A decade ago Extron pioneered the use of Class D amplifiers in AV applications. We have continuously reinvented Class D with our meticulous approach to engineering and the development of unique, patented technologies, designed to address the particular requirements of AV workflows and installations.
With NetPA® Ultra amplifiers, you get all the advantages of our award winning XPA Ultra amplifiers combined with the power of Dante network audio distribution. Dante connectivity makes it easy to distribute audio from a centralized location to decentralized remote amplifiers throughout a facility, building, or campus using standard network hardware. These ENERGY STAR qualified amplifiers also offer integrated DSP, allowing a single device to function as a complete audio system endpoint. NetPA Ultra power amplifiers provide system scalability, easier installation, and simplified wiring, while meeting the stringent quality requirements of professional audio installations.
The NetPA Ultra models deliver Dante networked audio to local sound reinforcement systems. They enable decentralized and reliable distribution of Dante audio to multiple speaker zones throughout a facility or building, and are the ideal choice for audio amplification in Dante systems. Also supporting AES67 for Audio over IP Interoperability and Dante Domain Manager enterprise level network management, the NetPA Ultra power amplifiers can connect to a variety of other devices and network infrastructure.
Mix Matrix with DSP
A built in matrix allows any analog or Dante input to be mixed to any amplifier output, Dante output or analog line output. Included in the mix matrix is essential processing such as gain adjustments, filters, dynamics, and delay. This functionality offers the possibility of simplified complete systems that include source ducking and routing, without a separate audio DSP.
Both the mic/line inputs and line outputs can be used for connecting analog devices to the Dante network. The mic/line inputs provide connections for sources such as microphones and wireless microphone receivers. The analog line outputs allow for connection of other equipment, including additional amplifiers or assistive listening systems, simplifying connection to the source while maintaining consistent processing. These line outputs have processing separate from the amp outputs to account for varying delay and level settings.
A network connection through a DMP Plus Series processor over a Dante network and RS-232 provide control of amplifier parameters as well as monitoring of the amplifier's status.
XPA Ultra Advantages
NetPA Ultra amplifiers are built on the industry-leading XPA Ultra Class D and power supply platforms for the ultimate in performance and reliability.
An efficient amplifier delivers the highest possible percentage of its input power to output power for speakers. Power not delivered is wasted as radiated heat, which causes further waste in higher cooling costs and energy requirements. The XPA Ultra amplifier platform operates with industry-leading efficiency up to 77%.
Ultra Cool
The XPA Ultra amplifier platform underlying every NetPA Ultra model, runs cooler than other Class D designs. Excessive heat not only wastes a rack space by requiring space for cooling, it also places more demand on rack cooling systems and reduces component life. Higher cooling requirements and failure rates of other Class D amplifiers lead to higher costs and downtime. The convection cooled NetPA Ultra amplifiers run quieter, cooler, and longer, thanks to the cumulative effect of Extron’s meticulous thermal engineering.
Thermal Imaging
Extron XPA U 1004 Four 100 watt channels at 8ΩQSC SPA4-100 Four 100 watt channels at 8Ω
NetPA Ultra amplifiers have an auto-standby feature that places the amplifier into standby after 25 minutes of inactivity, consuming less than 4 watts of energy. This auto-standby can be disabled if required, while maintaining ENERGY STAR compliance.
When audio is detected while in standby, waking up fast enough such that the beginning of audio is not cut off has long been a challenge, now solved with InstaWake technology for the XPA Ultra amplifier platform. The graphic and audio examples below show the difference between the XPA Ultra waking up completely in less than 100 milliseconds compared to competitors’ Class D amplifiers that can take well over two seconds to achieve nominal power. As you will hear, a half second of missed audio can dramatically change the meaning of a sentence.
A highly efficient amplifier will require less electrical power than an inefficient amplifier to deliver the same amount of amplification to speakers. The ENERGY STAR qualified NetPA Ultra amplifiers also use less power in idle or standby.
The NetPA Ultra amplifiers, with their Everlast power supplies, reduce electrical costs in terms of kilowatt hours used, power infrastructure required, and cooling.
Extron's team of dedicated power systems engineers made hundreds of design decisions that cumulatively ensure a NetPA Ultra amplifier will provide years of trouble-free service. For example, sensitive power capacitors are located away from heat sources, failureprone wire harnesses are avoided, short-lived electrolytic capacitors are not in the audio path, and many innovative heat dissipation techniques are utilized throughout. The NetPA Ultra line of amplifiers set a new standard for reliability and efficiency in the professional AV industry.
NetPA Ultra amplifiers are energy efficient products that conserve energy and reduce costs
Onboard DSP
Comprehensive mix matrix and essential audio DSP
UL 2043 plenum rated
When used with the optional, easy to install Flexible Conduit Adapter Kit
Convection cooled, fanless operation
Can be stacked without extra rack space for ventilation
Internal Everlast Power Supply
Provides worldwide power compatibility, with high‑demonstrated reliability and low power consumption for reduced operating cost
Analog Line Outputs
Allow for connection of additional amplifiers with unique processing
Control - Monitoring - Configuration
Network and RS-232 for parameter control and status monitoring - USB for configuration
Dante Connectivity
Works as part of a complete networked audio system solution
Mic/Line Inputs
Allows for connection of legacy analog sources
Auto Standby and InstaWake
Auto standby after 25 minutes of inactivity with wake up in less than 100 ms upon signal detection - auto standby can be defeated if required
Flexible Output Power Options
8 ohm, 70 volt, and 100 volt models available
ENERGY STAR qualified amplifier
NetPA Ultra amplifiers are energy efficient products that conserve energy and reduce costs
Onboard DSP
Comprehensive mix matrix and essential audio DSP
UL 2043 plenum rated
When used with the optional, easy to install Flexible Conduit Adapter Kit
Convection cooled, fanless operation
Can be stacked without extra rack space for ventilation
Internal Everlast Power Supply
Provides worldwide power compatibility, with high‑demonstrated reliability and low power consumption for reduced operating cost
Analog Line Outputs
Allow for connection of additional amplifiers with unique processing
Control - Monitoring - Configuration
Network and RS-232 for parameter control and status monitoring - USB for configuration
Dante Connectivity
Works as part of a complete networked audio system solution
Mic/Line Inputs
Allows for connection of legacy analog sources
Auto Standby and InstaWake
Auto standby after 25 minutes of inactivity with wake up in less than 100 ms upon signal detection - auto standby can be defeated if required
Selectable Output Modes
The bridgeable outputs can power two low impedance channels or one double power high impedance channel
Optimized for Subwoofers
Frequency range of 20 Hz to 1 kHz
ENERGY STAR qualified amplifier
NetPA Ultra amplifiers are energy efficient products that conserve energy and reduce costs
Onboard DSP
Comprehensive mix matrix and essential audio DSP
UL 2043 plenum rated
When used with the optional, easy to install Flexible Conduit Adapter Kit
Convection cooled, fanless operation
Can be stacked without extra rack space for ventilation
Internal Everlast Power Supply
Provides worldwide power compatibility, with high‑demonstrated reliability and low power consumption for reduced operating cost
Dante Connectivity
Works as part of a complete networked audio system solution
Control - Monitoring - Configuration
Network and RS-232 for parameter control and status monitoring - USB for configuration
Line Inputs
Allows for connection of legacy analog sources
Analog Line Outputs
Allow for connection of additional amplifiers with unique processing
Auto Standby and InstaWake
Auto standby after 25 minutes of inactivity with wake up in less than 100 ms upon signal detection - auto standby can be enabled if required
Subwoofer Output
8 ohm and 4 ohm operation
Audio Engineering Excellence Take A look Inside
Look Inside the NetPA Ultra
The XPA Ultra audio power amplifier platform, which includes the NetPA Ultra Dante-enabled models, has been meticulously engineered for optimum performance. From advanced thermal engineering that reduces radiated heat to exacting selection of components to reduce power consumption milliwatt by milliwatt, the XPA Ultra platform leads the industry in operational efficiency. Built on numerous Extron patented technologies, these amplifiers provide unmatched levels of durability, performance and efficiency that cannot be matched by competing models that rely on off-the-shelf OEM modules. Click on the product image to take a look inside.
The XPA Ultra audio power amplifier platform, which includes the NetPA Ultra Dante-enabled models, has been meticulously engineered for optimum performance. From advanced thermal engineering that reduces radiated heat to exacting selection of components to reduce power consumption milliwatt by milliwatt, the XPA Ultra platform leads the industry in operational efficiency. Built on numerous Extron patented technologies, these amplifiers provide unmatched levels of durability, performance and efficiency that cannot be matched by competing models that rely on off-the-shelf OEM modules.
The XPA Ultra audio power amplifier platform, which includes the NetPA Ultra Dante-enabled models, has been meticulously engineered for optimum performance. From advanced thermal engineering that reduces radiated heat to exacting selection of components to reduce power consumption milliwatt by milliwatt, the XPA Ultra platform leads the industry in operational efficiency. Built on numerous Extron patented technologies, these amplifiers provide unmatched levels of durability, performance and efficiency that cannot be matched by competing models that rely on off-the-shelf OEM modules.
High Quality Capacitors
By designing in long lifespan capacitors, product life is extended by up to ten times.
CDRS - Class D Ripple Suppression
CDRS is an Extron Patented technology that provides a smooth, clear audio waveform and an improvement in signal fidelity over conventional Class D amplifier designs.
ENERGY STAR Qualified
Extron NetPA Ultra amplifiers carry on our commitment to create products that conserve energy and reduce costs. They automatically enter energy-saving standby mode after 25 minutes of inactivity. With ultra-fast wake up, the amplifier returns to full power output capability in less than 100 ms after detecting an input signal.
Heat Sensitive Component Placement
High temperature FETs are placed away from capacitors, further extending component life.
Everlast Power Supply
Designed from the ground up by our Extron engineering team, Everlast Power Supplies use state-of-the-art technology and the highest-quality components for high‑demonstrated reliability, low power consumption for reduced operating cost, and worldwide power compatibility.
All point to point soldered wiring
Will not vibrate loose or corrode. No failure-prone connectors.
Advanced Thermal Engineering
High temperature components are heat sinked by massive solder pads on the PCB. This allows surface mount technology to reduce placement error and avoids chassis heat sinking with its resulting radiated heat.
Plenum Rated
NetPA Ultra amplifiers meet UL 2043 requirements when used with the optional Flexible Conduit Adapter Kit, part # 70-228-02. Above-the-ceiling placement conceals the amplifier and is essential when space inside the room is limited.
DSP Board
Dante Enabled
The NetPA Ultra models deliver Dante networked amplification to local sound reinforcement systems. They enable decentralized and reliable network distribution of audio to multiple speaker zones throughout a facility or building. Also supporting AES67 for Audio over IP Interoperability and Dante Domain Manager enterprise level network management, the NetPA Ultra power amplifiers can connect to a variety of devices and network infrastructure.
Integrated DSP
A built in mix matrix allows any analog or Dante input to be mixed to any amplifier output, Dante output or analog line output. Included in the mix matrix is essential processing such as gain adjustments, filters, dynamics, and delay. This offers the possibility of simplified complete systems that include source ducking and routing, without a separate audio DSP.
Analog Line Inputs & Outputs
Both the mic/line inputs and line outputs can be used for connecting analog devices to the Dante network. The mic/line inputs provide connections for microphones and wireless microphone receivers. The analog line outputs allow for connection of additional amplifiers or assistive listening systems, simplifying connection to the source while maintaining consistent processing. These line outputs have processing separate from the amp outputs to account for varying delay and level settings.
Status Monitoring
With an IPCP control processor, proactively monitor the status of NetPA Ultra amplifiers via the Dante network connection. Get the amp details you need, including temperature, levels, clipping, and if an amplifier unexpectedly goes offline. Whether identifying equipment in a room, verifying if a device is offline or simply powered off, direct access to information helps support teams resolve tasks faster and plan maintenance before anything becomes an urgent issue.
In-Depth Independent Review of NetPA Ultra DSP by Prof. Dr.-Ing. Anselm Goertz
Mr. Goertz, doctor of electrical engineering with a specialty in technical acoustics, conducted extensive testing of the Extron NetPA Ultra amplifier's integrated DSP and wrote this review for Germany’s Professional System Magazine. Mr. Goertz deals with planning, training, and project support in all areas of electrical and room acoustics measurement technology for professional audio.
Only a company that develops its own unique technology could have a patent portfolio as extensive as Extron, including many audio patents. The NetPA Ultra amplifiers benefit from our patented technologies shown below, technologies providing key performance and reliability advantages to our customers that cannot be duplicated by other amplifier manufacturers.
Class D Ripple Suppression - CDRS
Three patents form the basis of Extron's CDRS technology found in NetPA Ultra amplifiers. This technology reduces high frequency radiated emissions that can be picked up by other gear.
Class D Soft Switching
Extron's soft switching design works with CDRS to reduce dissipated power, which increases amplifier efficiency.
Class D Power Converter
The power converters in Extron Class D amplifiers facilitate energy transfer for more precise performance while using fewer lifetime-limiting capacitors in the power supply.
Low Noise Triangular Waveform Generator
Since a triangle generator is the heart of a Class D amplifier, and triangle generators have audio band noise content, this technology is used to greatly reduce that noise content resulting in a lower audio noise floor.
Class D Circuit Bandwidth Extension
This technology advances Class D Ripple Suppression to reduce THD at high audio frequencies.
Class D Distortion Reduction
New for the NetPA Ultra line of amplifiers, this technology reduces distortion in the output signal by filtering ripple and reducing nonlinearities as the audio signal passes through the amplifier.
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