ALTA Integra - The harmony between the acoustic diffuser and the Helmholtz resonator and lighting blends perfectly in the listening room. Gaps in the acoustic diffuser could be used as a lighting
![Online Acoustic Calculators [English version] - Рекомендації по акустиці приміщень - Aкустические материалы и Технологии Online Acoustic Calculators [English version] - Рекомендації по акустиці приміщень - Aкустические материалы и Технологии](http://www.acoustic.ua/st/File/rounded_slats[1].jpg)
Online Acoustic Calculators [English version] - Рекомендації по акустиці приміщень - Aкустические материалы и Технологии
![Acoustics | Free Full-Text | An Experimental and Numerical Study on the Effect of Spacing between Two Helmholtz Resonators Acoustics | Free Full-Text | An Experimental and Numerical Study on the Effect of Spacing between Two Helmholtz Resonators](https://www.mdpi.com/acoustics/acoustics-03-00009/article_deploy/html/images/acoustics-03-00009-g001.png)