Shure Announces Major Acoustic Performance and Audio Quality Enhancements for Stem Ecosystem

Firmware v2.5 Introduces Substantial Improvements to the Stem Ecosystem

September 28, 2022 Shure Announces Major Acoustic Performance and Audio Quality Enhancements for Stem Ecosystem

CHICAGO, September 28, 2022—Drawing on nearly a century of best-in-class audio engineering, Shure has extensively tuned and refined Stem Ecosystem audio components in certified acoustic labs at its headquarters. These advancements, available to Stem users today via Firmware v2.5, have yielded significant improvements in clarity, more consistent speech levels, and enhanced intelligibility for a more natural and transparent communication experience. 

The Stem Ecosystem provides a customizable audio solution that is easy to set up and design to seamlessly fit the requirements of any room. Combined with the audio quality and acoustic performance improvements of Firmware v2.5, Stem delivers an even more effortless way to achieve a great-sounding conferencing audio experience. 

“In recent firmware updates, we improved the installation and setup experience of Stem solutions and the reliability of products already in the field. This new update provides substantial improvements in acoustic performance and audio quality,” said Luis Guerra, Associate Director of Global Product Management for the Stem Ecosystem, at Shure. 

“We care about enabling our customers to create meeting spaces where they don’t even have to think about the audio because it just works, regardless of the environment,” continued Guerra. “We are confident that the enhanced audio performance featured in this update will have an encouraging and positive impact on our customers’ experiences in their meeting spaces.”

Stem Ecosystem Firmware v2.5 – Device-Specific Updates:


  • Improved array performance, sensitivity, and sound quality to yield better pickup of voices and better rejection of room noise and reverberation. The result is clear voice reproduction for all participants in the coverage area.
  • Readjusted pickup pattern to better match customer selection for Narrow, Medium, and Wide beams.


  • Adjusted the device’s playback speaker levels and tone for high-quality reproduction of both speech and other program material, resulting in increased intelligibility during calls and more pleasant use of the system.
  • Tuned the microphone array for better tonality and voice pickup, resulting in better onsite interaction during meetings.


  • Calibrated woofer and tweeter levels, as well as crossover frequency, resulting in improvements to playback sound quality.
  • Balanced device output level with the rest of the ecosystem for even coverage in rooms with multiple Stem audio components.


  • Fine-tuned playback and microphone pickup, resulting in improved double-talk performance and a better experience for meeting participants.

Additional Improvements

  • Improvements on echo canceller, providing enhanced double-talk performance, for better interaction between conference sites.
  • System sounds, such as push-button chime level, were reduced for a more pleasant experience.

Because Stem devices have auto-updates enabled by default, all Stem Ecosystem devices connected to a network with internet access and on default settings will update automatically overnight. 

The Stem Ecosystem is in stock, shipping now, and available globally. If you need additional assistance, contact the Customer Happiness team here.