A modular 2D diffuser that scatters the mid frequencies and helps limit flutter echo without damping the interior's acoustic energy. The repeatable 50 × 50 cm format lets you build larger diffusive surfaces.
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Lowest price in the last 30 days: 175,90 €
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QRD 2D diffusion
The pattern based on a quadratic-residue sequence diffuses waves in the mid frequencies
The 790-3451 Hz range
The panel helps limit flutter echo and troublesome reflections
A modular 50 × 50 cm format
The repeatable elements can be combined into larger diffusive surfaces
Wall or ceiling mounting
The plugs are included, and the ceiling kit is available on special request
Acoustic data
QRD Tiles uses a quadratic residue sequence to scatter waves in two dimensions. Instead of absorbing energy, it spreads reflections and helps reduce flutter echo in the declared mid-frequency range.
Operating band
The design band resulting from the well geometry (the quadratic residue sequence) is 921-2457 Hz; the stated range includes the operating margin described in the literature - scattering below the design frequency and effectiveness up to approx. 1.5× the well-width limit. Design values, not measurements - we will publish the scattering coefficient chart once measurements are made.
Construction
The fixed format and three-dimensional geometry let the panel repeat in regular wall or ceiling compositions.
The 2D QRD pattern
The surface, based on a quadratic residue sequence, sends the waves off in different reflection directions.
A furniture-board construction
The panel is made of precisely machined wood-based board with good acoustic properties.
A black finish
The panel comes in one finish - black, which fits modern interiors easily.
The mounting system
The plugs are for wall mounting; a ceiling kit is available on special request.
Dimensions and prices
A 50 × 50 × 10 cm square module in a black finish - you scale the composition with the number of panels, not the size.
All the modules are identical (50 × 50 × 10 cm, black) - you scale the composition with the number of panels, and the price grows linearly, with no surcharges for size.
| Parameter | Value |
|---|---|
| Size | 50 × 50 cm |
| Thickness | 10 cm |
| Diffusion range | 790-3451 Hz |
| Weight | approx. 4 kg |
| Assembly | wall plugs; ceiling kit on request |
| Price | 175,90 € |
Assembly
Plan the modules' layout
Mark out the layout of a single panel or a larger diffusive surface on the wall or ceiling.
Install the fixings
Use the included wall plugs; for the ceiling, order the kit available on special request.
Hang and align the panel
Place the module on the fixings and check its level and stability before finishing.
Specification
| Product type | Simple, no variants |
|---|---|
| Size | 50 × 50 × 10 cm |
| Diffusion range | 790-3451 Hz |
| Diffuser type | 2D QRD based on a quadratic-residue sequence |
| Construction | Furniture board |
| Color | Black |
| Assembly | Mounting plugs; ceiling mounting kit on special request |
| Mounting destination | Wall / ceiling |
| Weight | approx. 4 kg |
| Place of manufacture | European Union |
| Manufacturer | Addictive Sound |
Projects
The square format lets you build rhythmic layouts matched to the width of the wall or a chosen section of the ceiling.
Customer reviews
3 verified purchase reviews
w pokoju odsłuchowym scena zrobiła się szersza i bardziej 3D, mniej ostrych odbić od ścian. Ciekawy modułowy wzór, można składać różne układy. Ciężkie, ale warte ceny.
Stage opened up noticeably after I put these behind the listening spot, less harsh reflections and more depth. The modular tile pattern looks great too.
Hinter dem Horplatz montiert, die Bühne wirkt jetzt breiter und die harten Reflexionen sind weg. Modulares Kachelmuster sieht gut aus. Ist allerdings ziemlich schwer.
FAQ
It’s a diffuser – it scatters the waves without damping the room’s acoustic energy. If you also need absorption, pair it with a well-chosen absorber.
The declared diffusion range is 790-3451 Hz (the design band resulting from the well geometry is 921-2457 Hz, widened by the operating margin described in the literature). We’ll add the scattering coefficient chart after measurements – we don’t publish values we haven’t confirmed.
No. It’s a simple product in one configuration: 50 × 50 × 10 cm, black, 175,90 €.
Yes. The construction is modular – the repeatable 50 × 50 cm format lets you build larger diffusing surfaces.
Yes. The panel is meant for the wall and ceiling. We include plugs for wall mounting, and we’ll prepare a ceiling kit on special request.
Yes. The QRD pattern scatters reflections and helps eliminate flutter echo within the declared operating range.
We don’t use a fixed per-square-meter formula. The number and placement of the panels are best matched to the room’s geometry, the reflection points and the goal of the treatment – we’re happy to advise.
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From the workshop
The latest projects and short videos
Installations, behind the scenes and customer interiors - posted regularly on our profiles.
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