Artnovion SonoraK24

Treating the acoustics of a large room without drying it out remains a balancing act. The dual role of this panel, which absorbs part of the sound energy while redistributing the rest, addresses that problem: it reduces reverberation where a conventional absorber would deaden the room. Its wave-shaped wooden face, perforated with varying widths, also gives it a real presence on a wall.

Absorbing and diffusing at the same time

The Sonora K 24 is a hybrid panel. Its high-density PET core captures part of the acoustic energy, while its front face disperses the rest rather than sending it back as direct reflections. This combination aims for a useful compromise in large spaces: reverberation time is shortened without turning the room into a dead space. An office area or restaurant treated only with absorbers often sounds dull. Here, the diffusive component spreads the sound field more evenly, which helps preserve a certain acoustic liveliness while reducing background noise.

This is the logic behind the hybrid panels in the Sonora K series: acting on reverberation and on sound distribution within the same surface, which simplifies the treatment of large rooms where multiplying purely absorbent panels would end up killing the acoustics.

Wood sculpted into waves

The front face follows a fluid, wave-shaped pattern, with perforations that change in width from one point to another. This interplay of solid and empty spaces creates visual movement and gives the surface depth: the panel does not read as a simple perforated board, but as a relief that catches light differently depending on the viewing angle. Placed side by side, several panels extend this movement across the wall.

This variation in width is not merely aesthetic. The size and spacing of the perforations influence the way the waves penetrate toward the acoustic core, which directly links the design of the face to its sound behavior.

Absorption focused on the midrange

The absorption range extends from 500 to 2500 Hz, that is, the range where most of the human voice lies. This is consistent with the intended uses: making speech more intelligible and calming echoes in rooms where people talk and move around. The measured NRC coefficient is 0.5, which places the panel in acoustic class D. In practical terms, it absorbs about half of the energy that hits it within its useful range: real and audible treatment, but still moderate, to be chosen accordingly depending on the volume to be corrected.

One installation point deserves attention: this coefficient was measured with the panel mounted on a 30 mm PET layer. The layer of material placed behind it is part of the system and contributes to the result. Mounted directly against a rigid wall without that gap, the behavior differs. The Sonora K 24 does not target low frequencies; for a room’s bass modes, dedicated bass traps must be added.

Controlled wood and recycled PET foam

Two finishes share the same internal structure. The natural wood version combines a real wood veneer with black HMDF and the high-density PET acoustic core; the lacquered HMDF version uses the same composition with a lacquered face instead of the veneer. The choice is mainly a matter of the desired appearance, with the acoustic element remaining identical.

From an environmental standpoint, the wood is selected from controlled and sustainable sources, with a stated positive carbon balance, and the PET absorber is recycled, classified as a category 1 product according to the OEKO-TEX 100 standard. The available fire rating is FG, furniture grade. This is a point to check in advance for public venues, where regulations sometimes require a higher fire reaction rating than the one intended for furniture.

Large rooms and speech-focused spaces

The format is that of a tall vertical panel: 605 mm wide by 2400 mm high, and only 19 mm thick, which makes it unobtrusive in depth once installed. This height makes it suitable for the walls of generously sized rooms, where its 2.4 meters cover a surface without multiplying joints.

The contexts in which it makes the most sense are open-plan offices, conference and meeting rooms, auditoriums, and restaurants: spaces where excessive reverberation blurs speech and where flutter echo between two bare walls tires occupants. Dedicated mounting systems, a technical data sheet, and an installation guide come with the panel to frame the installation.

Technical specifications

Overview

• Wave-based acoustic approach
• Innovative design defined by a fluid wave-shaped pattern
• The variable widths of the wood perforations create visual movement and add depth to the surface, giving the panel a strong architectural presence
• Hybrid acoustic panel combining a high-performance acoustic core with a diffusive face
• Hybrid panels like Sonora K reduce reverberation time while improving sound field distribution, an ideal solution for large spaces

Acoustic performance

• Type: hybrid absorber-diffuser
• Absorption range: 500 Hz to 2500 Hz
• NRC coefficient: 0.5
• Acoustic class: class D
• Absorption coefficient measured with installation on a 30 mm PET layer

Applications

• Reduction of reverberation time (RT)
• Improved speech intelligibility
• Control of flutter echo
• Reduction of excessive reverberation

Recommended environments

• Offices
• Conference rooms
• Meeting rooms
• Auditoriums
• Restaurants

Product composition

• Sonora K 24 | Natural wood veneer (FG)
  • Natural wood veneer
  • Black HMDF
  • High-density PET acoustic core
• Sonora K 24 | Lacquered HMDF (FG)
  • Lacquered HMDF
  • Black HMDF
  • High-density PET acoustic core

Environmental features

• Natural wood with a positive carbon balance, carefully selected from controlled and sustainable sources
• Recycled PET absorption, class 1 product according to the OEKO-TEX 100 standard

Fire resistance

• Classification available: FG (furniture grade)

Dimensions

• FG - LW (lacquered HMDF): 605 x 2400 x 19 mm
• FG - NW (natural wood): 605 x 2400 x 19 mm

Documentation and fixing systems

• Sonora K 24 fixing systems
• Data sheet
• Installation guide