................. 63
Presets.............................................................. 63
Methods for Marking Items ............................ 64
Configuring Presets ....................................... 64
Groups .............................................................. 65
Configuring Groups ....................................... 66
Device Manager ................................................ 68
Managing Devices in Device Manager............ 69
Connect/Disconnect from Device ...................... 70
Firmware Loader ............................................... 70
Downloading Firmware Updates.................... 70
Organize Building Blocks................................... 71
Device Settings.................................................. 72
Unit Info......................................................... 72
Serial Settings ............................................... 73
Dante Device ................................................ 73
Options ............................................................. 74
FCC Class B Notice............................................. iv
Conventions Used in this Guide............................v
Notifications......................................................v
Software Commands........................................v
Specifications Availability ......................................v
Extron Glossary of Terms......................................v
viNetPA Ultra Series • Contents

Dante Controller ...................................... 75
Overview ........................................................... 75
Downloading and Installing Dante Controller...... 76
Configuring a NetPAUltra Series Amplifier in
Dante Controller ............................................... 76
Device Name................................................. 76
Receiver and Transmitter Names ................... 77
Dante Controller Naming Conventions ........... 77
Renaming the NetPAUltra Series Amplifier
in Dante Controller........................................ 77
Renaming a Receiver or Transmitter............... 79
Finding a Dante Device IP Address ................ 80
Dante Controller Operation ................................ 81
Dante Transmitters and Receivers.................. 81
NetPAUltra Series Transmitters and
Receivers...................................................... 81
Dante Routing Operation ............................... 81
Routing Devices............................................. 81
Disconnecting Inputs from Outputs................ 82
Dante Troubleshooting....................................... 83
Simplifying the Network for Troubleshooting... 83
Troubleshooting the Network Interface........... 83
Restarting Dante Controller............................ 84
Remote Control and Configuration .......... 85
Connection Options........................................... 85
RS-232 Port .................................................. 85
AT Port .......................................................... 86
USB Config Port............................................ 86
Verbose Modes ............................................. 86
Host-to-Device Communications....................... 87
NetPAUltra Series-initiated Messages ........... 87
Using the Command and Response Tables ....... 87
Error Responses............................................ 88
Symbol Definitions ......................................... 88
Command and Response Table......................... 89
Input Path OIDs (NetPAU1004) .................... 99
Input Path OIDs (NetPAU1002) .................... 99
Output Path OIDs (NetPAU1004) ............... 100
Output Path OIDs (NetPAU1002) ............... 100
Mix-point OIDs............................................. 100
Troubleshooting ..................................... 101
Amplifier Fails to Exit Standby Mode
Promptly......................................................... 101
Amplifier Enters Standby Mode Too Early..... 101
Limiter/Protect LED Warning Indicators........ 102
Over Temp Indicator LED............................. 102
Status Commands....................................... 102
NetPA Ultra Series • Contents vii

NetPA Ultra Series • Introduction 1
Introduction
This section gives an overview of the Extron NetPA Ultra Series: NetPAU1004,
NetPAU1004-70V, and NetPAU1004-100V, as well as the NetPAU1002,
NetPAU1002-70V, and NetPAU1002-100V. The NetPA Ultra Series is a collection of
4-channel and 2-channel power amplifiers. Topics in this section include:
• About This Guide
• About the NetPA Ultra Series
• Features
About This Guide
This guide describes the NetPA Ultra Series: a series of 4-channel and 2-channel DSP and
Dante enabled power amplifiers and discusses how to install, configure, and operate them.
In this guide, the terms “unit,” “NetPA Ultra Series amplifier,” “amplifier,” and “power
amplifier” refer to the NetPA Ultra Series of power amplifiers.
About the NetPA Ultra Series
The Extron NetPA Ultra Series NetPAU1002 and NetPAU1004 are Dante-enabled,
ENERGY STAR®qualified power amplifiers that deliver two to four 100 watt channels in a
half rack, 1U, plenum rated enclosure.
With their integrated DSP, the NetPAU1002 and NetPAU1004 include essential signal
processing that offers the ability to meet the requirements of complex, decentralized
systems, while Dante Domain Manager and AES67 support ensure wide compatibility with
enterprise configurations and other network audio devices. Exceptional thermal design
provides the ability to install units without using rack spaces for ventilation, conserving
precious rack space. The NetPAU1002 and NetPAU1004 are highly efficient advanced
Class D amplifiers that feature defeatable auto-standby with fast wake up and our patented
CDRS – Class D Ripple Suppression.
Features
• Receives audio from the Dante audio network as well as from analog mic/
line level inputs — Select a channel from any remote Dante-enabled device on
the network, or an analog source, to be brought into the NetPA Ultra Series for
amplification.
• 100 watts rms output power per channel at 8 ohms, 4 ohms, or 70/100V — All
channels driven.

NetPA Ultra Series • Introduction 2
• ENERGY STAR qualified amplifier with defeatable auto-standby and fast
wake up — Both the NetPAU1004 and NetPAU1002 are ENERGY STAR qualified
amplifiers and energy efficient products that conserve energy and reduce cost. Both
amplifiers meet ENERGY STAR qualification requirements with an auto-standby feature
which automatically places the amplifier into Standby mode after 25 minutes of
inactivity thereby dramatically reducing power consumption. And they quickly return to
full power status in less than 100 ms upon signal detection, with minimal inrush current.
Auto-standby can be disabled if required.
• Single and dual rack-mount hardware included — The included single and side-by-
side rack-mount hardware simplifies planning and saves cost.
• Integrated DSP —
• The NetPAU1004 has an 8x8 mix matrix which provides essential DSP
processing including level control, filters, dynamics, and delay.
• The NetPAU1002 has a 6x6 mix matrix that does the same action: providing
essential DSP processing including level control, filters, dynamics, ducking and
delay.
• Convection cooled, fanless operation - can be stacked without extra rack
space for ventilation — The NetPA Ultra Series does not require internal fans or vents
for cooling, ensuring quiet and reliable operation. They generate substantially less heat
than conventional power amplifiers, making them ideal for rack-mount applications
where space is limited (see Rack Mounting Ventilation Recommendations on
page9).
• 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. CDRS
eliminates the high frequency switching ripple that is characteristic of Class D amplifiers,
a source of RF emissions which can interfere with sensitive AV equipment such as
wireless microphones.
• Four channels in a 1U, half rack width enclosure — The channel density of the
NetPAU1004 reduces rack space requirements for many installation.
• Remote control and monitoring —
• Control and monitor the NetPA Ultra amplifier directly through the RS-232 port.
• Control the NetPA Ultra amplifier through a DMP Plus processor over a Dante
network.
• Setup and configuration with Extron DSP Configurator Software — Via the Dante
network or USB.
• UL 2043 plenum rated when used with optional Flexible Conduit Adapter Kit —
The NetPA Ultra Series meets UL 2043 for smoke and heat release for installation within
a plenum airspace above a drop ceiling when used with the optional Flexible Conduit
Adapter Kit. Above-the-ceiling placement conceals the amplifier to prevent theft, and is
convenient for installing equipment when space inside the room is limited.
• Professional grade signal-to-noise and THD+N performance — The NetPA Ultra
Series delivers professional grade performance, featuring 100 dB signal-to-noise ratio
and THD+N of less than 0.1%.
• Ultra low inrush current at power up - no need for power sequencing — Allows
multiple NetPA Ultra Series amplifiers to be powered on simultaneously without
overloading power circuits.

NetPA Ultra Series • Introduction 3
• Power factor correction - removes harmonic content on AC line — The NetPA
Ultra Series features power factor correction technology that smooths out the high peak
currents of the amplifier current draw thereby minimizing the presence of high frequency
harmonics on the AC power line and preventing audible artifacts from being transmitted
to other audio equipment in the system.
• Automatic clip limiter — Detects actual onset of clipping. Gain is automatically
reduced without audible artifacts to protect speakers from clipping distortion.
• Multiple protection circuits — Activate during output shorts, thermal overload, or DC
faults to prevent damage to the amplifier and speakers.
• Remote standby port — Enables the NetPA Ultra Series to be remotely powered
down when not in use, reducing operating cost.
• High pass filter for high impedance models — The 70V and 100V models feature
a fixed high pass filter on the amplified outputs to prevent saturation of speaker
transformers.
• 5 mm screw-lock captive screw speaker connectors — Enable simple, secure
connections with 22 to 12 AWG speaker cables.
• Front and rear-mounted signal and protection indication LEDs — Provide
convenient indication of input signal presence and protection circuit activation from both
sides of the equipment rack.
• Front panel over-temperature LED — Provides visual indication that the amplifier
temperature has exceeded the optimal value, well in advance of the onset of thermal
protection circuitry.
• Internal Extron Everlast power supply — Provides worldwide power compatibility,
with high-demonstrated reliability and low power consumption for reduced operating
cost.
• Extron Everlast Power Supply is covered by a 7-year parts and labor warranty

NetPA Ultra Series • Installation 4
Installation
This section describes the installation and setup of the NetPA Ultra Series of power
amplifiers. Topics include:
• Mounting the NetPA Ultra Series Amplifiers
• Rack Mounting
• Rack Mounting Ventilation Recommendations
• Flexible Conduit Adapter Kit
Mounting the NetPA Ultra Series Amplifiers
The NetPA Ultra Series amplifiers can be mounted in a rack using the included rack ears,
mounted on a rack shelf, set on a table or mounted in the plenum space above a ceiling-
mounted projector. Also, two amplifiers can be connected using the bridging plate to create
a full rack-width unit.
This guide uses images of the NetPAU1004 to describe installation, but all the amplifiers
are installed the same way.
Tabletop Use
Four self-adhesive rubber feet are included. Attach one foot at each corner on the bottom
side of the amplifier and place the unit in a desired location.

NetPA Ultra Series • Installation 5
Rack Mounting
The NetPA Ultra Series amplifiers can be mounted onto a rack using one of the following
methods.
NOTE: The following figures show the NetPAU1004 being installed; however, both
NetPA Ultra Series amplifiers are installed in the same way.
UL Rack Mounting Guidelines
The following Underwriters Laboratories (UL) guidelines pertain to the installation of the
equipment into a rack:
CAUTION: Risk of minor personal injury:
• Elevated operating ambient temperature — If the equipment is installed in a
closed or multi-unit rack assembly, the operating ambient temperature of the rack
environment may be greater than room ambient. Therefore, consider installing the
equipment in an environment compatible with the maximum ambient temperature
(Tma) specified by Extron.
• Reduced air flow — Install the equipment in the rack so that the amount of air
flow required for safe operation of the equipment is not compromised.
• Mechanical loading — Mount the equipment in the rack so that uneven
mechanical loading does not create a hazardous condition.
• Circuit overloading — When connecting the equipment to the supply circuit,
consider the connection of the equipment to the supply circuit and the effect
that circuit overloading might have on overcurrent protection and supply wiring.
Consider equipment nameplate ratings when addressing this concern.
• Reliable earthing (grounding) — Maintain reliable grounding of rack-mounted
equipment. Pay particular attention to supply connections other than direct
connections to the branch circuit (such as the use of power strips).

NetPA Ultra Series • Installation 6
Consignes UL pour le montage en rack
Les consignes UL (« Underwriters Laboratories ») suivantes concernent l’installation de
l’équipement dans un rack :
ATTENTION : Risque de blessuremineure :
• Température ambiante élevée — En cas d’installation de l’équipement dans
un rack fermé ou composé de plusieurs unités, la température du rack peut être
supérieure à la température ambiante. Par conséquent, il est préférable d’installer
l’équipement dans un environnement qui respecte la température ambiante
maximale (Tma) spécifiée par Extron.
• Réduction du flux d’air — Si l’équipement est installé dans un rack, veillez à ce
que le flux d’air nécessaire pour un fonctionnement sécurisé de l’équipement soit
respecté.
• Charge mécanique — Installez l’équipement en rack de manière à éviter toute
situation dangereuse causée par le déséquilibre de la charge mécanique.
• Surcharge électrique — Lorsque vous connectez l’équipement au circuit
d’alimentation, observez la connexion de l’équipement et étudiez les effets
possibles d’une surcharge du circuit sur les protections contre les surintensités
et les conducteurs d’alimentation. Consultez à cet égard les indications de la
plaque d’identification de l’équipement.
• Mise à la terre — Assurez-vous que l’équipement est correctement mis à la
terre. Accordez une attention particulière aux connexions électriques autres que
les connexions directes au circuit de dérivation (ex. : les multiprises).
Rack Ear Mounting
The NetPA Ultra Series amplifiers ship with a set of rack ears, so that the half rack-width
amplifiers can be installed in a full rack-width space.
Mount the amplifier with the rack ears by doing the following:
1. Remove the rubber feet from the bottom of the amplifier if previously installed.
2. Attach the included rack ears (one long and one short) to the sides of the amplifier with
the four provided #6 machine screws (see figure1, 1).
e
NetPAU 1004 Series
1 2 3 4
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
1
POWERAMPLIFIERS
NetP
POWERAMPLIFIERS
NetP
POWERAMPLIFIERS
NetP
Figure 1. Installing Rack Ears onto the NetPAU1004
3. Insert the amplifier into the rack and align the holes in the rack ears with the holes on
the rack.
4. Secure the amplifier to the rack using the four provided 10-32 x 3/4” screws (see
figure2, 1on the next page).
1

NetPA Ultra Series • Installation 7
e
NetPA U 1004 SERIES
1 2 3 4
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
NetP
1
Figure 2. Securing NetPAU1004 to Rack
Bridge Plate Rack Mounting
The NetPA Ultra Series amplifiers ship with a bridge plate connector to allow two amplifiers
to be connected together and form a full rack-width unit.
Mount two NetPA Ultra Series amplifiers by doing the following:
1. If the rubber feet are installed on the bottom of the amplifier, remove them.
2. Position two amplifiers upside down and next to each other.
3. Use the bridge plate connector and the four provided #4 machine screws to connect
the two amplifiers together (see figure3, 1).
4. Attach the two short rack ears to the amplifiers with the four provided #6 machine
screws (2).
e
NetPA U 1004 SERIES
1 2 3 4
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
e
e
e
NetPA U 1004 SERIES
1 2 3 4
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
Mounting
screws (4)
2
1
Net
Net
Figure 3. Installing NetPA Ultra Series Bridge Plate
5. Insert the amplifiers into the rack and align the holes in the rack ears with the holes in
the rack.
6. Secure the amplifiers to the rack using the four provided 10-32 3/4” screws (see
figure4, 1on the next page).
2
3

NetPA Ultra Series • Installation 8
e
NetPAU 1002 SERIES
1 2
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
ES
RS
e
NetPAU 1004 SERIES
1 2 3 4
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
NetPA U
LTRA
NetPA U
LTRA
1
Figure 4. Secure Connected NetPA Ultra Series to Rack
Rack Shelf Mounting
The NetPA Ultra Series can be mounted on a shelf using the optional RSU 129 1U Universal
Rack Shelf Kit.
Mount the amplifier with the shelf as follows:
1. If the rubber feet are installed on the bottom of the amplifier, remove them.
2. Place the amplifier on one half of the rack shelf.
3. Align the front of the amplifier with the front of the shelf, and align the threaded holes on
the bottom of the amplifier with the holes in the rack shelf.
4. Attach the amplifier to the rack shelf with the two provided 4-40 x 3/16” machine
screws. Insert the screws from the underside of the shelf and fasten them into
diagonally-opposite corners.
ATTENTION:
• Using screws longer than 3/16” damages the unit and voids the warranty.
• L’utilisation de vis plus longues que 3/16” endommagera l’unité et annulera
la garantie.
(2) 4-40 x 3/16"
Screws
RSU 129
1U Universal Rack Shelf
False faceplate
uses 2 screws.
Use 2 mounting holes
on opposite corners.
e
12 3 4
OVER
TEMPLIMITER/PROTECT
SIGNAL
NetPAU 1004 SERIES
POWERAMPLIFIERS
NetP
Figure 5. Mounting the Amplifier onto a Rack Shelf
4
5

NetPA Ultra Series • Installation 9
5. Optional, attach a false front panel, not provided with the amplifier, to the unoccupied
side of the rack, or install a second half rack-width device to that side.
Repeat steps 1 through 5 if a second device is being installed.
6. Attach the shelf to the rack by using the four 10-32 x 3/4” screws provided with the
shelf. Insert the screws through #10 beveled washers, then through the holes in the
rack (see figure5 on the previous page).
Rack Mounting Ventilation Recommendations
Excessive heat decreases the optimal lifetime of the power amplifier. An Over Temp
indicator LED on the front panel of the amplifier lights red whenever the recommended
operating temperature has been exceeded.
The NetPA Ultra amplifiers need to be arranged in a rack environment, so that the
environment around the amplifier does not reach or go beyond +122°F (+50°C). No more
than four amplifiers should be stacked one-on-top-of-the-other without an open space in
between, as seen in figure6.
The NetPA Ultra amplifiers can be arranged above or below another non-NetPA Ultra device.
The environment around the amplifier should not reach or go beyond +122°F (+50°C).
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
Figure 6. Ventilation
6

NetPA Ultra Series • Installation 10
Flexible Conduit Adapter Kit
WARNING:
AVERTISSEMENT :
• The circuit breaker used for this connection should be rated no lower than 20
amps and no greater than 30 amps.
• Le disjoncteur utilisé pour cette connexion devrait avoir une cote comprise entre
20 et 30 amps.
• This unit must be installed in accordance with the National Electrical Code and
with all local codes.
• Cet appareil doit être installé conformément au National Electrical Code et à tous
les codes locaux.
• An ALL-POLE MAINS SWITCH with a contact separation of at least 3 mm in
each pole shall be incorporated in the electrical installation of the building, The
installation shall be carried out in accordance with all applicable installation rules.
• Un interrupteur omnipolaire avec une séparation contact d’au moins 3
mm dans chaque pôle, devra être incorporée dans l’installation électrique du
bâtiment. L’installation doit être réalisée conformément à toutes les règles
d’installation applicables.
• Installation and service must be performed by a qualified electrician only.
• L’installation et l’entretien doivent être effectués uniquement par un électricien
qualifié.
• Make sure the source device and the NetPA Ultra are turned off and
disconnected from the power source before you begin.
• Vérifiez que l’appareil source et le périphérique source sont éteints et
déconnectés de la source d’alimentation avant de commencer.
• To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.
• Afin de réduire les risques d’incendie ou de choc électrique, protégez cet appareil
de la pluie ou de l’humidité.
• The product is a Class I product, which must be connected only to a mains
socket outlet with a protective earthing (grounding) connection.
• Ce produit est un produit de Classe I, qui doit être connecté seulement à une
prise femelle secteur équipée d’une connexion de mise à la terre.
• The mains plug/appliance coupler is used as the disconnect device and shall
remain readily operable.
• La fiche secteur / le coupleur d’appareil est utilisé comme dispositif de
déconnexion et doit rester facilement utilisable.
• A UL-Listed electrical distribution box is recommended for the termination of the
conduit opposite the NetPA Ultra amplifier. See UL Requirements on the next
page.
• Un boîtier de distribution électrique certifié UL est recommandé pour la
terminaison du conduit à l’opposé de l’amplificateur NetPA Ultra. Voir UL
Requirements.

NetPA Ultra Series • Installation 11
The optional Flexible Conduit Adapter Kit includes the following parts:
• One conduit adapter plate (pre-attached), for XPA 1002/2001 amplifiers
• One conduit adapter plate for XPA Ultra Series and NetPA Ultra Series amplifiers (not
attached)
• One 6-foot long electrical conduit
• Three 7.5-foot 18-gauge power wires with spade connectors
• One UL rated zip tie wrap
• Three auxiliary crimp style spade connectors designed for 14- to 16-gauge wires
The kit provides a way to replace the IEC power cord with a conduit, where required by local
codes.
NOTES:
• If needed, Extron recommends using a UL-Listed crimp tool to terminate the
spade connectors. One recommended choice is Molex crimp tool.
• The UL-Listed electrical distribution box is not included with the NetPA Ultra
amplifier or the Flexible Conduit Adapter Kit. The installer is responsible for
obtaining and installing the distribution box.
UL Requirements
The Underwriters Laboratories (UL) requirements listed below pertain to the installation of
the flexible conduit onto an NetPA Ultra series power amplifier.
• This unit must not be used beyond its rated voltage range.
• This unit must be wired to a UL-Listed distribution box.
Installing the Flexible Conduit Adapter Kit
WARNING: Electrostatic discharge (ESD) can damage IC chips even though you
cannot feel it. You must be electrically grounded before touching anything inside the
NetPA Ultra. A grounding wrist strap is recommended.
ATTENTION : Les décharges électrostatiques peuvent endommager les puces de
circuit même si vous ne pouvez pas les sentir. Vous devez être électriquement relié à
la terre avant de toucher un élément à l’intérieur du NetPA Ultra. Un braceletde mise
à la terreest recommandé.
Install the flexible conduit to the NetPA Ultra Series amplifier as follows:
1. Unplug the IEC power cord from the amplifier.
2. Remove the eight screws from the top, sides, and bottom of the amplifier, then slide
and lift the cover off (see figure7 on page13).
step 2

NetPA Ultra Series • Installation 12
12 3 4
NetPA U 1004
MIC/LINE INPUTS
1 2
STANDBY
LIMITER/PROTECT
SIGNAL
LINK
R
CLASS 2 WIRING
21 43
Tx Rx
RS-232
G G
341 2 3 4
100-240V 1.0 A, 50-60Hz
LINE OUTPUTS
CONFIG
REMOTE
8Ω/4Ω OUTPUTS
AT
Remove (8)
screws
Slide cover forward and
lift straight up.
Figure 7. Removing the Cover
3. Remove the two screws holding the blue hot (line) and the brown neutral wires from the
terminal block on the PCB. Put the screws to the side to be used later (see figure8).
4. Remove the ground wire nut from the grounding stud located on the bottom of the
enclosure, as shown below. Place the wire nut with the other screws to be used later.
5. Remove the wires attached to the IEC connector from the body of the amplifier, and
slide the IEC connector and attached wires up and out of the amplifier enclosure.
Disconnect cables
and r
emove IEC
connector
.Blue Wire
Brown Wir
e
Remove nut
Figure 8. Removing the IEC Connector
6. Remove the washer at the end of the conduit (see figure9, washer-B), and remove the
conduit adapter plate that ships attached to the conduit.
Separate adapter plate
and washer from conduit
Washer-B
Washer-A
Conduit Adapter Plate
Figure 9. Removing the Existing Adapter Plate
7
step 4
8
9

NetPA Ultra Series • Installation 13
7. Place the adapter plate that ships with the conduit kit on the conduit, with the flat side
of the plate facing the hexgonal nut (washer-A), and secure the new plate to conduit
with the washer that was removed back in step 6 (washer-B) (see figure10).
Place the adapter plate
with the flat side against
washer-A and secure with
washer-B.
Washer-B
Washer-A
NetPA Ultra Series Conduit
Adapter Plate
Figure 10. Secure NetPA Ultra Series Adapter Plate to Conduit
8. Thread the blue, brown, and green 18-gauge power wires that are included with the
flexible conduit adapter kit through the length of the electrical conduit.
9. Install the conduit with the new conduit plate attached into the opening from where the
IEC connector was removed in step 5 (see figure11).
10. Connect the blue hot (line) and the brown neutral wires to the terminal block on the
PCB using the two screws removed back in step 3. Use the included zip tie wrap to
secure the two wires together close to the terminals.
WARNING: Ensure that you observe correct wire polarity. The following
illustration shows the location of the hot (line) and neutral terminals.
AVERTISSEMENT : Respecter la polarité correcte des câble. L’illustration suivante
indique l’emplacement des bornes de ligne et de neutre.
LN
Slide IEC
connector
plate and
conduit into
enclosue.
50-60Hz
100-240V 1.3A
Blue Wire
Brown Wire
Tie Wrap
Grounding Nut
1
1
1
2
2
2
1Blue wire — Hot Line
2Brown wire — Neutral
Figure 11. Install the Conduit Assembly
11. Connect the ground wire, as shown in the figure above, to the grounding stud located
on the bottom of the enclosure using the nut removed in step 4 on the previous page.
12. Replace the cover of the NetPA Ultra amplifier by reattaching the eight screws removed
in step 2 on page11.
10
11