System hub

The system hub is the brains of the system, eliminating the need for separate DSPs, amplifiers and Bluetooth transmitters.

Front panel

1. Reset pinhole — for resetting an HDX system to factory settings and unenrolling from Nureva Console. This will also reset the device password to the original code (XXX-XXX-XXX) located on the bottom of the system hub.
2. Power indication.
3. USB connection status for computer or collaboration hub.
4. Port connection status for audio bars and microphone pods.
5. Network status.
6. Cloud status pertaining to internet, communication with Nureva Console cloud and enrollment.
7. Calibrate button for quickly optimizing audio when the room setup or furniture placement has changed significantly.

Warning: Calibration produces a series of loud sounds for approximately 45 seconds. Ensure the room is quiet before starting. We recommend covering your ears or using hearing protection.

Back panel

1. Input jack for power supply.
2. Six PoE connections to audio bars and microphone pods, RJ45 (maximum of four audio bars and two microphone pods).
3. Four analog audio input channels, balanced, Euroblock 3.5 mm pitch.
4. Two analog audio output channels, balanced, Euroblock 3.5 mm pitch.
5. Subwoofer connection, balanced, ¼" jack.
6. USB 2.0 interface to computer or collaboration hub, Type-C.
7. Two connections for Console Direct (cloud-based device management), local area network (LAN) and Dante 2x2 AVoIP, RJ45. Use network port A for a direct connection to the Nureva App.
8. Bluetooth LE technology radio antenna — for wireless communication between the HDX system and other devices.
   • Enables wireless communication with the Nureva App and HDX handheld remote control. Also enables streaming and receiving Auracast broadcast audio.

Front of room

The front of the room is a rectangular space where a presenter typically stands or where a display may be mounted on the wall in a meeting room environment.

Important: For all HDX configurations, two bars must be placed on the same wall. It’s recommended these audio bars are placed in the 1/4 and 3/4 areas on the wall at the front of the room.

Two audio bars placed on the long wall at the front of the room.

Two audio bars placed on the short wall at the front of the room.

No front of room

If the room has no defined front or is set up to be a collaborative or multipurpose space, ideally the audio bars will be positioned in the 1/4 and 3/4 areas of the longest wall.

Two-bar system:
Place two audio bars on the same long wall.

Four-bar system:
Place two audio bars on each long wall.

Best practices

• Two audio bars on the same wall: Ideally, two audio bars will be placed on either side of the main display when there is a front of room or on the longest wall when there is no front of room.
• Symmetry: Keep audio bar placement symmetrical to maintain balanced stereo imaging and avoid phase issues.
• Height consideration: Mount the audio bars at or above head level for optimal sound projection.
• Away from corners: Installing audio bars near corners can cause bass buildup and distorted sound.
• Orientation: Audio bars can be mounted vertically or horizontally — vertical mounting offers optimal speaker dispersion.
• Irregular-shaped rooms: Ideally, the audio bars will be placed in a rectangular or square layout that aligns with the front of the room.
• Adaptive Voice Amplification: An external microphone is required. Position the audio bars so they are facing the audience and away from fixed podiums to prevent double pickup and feedback.
• Tiered rooms: Ideally, four audio bars will be used — mounted at a consistent height above the floor on each tier, with their alignment following the slope of the floor.

Mounting recommendations

Recommended audio bar placement for optimal audio performance.

Audio bar orientation

HDX audio bars can be installed vertically or horizontally, providing flexibility to work around room fixtures like windows and whiteboards. Audio bars come out of the box set up for vertical installation.

In a vertical orientation, the microphones are in the top half of the audio bar and speakers in the bottom half. This separation between input and output sources is necessary for improving sound localization and minimizing interference.

Note: When installing two audio bars horizontally, make sure the speaker drivers (located on the bottom half near the Nureva logo) are positioned at the outer edges of the room. This helps ensure even sound distribution across the space.

Correct installation:
Nureva logos face outer edges of room

Incorrect installation:
One Nureva logo faces center of room

Select up to two microphone pod locations from the five locations below

Microphone pod in front of talker location either on the wall or on the ceiling

If the room has a podium or the primary talker location is known, position the microphone pod either on the wall or the ceiling in front of that location.

Best practices

• Physical proximity: Position the pods near talkers, and directed toward them, for best clarity.
• Even coverage: Space pairs of pods evenly to avoid dead zones and hot spots.
• Overlap of coverage: Allow a slight overlap between pickup zones to maintain consistent clarity from any direction.
• Height matters: Mount pods above head level (8–12' / 2.4–3.7 m) for clear audio from all participants.
• Away from noise: Keep pods away from HVAC vents, fans and other persistent noise sources to reduce ambient noise.
• Adaptive Voice Lift: Add up to two microphone pods for additional coverage or Adaptive Voice Lift support.

Mounting recommendations

Recommended microphone pod placement for optimal microphone performance.

Ceiling mounted

Wall mounted

General placement guidelines

• Ventilation: Ensure all ventilation holes on the top, bottom and sides of the system hub are clear from obstructions.
• Airflow: Ensure at least 2" (5 cm) of clearance around all vents to maintain airflow, prevent overheating and support proper cooling.
• Heat considerations: Do not install the system hub near other devices that generate heat or in a location where the temperature can exceed 40° C (104° F).
• Bluetooth antenna orientation: Position the antenna straight upward for best signal strength and range for the Bluetooth connection. Fold down the antenna only if Bluetooth connection is not required.
• Bluetooth antenna extension: An extension connector is included should the antenna need to extend outside a cabinet, but this setup is not recommended and is used at your own risk.
• Antenna clearance: Maintain a minimum clearance of 5.25" (133.35 mm) around the antenna from any nearby objects, walls or obstructions. This helps prevent signal interference and ensures reliable wireless communication.
• Enrollment code: Record the code (XXX-XXX-XXX) located on the bottom of the system hub. This is required for Nureva App device connection as well as enrollment into Nureva Console cloud.
• Network: See network requirements to ensure the system hub can connect and provide the latest updates to the HDX system.

Server rack considerations

• Temperature: Internal ambient temperature within the rack must be below 40° C (104° F).
• Remotely mounting Bluetooth antenna: If placing the system hub in a server rack, remotely mount the Bluetooth antenna in the room. Third-party kits are available for this.
• Metal interference: Metal enclosures may reduce the Bluetooth LE signal strength.

Placement in a tiered room

When installing HDX audio bars and microphone pods in tiered rooms, it’s important to position them at a consistent height above the floor on each tier, following the slope of the floor. Typically, in a tiered room, the front of room or presentation area is at the lowest point with the audience seats rising gradually toward the back.

There are two recommended options for positioning four audio bars in tiered rooms; microphone pods can also be added.

Option A — Two audio bars on each long wall.
Best for optimal microphone pickup.

Option B — One audio bar on each long wall and one on the front wall behind the podium.
Best for use with Adaptive Voice Amplification.

Placement in an irregular-shaped room

Regardless of the room’s geometry, the same guidelines apply for audio bar placement. For an irregular-shaped room, try to envision it as a rectangular space and then follow the audio bar placement guidelines.

For guidance tailored to your specific room, contact support.

Placement in a divisible room

For HDX systems in divisible rooms that switch between one large space and two smaller rooms, the following requirements must be considered during planning.

• A divisible room setup requires a minimum of two HDX systems, meaning there must be a minimum of two system hubs.
• A maximum of 4 audio bars and 2 microphone pods can be used in a combined room.
• Ideally, in each divided room, two audio bars would be installed on either side of the displays on a wall that’s parallel to the center divider.
• Microphone pods (optional): For optimal pickup, one microphone pod can be installed on the ceiling or the wall in each divided room.

Combined room

Divided room

For one subwoofer: Place it at the front center between the left and right HDX audio bars.

For two subwoofers: Position them in diagonally opposite corners or at the 1/4 points from the front and rear walls to minimize room resonances and achieve more consistent bass coverage. The subwoofers should face the center of the room.

Network requirements

The HDX system hub has two network ports that provide connection with the Nureva App and Nureva Console for device management, updates and monitoring. These Ethernet ports support integrations with room control systems and camera systems and they support Dante 2x2 channels.

Note: Nureva Console connections are both inbound and outbound initiated. These are bidirectional, nonpersistent connections.

Configuration tips

• Ensure port 8883 is open and the MQTT protocol is allowed on your network.
• Ensure the network uses Dynamic Host Configuration Protocol (DHCP) to assign the Internet Protocol (IP) address.
• Note that HDX does not support proxy server configurations.
• Ensure port 123 is open and the Network Time Protocol (NTP) is allowed on your network.
• Note that static IP addresses are not supported by HDX at this time.

When enhanced internet security measures or firewalls are being used, some URLs and IP addresses will need to be approved to allow for a steady connection.

Audio bar

Mounting bracket

What you’ll need

• Phillips-head screwdriver
• Drill
• Ethernet (CAT5e) cable
• #10 panhead anchors or M5 panhead anchors (x2)
• #10 panhead screws or M5 panhead screws (x2)
• Pencil or pen for marking

Installation steps

The audio bar can be installed with the mounting bracket provided in the box. It also supports standard VESA mounting for additional flexibility.

Note: Ensure you review Audio bar placement requirements before installation.

1. Plan the mounting location Select an appropriate location on the wall for installation. See Step 1: Plan the placement
2. Choose orientation A: Vertical orientation: The mounting squares on the audio bar come pre-attached for vertical mounting.
B: Horizontal orientation: Hardware adjustment is required to install the audio bar in the horizontal position: Remove the four screws of each mounting square. Rotate each mounting square to position them for horizontal installation. Reinsert the screws in the new orientation.
Note: For horizontal orientation of two audio bars on the same wall, ensure the speakers are facing away from each other. The speakers are in the lower section of the audio bar, closest to the Nureva logo.
3. Mark for installation Position the mounting bracket on the wall and mark the hole positions with a pencil or pen.
4. Install the mounting bracket  Drill the marked holes, insert wall anchors and then position the mounting bracket and securely screw it to the wall. See wiring diagram for wiring options
5. Route the Ethernet cable Run the Ethernet cable to the mounting area and plug it into the back of the audio bar Tip: For extra security, thread the security wire through the small metal frame hole on the back of the audio bar — located in the divot.
6. Mount the audio bar Align the audio bar with the mounting bracket and slide it into place until you hear it click.  Tip: For cleaner cable management, cables can be tucked and hidden behind the audio bar.
7. Connect to system hub Connect the audio bar to the system hub with the Ethernet cable.  See Step 3: Connect the components

Microphone pod

Mounting bracket

T-bar clips x2

M3 panhead screws x6

Wave washer x2 

What you’ll need

• Phillips-head screwdriver
• Drill
• Ethernet (CAT5e) cable
• #10 panhead screws or M5 panhead screws (x2)
• #10 panhead anchors or M5 panhead anchors (x2)
• Pencil or pen for marking
• Ladder

Installation steps

The microphone pod can be installed on the ceiling or on the wall with the mounting bracket provided in the box. It also supports standard VESA mounting for additional flexibility.

Note: Ensure you review Microphone pod placement requirements before installation.

Ceiling mounting

Note: T-bar clips allow the mounting bracket to be fixed to the main tees and cross tees of a T-bar (suspended) grid ceiling.

1. Plan the mounting location Choose a suitable spot on the ceiling for optimal audio pickup. See Step 1: Plan the placement
2. Attach T-bar clips to the mounting bracket Retrieve the T-bar clips from the packaging.
Place the two screws into the side holes of the clip, but do not fully tighten them yet. Final tightening will occur in a later step.
Add the wave washer to the center of the T-bar clip, then place the mounting bracket on top of the T-bar clip and tighten the screw to the washer area. Repeat the steps above for the T-bar clip on other side.
3. Prepare the mounting spot on the ceiling T-bar Position a ladder under the mounting spot. Lift and move the ceiling tiles aside to access the T-bar.
4. Affix the mounting bracket to the T-bar  Position the mounting bracket over the T-bar. Slide each T-bar clip so it fits over both edges of the T-bar. Tighten both screws to secure them in place.
5. Route the Ethernet cable Run the Ethernet cable to the mounting area and plug it into the back of the microphone pod.  Tip: You may need to notch the ceiling tile to allow it to lay flat.
6. Attach the microphone pod Align the connection points on the bottom of the microphone pod with the posts on the mounting bracket. Slide the microphone pod into place until you hear it click.
Tip: For extra security, thread the security wire through the small metal frame hole on the back of the microphone pod — located in the divot.
7. Connect to system hub Connect the microphone pod to the system hub with the Ethernet cable. See Step 3: Connect the components

Wall mounting

1. Plan the mounting location Choose a suitable spot on the wall for optimal audio pickup.  See Step 1: Plan the placement
2. Mark for installation Position the mounting bracket on the wall and mark the hole positions with a pencil or pen.
3. Mount the bracket Drill the marked holes, insert wall anchors and then position the mounting bracket and securely screw it to the wall.
4. Route the Ethernet cable Run the Ethernet cable to the mounting area and plug it into the back of the microphone pod.   Tip: For cleaner cable management, cables can be tucked and hidden behind the microphone pod.
5. Attach the microphone pod Align the connection points on the microphone pod with the posts on the mounting bracket. Slide the microphone pod into place until you hear it click.
Tip: For extra security, thread the security wire through the small metal frame hole on the back of the microphone pod — located in the divot.
6. Connect to system hub Connect the microphone pod to the system hub with the Ethernet cable. See Step 3: Connect the components

What you’ll need

• Phillips-head screwdriver
• Drill
• Ethernet (CAT5e) cable
• #10 panhead anchors or M5 panhead anchors (x2)
• #10 panhead screws or M5 panhead screws (x2)
• Pencil or pen for marking

Installation steps

The system hub can be placed on a tabletop or a shelf, or it can be mounted on a wall.

Note: Review System hub placement requirements before installation.

Pair the remote

The remote, which uses Bluetooth technology, will automatically attempt to pair with the system hub after its batteries have been inserted. To disconnect the remote from the system hub, press and hold the customizable button 2 and the volume-down button 4 simultaneously for 2 seconds. This will clear any existing Bluetooth connection. To re-pair the remote, press any button to initiate the pairing process.

Important: HDX updates cannot be performed by using a Bluetooth wireless connection. Ensure the HDX device is connected to a network and configured properly before attempting any update.

Automatic updates

When connected to the internet, HDX will automatically check for and install available updates. No user intervention is required, and the system’s LED indicators will show when an update is in progress.

Tip: Automatic updates are ideal for environments where minimal manual maintenance is preferred.

Updating in the Nureva App

LAN without internet access

The HDX system can be updated through a network connection to the Nureva App. The device running the Nureva App must have access to Nureva services through the internet.

1. Ensure your HDX system and your device (computer, tablet or phone) are connected to the same local network.
2. Open a browser and enter the IP address of the HDX system to access the Nureva App.
3. Go to the Device settings section.
4. Follow the on-screen prompts to check for and install updates.

Direct connection with Ethernet cable from Port A to computer with internet access

1. Use an Ethernet cable to connect the computer to Port A on the HDX system.
2. Access the Nureva App through a browser by entering the IP address or use 169.254.254.254 if a static IP address has not been set.

Note: Port B is not supported for direct connection to the Nureva App.

Updating in Nureva Console

Internet or LAN

In Nureva Console, IT and AV managers can update HDX systems remotely.

1. Ensure your HDX system is enrolled in Nureva Console.
2. Log in at console.nureva.com.
3. In the Rooms dashboard, select the device you need to update.
4. Use the Remote update feature to initiate the update process.

Network note: The HDX system must have internet access and be enrolled in Nureva Console to receive updates through Nureva Console.

Adaptive sound

Adaptive sound in HDX offers two distinct speaker modes that are intelligently optimized for specific use cases. When the microphones are active, HDX is in conferencing mode, the subwoofer output is unavailable and the frequency band is limited to optimize for voice. When the microphones are inactive, HDX is in music mode, the subwoofer output is enabled and the audio frequency range is extended to full range, providing a rich listening experience.

Subwoofer

Adding a subwoofer to your HDX system enhances low-frequency performance, delivering richer, more immersive sound — especially in larger rooms.

Note: The subwoofer will be active only when playing content such as videos or music.

Connecting a subwoofer

Use the ¼" TRS (Tip-Ring-Sleeve) connector on the HDX system hub’s subwoofer output.

• Tip = Hot (+)

• Ring = Cold (–)

• Sleeve = Ground/Shield

Ensure the subwoofer has a balanced analog input and its own amplification, as the HDX output is line level (maximum 4 dBu / 1.23 Vrms) and cannot drive passive subwoofers directly.

As soon as the subwoofer is connected, it will be automatically detected and appear in the devices list in the Nureva App.

Audio processing

HDX continuously auto-calibrates for optimal audio quality. Audio processing settings are available in the Nureva App, and they should be adjusted only if users are experiencing problems.

Noise reduction

Noise reduction focuses on persistent or semi-persistent sounds like HVAC systems, fans and projector hum. HDX continuously learns the acoustic signature of these noises and applies targeted filtering to minimize their presence in the audio stream.

You can select a lower setting if remote users notice that voices in the room are cutting out. If remote users hear background noises such as HVAC systems or fans, you can select a higher setting.

Calibration

HDX automatically runs a calibration sequence the first time it’s switched on, so all components should be fully installed before connecting the system to power.

Note: If the system is switched on prior to installation, another calibration will be required after it is installed.

Warning: Calibration produces loud sounds for about 45 seconds. Ensure the room is quiet and cover your ears or consider using hearing protection.

You can use the calibrate button on the front of the system hub to quickly optimize audio when the room setup or furniture placement has changed significantly.

Noise suppression AI

Noise suppression AI is designed to handle unpredictable, short-duration sounds that occur during meetings or classes, such as typing, chair movement or paper shuffling. It uses real-time detection and adaptive filtering to attenuate these noises without introducing artifacts or cutting off speech.

The noise suppression AI feature will block out unwanted transient noises in a space and ensure that remote participants hear only the voices.

Use this feature when you’re working with audio applications that don’t have built-in noise suppression. If you’re using UC&C platforms that already include noise suppression, such as Microsoft Teams or Zoom, you can turn off this feature in HDX to avoid conflicts and ensure the best performance.

Adaptive Voice Lift

Adaptive Voice Lift augments the voice of a talker in the room so they can be heard anywhere in a large space. As the distance between talkers increases, it becomes harder to hear one another due to the way sound travels. Unlike with traditional audio systems that have voice lift features that are complex to set up and maintain, Adaptive Voice Lift automatically configures to the space in which HDX is installed. With full-room microphones, HDX isolates the talker’s voice, determines its location and then sends each audio bar the appropriate gain based on the location. Adaptive Voice Lift responds to ensure everyone is heard throughout the space without painful feedback loops or complex setups.

Adaptive Voice Amplification

Adaptive Voice Amplification can be used in a space where the voice of an instructor or a presenter needs to be clearly heard by both in-person and remote participants. With the use of an external microphone, including the headset, lavalier, earset, handheld and gooseneck types, the voice is amplified in the room. Adaptive Voice Amplification supports up to four external microphones at once. Setup is simple through the Nureva App, with controls for aux-in, amplification level, gate threshold and far-end mic gain.

The external microphones can be connected to the system hub through the balanced analog inputs. Add them in the Nureva App under Devices and configure the settings for each mic, including ducking, gain and gate thresholds. Tune the microphones according to the room size, acoustics, ambient noise and number of in-room participants.

Adaptive Voice Amplification should be used when regular microphone pickup of the instructor’s or presenter’s voice and the in-room speaker volume are inadequate.

Lecture capture

HDX provides flexible integration with lecture capture systems — both hardware and software versions — through direct connection (USB, balanced analog or stereo aux out). With Adaptive Voice Amplification, HDX delivers clear, intelligible audio with instructor voice amplification and audience mute, ideal for transcription and translation services through lecture capture systems.

To set up a divisible room:

Connect to the primary system hub using the Nureva App.
Go to the Devices page.
Press Add, then select HDX system hub to add the second system hub to the primary one.
Complete the setup to enable full-room audio functionality.

Camera switching

HDX makes automated camera switching easy by using precise sound location data generated by Microphone Mist technology. It can detect the location of a person speaking across up to six microphone arrays. It then switches camera views automatically, so remote participants always see the person talking without any need for manual control.

In the Nureva App, you can define camera zones on the coverage map and link them to your preferred camera views or inputs. HDX integrates seamlessly with a wide range of USB switches from INOGENI.

Low power mode

The low power mode on HDX is designed to reduce power consumption by up to 75%. When activated, parts of the system hub remain operational while power is turned off to the audio bars and microphone pods, dropping total system consumption to under 10 watts.

Low power mode can be used whenever the system is not being used. Waking up the system can take up to 45 seconds, so be sure to allow enough time before its next use.

HDX offers three ways to enter low power mode:

1. Automatic sleep

• • Set an idle time: HDX monitors system activity and enters sleep after a user-defined idle time.

    • This feature can be enabled or disabled in the settings.

2. Sleep scheduler

• • Create a 7-day schedule to automatically put HDX into sleep mode at specific times.

3. Sleep APIs

• • Use APIs to automate sleep mode and integrate HDX with third-party systems.

Display and brightness

HDX offers configurable lighting options that provide visual feedback and improve usability. These settings can be adjusted in the Nureva App or the system interface and they include three main controls: Type, in-call color and brightness.

• Type — Choose between Off, Dot and Eclipse modes, each offering a distinct lighting style on the device.

• In-call color — Select blue or green to indicate when the system is active in a call.

• Brightness — Set the lighting to low, medium or high to match your room’s lighting conditions.

With these options you can tailor the HDX lighting modes to fit your room setup and preferences.

Device sounds

HDX comes with device sounds to provide feedback about system status, system health and key feature activity. These sounds help you to ensure the system is operating correctly and make it easier to identify alerts or issues during setup and regular use.

You can adjust which sounds the system plays through the Nureva App. HDX offers two sound preference options:

Essential sounds only

Plays only critical audio cues, such as device health indicators, alerts and important notifications. This is recommended for most installations, especially in environments where minimal audio disruption is preferred.

All sounds

Includes essential alerts plus all additional feature-related sounds. Select this option if you want audible feedback for every available device function.

Replacement terminal blocks can be obtained, as long as they are Euroblock compatible, 3.5 mm pitch and a plug type. The connectors provided with HDX are manufactured by Same Sky, part number TBP03P3-350GR.

UC&C platforms

HDX works with all leading UC&C platforms — the system hub is connected to the device with a USB cable.

Learn more

Audio conferencing setting

Audio conferencing presets in the Nureva App provide a convenient way to select the optimal settings for Microsoft Teams Rooms and Zoom Rooms. When launching the app for the first time, the audio conferencing preset will be Microsoft Teams, the default setting.

Developer Toolkit APIs

The Nureva Developer Toolkit gives you access to cloud-based and local APIs. You can integrate Nureva devices with other products to save time and automate tasks.

Nureva’s APIs include:

• Device management API

• Device control API

• Sound location device API

• Room data API

Third-party integrations include:

• Camera tracking

• Control system

Learn more

You can also use Tools in the app to help quickly diagnose and resolve issues with HDX systems.