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- GYZA RASTER – Acoustic Foam Absorber
GYZA RASTER – Acoustic Foam Absorber

GYZA RASTER is an innovative high-frequency sound absorber designed by DECIBEL to deliver precise acoustic control in both professional and public environments. Developed from acoustic-grade polyurethane foam, this acoustic panel provides outstanding absorption across the mid and high-frequency ranges, eliminating unwanted reflections, echo, and background noise.
Its distinct polygonal grid design maximises contact area, improving the panel’s efficiency and creating a visually dynamic surface that blends easily into any interior. Suitable for recording studios, offices, classrooms, performance halls, and public venues, GYZA RASTER combines advanced acoustic engineering with a sleek geometric aesthetic that enhances any space it occupies.
How It Works
The performance of GYZA RASTER lies in its precisely calculated grid geometry. The polygonal pattern increases the surface area available for sound interaction, while the acoustic foam’s open-cell structure captures and dissipates airborne sound energy.
Each panel includes recesses and grooves that improve sound wave diffusion and absorption, effectively reducing flutter echo and reverberation in the mid and high-frequency spectrum. This results in a cleaner, more balanced acoustic environment ideal for both communication and performance settings.
Key Benefits
- Absorbs mid and high-frequency sounds, reducing echo and improving clarity.
- Polygonal grid design enhances acoustic efficiency and visual appeal.
- Lightweight, durable, and easy to install on walls or ceilings.
- Constructed from high-quality polyurethane foam with consistent density.
- Supplied uncompressed, maintaining its shape and performance from delivery.
Installation Overview
GYZA RASTER panels are designed for quick and simple installation. They can be mounted directly on walls or ceilings using DECIBEL’s recommended acoustic adhesive for permanent setups, or the Fixie method for removable and semi-permanent configurations.
Their flexibility allows easy cutting and shaping to fit any surface layout, making them suitable for both small and large-scale acoustic treatments.
Key Specifications
- Material: acoustic polyurethane foam
- Density: 25 kg/m³ (ISO 845)
- Hardness (CDH 40%): 1.5 kPa (ISO 3386)
- Colour: dark grey
- Dimensions: 500 × 500 mm
- Thickness: 95 mm (at highest point)
- Weight: 0.8 kg per panel
- Acoustic range: effective for mid and high frequencies
- Installation: adhesive or Fixie mounting system
- Maintenance: easy to clean with a soft brush or vacuum
- Delivery: uncompressed, ready to install
Best Suited For
- Recording and sound editing studios
- Conference and teleconference rooms
- Music rehearsal and performance spaces
- Classrooms and educational facilities
- Call centres and offices
- Restaurants and public venues
Innovative design for acoustic precision
GYZA RASTER combines geometric innovation with acoustic science, providing a visually distinctive and highly effective sound absorption solution. Contact DECIBEL today and transform your space with precision-engineered sound clarity.
Acoustic Performance
Technical data
| Material | |
|---|---|
| Density | 25 kg./mᶟ (ISO 845) |
| CDH Hardness 40 % | 1,5 kPa (ISO 3386) |
| Color | dark grey |
| Dimensions of plate | 50 x 50 cm. |
| Plate thickness | 9,5 cm. |
| Weight | 610 gr. / plate |