Large-room audio made easy

Avoid the high cost of traditional conferencing in your large rooms with a powerful pro AV alternative. The Dual HDL300 system gives you full-room audio coverage with just two wall-mounted microphone and speaker bars. It’s the most economical way to pick up every voice in spaces up to 30' x 50' (9.1 x 15.2 m).

The gift of simplicity

  • Powerful features
  • Simple setup

Get everything you need to equip large classrooms and meeting rooms for great audio experiences.

Get everything you need to equip large classrooms and meeting rooms for great audio experiences.

Get started in less than an hour with a system that keeps large-room audio easy for everyone.

Get started in less than an hour with a system that keeps large-room audio easy for everyone.

Nureva audio connect module

Connect module

No DSP required

All the onboard processing power you need for high performing audio is built right into your Dual HDL300 system. There’s no need to purchase and set up a traditional DSP, simplifying your installation and maintenance.



Microphone Mist technology

Powering the Dual HDL300 system is patented Microphone Mist technology, the breakthrough that audio conferencing has been waiting for. It fills rooms with thousands of virtual microphones so people’s voices are picked up everywhere – making Nureva the easiest and most cost-effective way to get true full-room audio coverage in all your spaces.


The virtual mic difference

  • Full-room microphone pickup
  • Intelligent Sound Targeting
  • Position-based gain control
  • Continuous autocalibration
  • Simultaneous processing

With 16,384 virtual microphones filling your space, there’s always one nearby. People can speak and act naturally in meetings and classes and be confident they will be heard by those who are remote.

HVAC and other unwanted sounds can seriously affect your audio performance. So instead of trying to suppress them after the fact, we use adaptive learning algorithms to preemptively ignore them.

We apply gain separately to each sound in a space based on its position, creating a natural listening experience for remote participants.

With our technology, you never need to recalibrate your systems manually. Your Dual HDL300 is automatically and continuously adapting to changes in your room’s acoustic profile.

Microphone Mist technology listens to, and processes, all virtual microphones simultaneously. Conversations sound natural even when more than one person is speaking at the same time.

Additional features


Nureva audio Voice Amplification Mode


Voice Amplification Mode

Amplify a presenter or instructor’s voice in the room without compromising the listening experience of remote attendees.

Learn more
Nureva audio Active Zone Control


Active Zone Control

Designate a zone in the room where microphone pickup is maintained while pickup in the rest of the space is reduced.

Learn more
Nureva camera tracking


Camera tracking

Use precise sound location data to steer and switch your third-party cameras so remote participants always see who’s speaking.

Learn more

Book a demo

Meet the Dual HDL300 - join us for a 15-minute live, online demo.      Pick your time

Up and running in minutes

Discover the secret to easier audio:

  • No DSP required – all processing power is built in
  • No complicated wiring or invasive ceiling installs
  • No restrictions on camera placement
  • No lengthy configuration processes
  • No compatibility problems with your existing technology products

Plug it in and it just works. It’s that simple.

Configuration diagram
Nureva Dual HDL300 system is built for flexibility
Nureva Dual HDL300 system is built for flexibility
Nureva Dual HDL300 system is built for flexibility
Nureva Dual HDL300 system is built for flexibility
Nureva Dual HDL300 system is built for flexibility
Nureva Dual HDL300 system is built for flexibility

Built for flexibility

With full-room mic coverage, easy installation and cloud-based management tools, the Dual HDL300 system is the easiest way to equip your large spaces. It also supports divisible rooms.

Easy audio for divisible rooms

Do you have rooms with movable dividers or walls? Get great audio no matter how you’re using the space. With the addition of a connect module and an Ethernet switch, your two microphone and speaker bars can run separately, providing full-room audio coverage to two different spaces. When you want your Dual HDL300 to run as one system again, it’s easy to switch back.

Dual HDL300 divisible room illustration with divider
Dual HDL300 divisible room illustration without divider

Plays nicely with others

Use your Dual HDL300 system with all leading UC&C platforms, including Microsoft® Teams and Zoom. As a standard USB device, it also works well with most everything else you have in your spaces.

Get the details
Nureva Dual HDL300 audio conferencing system UC&C platforms

Software and services

How they work together

Nureva® Console

Nureva Console

Remotely install firmware updates, check device status, adjust audio settings, dive into analytics data and more – all from a secure, cloud-based platform.

 Included with your Dual HDL300

Nureva Developer Toolkit

Nureva Developer Toolkit

Get versatile APIs that make it easy to integrate your Nureva devices with other products, automate tasks and enable third-party camera switching and steering.

 Included with your Dual HDL300

Nureva Pro

Nureva Pro

Add a 3- or 5-year Nureva Pro subscription to get an extended warranty, expanded support hours, advance hardware replacement and enhanced capabilities in Nureva Console.

Compare your options

Dual HDL300
Nureva Dual HDL300 audio conferencing system for large spaces
Nureva Dual HDL300 audio conferencing system for large spaces
Max room size
30' x 50' | 9.1 x 15.2 m
35' x 55' | 10.7 x 16.8 m
Installation time
60 minutes
60 minutes
USB plug and play
Full-room mic pickup
Virtual microphones
Unified coverage map
Position-based gain control
Integrated speakers
Four 20-watt
Four 20-watt
Voice amplification
Audience mute
Console Direct
Data for camera tracking
Coordinates (coming soon)
Learn more


Dual HDL300 system data sheet

Learn about the features and specifications of our audio system for large rooms.

Nureva Console data sheet

Learn about the features and benefits of our cloud-based management platform.

Nureva Console security brief

Find security and privacy details related to our cloud-based management platform.

Nureva Pro data sheet

Learn about the features and benefits of our value-added subscription service.

Dual HDL300 installation video

See how easy it is to install the Dual HDL300 audio system on a wall.


Find our resources, downloads and software, or connect with our support team for more assistance.

View all support   


Nureva Console



Release notes   



The Dual HDL300 system is available in over 35 countries, with more coming. Find a distributor.

No – all you need is a computer running a UC&C platform. No extra speakers, components or DSP required. To get updates and manage the system, make sure to install Nureva Console on your in-room computer.

Yes. Although the Dual HDL300 comes with integrated 20-watt speakers, you can also connect it to your own speakers if you prefer.

One of the most popular features of the Dual HDL300 (and all Nureva systems) is the fact that we keep adding features and making improvements. To get regular firmware updates, make sure to register your system in Nureva Console.

Nureva’s patented Microphone Mist technology fills a room with thousands of virtual microphones (a Dual HDL300 system deploys up to 16,384). Each virtual microphone is a point in space where two or more physical microphones (there are 24 in a Dual HDL300) work together intelligently to focus audio pickup. Microphone Mist technology listens to each virtual mic simultaneously and optimizes each one for natural conversations.

When two people talk at the same time, the Dual HDL300 system focuses on the stronger signal (the louder voice), while the other voice drops into the background. The effect is as if you were standing in the room close to the louder talker, but are also aware that someone else is speaking at the same time.

The system monitors and adjusts to the location of a talker 10 times per second.

Yes, but please note that not all UC&C systems support stereo audio.

Yes. The Dual HDL300 system is recognized as a standard USB audio device and works with all leading UC&C platforms out of the box.

The Dual HDL300 system will work with any system that accepts clean, echo-canceled input for audio. The product supplies audio through USB or 3.5 mm auxiliary in and out ports on the connect module.

Each microphone and speaker bar hangs on the wall and connects to the connect module via an Ethernet cable (included). The connect module can also be mounted on the wall, under a table or wherever it is convenient. It is connected to a power source and to your computer via a USB cable (included). You can install the Dual HDL300 system in less than an hour – no specialized skills or technicians are required.

No. Like all Nureva audio systems, the Dual HDL300’s Microphone Mist technology autocalibrates at set up and continuously during use. It senses and adjusts to changes in room characteristics automatically. No technician is required to set up or maintain the system.

Yes, the Dual HDL300 system can provide flexible audio for divisible rooms. With the addition of a connect module and Ethernet switch, the two microphone and speaker bars can run independently (when the room is divided) or together (when the room is not). Find out more.

  • Specifications
  • Configuration diagram



Technology features

Powerful onboard system processors
Continuous autocalibration
Acoustic echo cancellation
Built-in dynamic sound masking
Position-based gain control
Primary audio source for video playback
Ethernet cables to each microphone and speaker bar
Integrated, multicolor status LED



12 - low-noise omnidirectional MEMS (each microphone and speaker bar)

Frequency response at 94 dB SPL 100Hz to 7 kHz

Total harmonic distortion (THD) 0.25% (typical)



2 - 20W 4" aluminum cone (each microphone and speaker bar)

Acoustic output (hardware capable): 91 dB-SPL @ 1m

Total harmonic distortion (THD) <3%



1 - USB 2.0 interface to computer, type B

1 - Auxiliary out 3.5 mm single-ended stereo jack

1 - Auxiliary in 3.5 mm single-ended stereo jack

2 - Connections to microphone and speaker bars RJ-45

1 - Input jack for power supply



1 - USB 2.0 interface to computer, type B
1 - Input jack for power supply



Plug and play compatibility with UC&C platforms including Microsoft Teams, Zoom, Google MeetTM, GoToMeeting®, Cisco Webex®, Blue Jeans, Lifesize®, RingCentral, Fuze Rooms and more

Easy integration with third-party solutions such as Barco ClickShare, lecture capture systems and headset microphones with Voice Amplification Mode



Operating system

Windows® 8 and 10
Mac® OS X® 10 and 11
(Big Sur and Catalina)



Power rating: universal switching 100-240V AC, 50-60Hz

Power consumption: standby <2.5W, operational <25W



Operating temperature: 0° C to 40° C
(32° F to 104° F)

Storage temperature: -20° C to 70° C (-4° F to 158° F), humidity 5–90% (noncondensing)



Automatic firmware updates

Remote management features available through cloud-based Nureva Console





FCC Part 15, Class A; ICES-003, Class A; CISPR 32 (EN55032), Class A; CISPR 35 (EN55035); CISPR24 (EN55024)



UL 62368; CAN/CSA-C22.2 NO.62368; IEC/EN62368; AS/NZS 62368; UL 60950; CAN/CSA-C22.2 NO.60950; IEC/EN60950; AS/NZS 60950



RoHS, REACH, PoP (Persistent Organic Pollutants), WEEE compliance, California Proposition 65, EPA (TSCA-Toxic Substances Control Act) Restrictions



HDL300 (each)

Width: 60.0" (152.4 cm)
Height: 5.91" (14.9 cm)
Depth: 3.5" (9.0 cm)
Weight: 18.0 lb. (8.2 kg)


Connect module

Width: 6.5" (16.5 cm)
Height: 1.41" (3.6 cm)
Depth: 4.31" (10.9 cm)
Weight: 1.5 lb. (0.7 kg)


Shipping (box one)

Width: 64.75" (164.4 cm)
Height: 10.63" (27.0 cm)
Depth: 9.5" (24.1 cm)
Weight: 24.0 lb. (10.9 kg)


Shipping (box two)

Width: 64.75" (164.4 cm)
Height: 10.63" (27.0 cm)
Depth: 9.5" (24.1 cm)
Weight: 22.0 lb. (10.0 kg)



2 - Integrated microphone and speaker bars
Connect module, white

Connect module mounting bracket, white
Country specific power cable
2 - Ethernet cables, CAT6 SSTP, 50' (15 m), Class 3 rated, black

USB Type A-B cable, 6' (1.8 m), VW-1 rated, black
Infrared remote with 2 AAA batteries



Integrated microphone and speaker bar and connect module – Standard 2-year limited hardware

Accessories and cables – 30 days



Black: DUAL HDL300-B
White: DUAL HDL300-W

Setting up the Dual HDL300

We keep things simple. It’s why installing the Dual HDL300 system is an easy procedure that usually takes less than two hours. Hang the two microphone and speaker bars on the wall (with just two screws and plugs each), run Ethernet cables to the connect module and then a USB cable to a computer with UC&C software and you’re ready.


Live online demo

Hearing is believing

Hear the Dual HDL300 system, and have all your questions answered in just 15 minutes. What to expect

  • A 15-minute live demo from a large room
  • A chance to hear microphone pickup everywhere in the space
  • Examples of how organizations like yours are using the Dual HDL300
  • No hard sell – we’re here to help you see if the Dual HDL300 is right for you

Don’t see a time that works?

Contact us, and we’ll find a time that fits your schedule.

Find a different time

University of Missouri
Union Gruppen
Concordia University