nacsound news and insights
Solid Surface: Material as Product Identity
Form, Material, and Sound
In the continuous search for the most advanced acoustic design, Francesco Pellisari has always placed great emphasis on the relationship between form, material, and sound. For Pellisari, acoustics is not only a technical discipline, but a dialogue between matter and vibration.
Terracotta: The Origin of Sound Sculpture
The earliest loudspeakers and sound sculptures were created in terracotta, an extraordinary material from an acoustic perspective. Its high rigidity, excellent resonance behavior, and natural ability to enhance harmonics make it uniquely expressive. Terracotta remains, to this day, the privileged material of Pellisari’s artistic work, where sound and sculpture merge into a single language.
From Artistic Research to Industrial Development
As research evolved toward industrial production, this exploration naturally led to the use of Solid Surface—a composite mineral material originally developed for design and architecture. Capable of evoking the visual qualities of marble while offering outstanding technical performance, Solid Surface represents an ideal bridge between aesthetics and engineering.
Acoustic Performance of Solid Surface
Thanks to its high elastic modulus, controlled mass, and excellent internal damping, Solid Surface proves to be exceptionally suitable for acoustic applications. These properties allow for precise control of vibrations, resulting in sound reproduction that is accurate, stable, and natural, while maintaining consistency across production.
Design Precision and Reproducibility
In collaboration with GP Design and designers Andrea Cestonaro and Paolo Andriolo, NACSOUND develops loudspeakers and sound objects in Solid Surface characterized by high geometric and constructional reproducibility. This precision is essential to ensure design coherence, acoustic reliability, and long-term quality continuity.
Material as Identity
Terracotta remains the language of the artist.
Solid Surface, instead, has become the identity material of NACSOUND, founded in 1996 by Francesco Pellisari—a meeting point where acoustic research, design culture, and industrial production converge.



