Solid wood acoustic diffuser
Solid wood acoustic diffusers for natural reflection control.
Solid-wood QRD modules use varied well depths to distribute reflected sound energy across listening, recording and performance environments.
Quadratic-residue diffusion
Designed to scatter reflections, not simply absorb them.
Different well depths return sound energy at different times. Used with appropriate absorption, this helps reduce strong repeated reflections and supports a more balanced acoustic field.
Varied-depth wells
QRD profiles use calculated depth sequences to spread reflected energy over multiple directions.
Architectural timber
Natural wood surfaces bring a warm material character to studios, theatres and listening rooms.
System coordination
Final diffuser position, area and pairing with absorption should be confirmed for the specific room.
Model directions
Choose the QRD profile around the available wall depth and project design.
Solid wood series
QRD-N1
- 600 mm module width
- 600 / 1200 / 1800 mm lengths
- 70 / 110 mm profile depth
Solid wood series
QRD-N4
- 600 mm module width
- 1200 / 1800 / 2400 mm lengths
- 150 mm profile depth
Solid wood series
QRD-D2
- 600 mm module width
- 600 / 1200 mm lengths
- 70 / 110 mm profile depth
Solid wood series
D6 solid wood diffuser
- 350 mm profile width
- 1800 / 2400 mm lengths
- 350 mm profile depth
Dimensions above are transcribed from supplied product references. Confirm model, timber finish, profile depth and approved performance data before ordering.
Supplier model references
Four timber diffuser geometries, clarified for project comparison.
Each visual below is an English-only high-resolution product rendering based on the supplied reference. Dimensions and frequency context remain source-reference information, subject to final room design and approved test documentation.
Solid wood series
D6 solid wood diffuser
A deep-profile solid-wood diffuser direction for multi-dimensional, multi-angle distribution of reflected energy.
- Type: QRD-DWS (source reference)
- Solid wood
- 350 mm profile width / depth
- 1800 / 2400 mm lengths
- Confirm the selected product specification before ordering
Solid wood series
QRD-N4 solid wood diffuser
A linear well profile intended to support clearer spatial definition when coordinated with the rest of the room treatment.
- Type: QRD-N4
- Solid wood
- 600 mm module width
- 1200 / 1800 / 2400 mm lengths
- 150 mm profile depth
- Confirm the selected product specification before ordering
Solid wood series
QRD-D2 solid wood diffuser
A square-well QRD layout with varied recess depths for more uniform multi-angle reflections.
- Type: QRD-D2
- Solid wood
- 600 mm module width
- 600 / 1200 mm lengths
- 70 / 110 mm profile depths
- Source chart: reflection, normalised reflection and scattering curves
Solid wood series
QRD-N1 solid wood diffuser
A compact linear QRD direction for spreading incident energy and helping to avoid repetitive echoes or standing-wave emphasis.
- Type: QRD-N1
- Solid wood
- 600 mm module width
- 600 / 1200 / 1800 mm lengths
- 70 / 110 mm profile depths
- Source chart: reflection, normalised reflection and scattering curves
Performance context
Diffusion is determined by the complete project design.
Diffusion effect depends on geometry depth, module arrangement, installation position and the overall room design. Confirm the required specification before ordering.
| Series | Reference positioning | Selection note |
|---|---|---|
| N1 / D2 | Compact QRD wall modules | Choose profile depth to suit available wall build-up. |
| N4 | Model reference | Confirm geometry and layout against the project design. |
| D6 | Model reference | Coordinate profile depth with structure and clearances. |
Installation coordination
Direct wall fixing with a coordinated support frame.
QRD diffuser modules are generally set out on a level substrate or concealed support system. Final fixing, load path, module joints and perimeter details must follow approved shop drawings.
- 01
Set out the field
Confirm diffuser coverage, symmetry and listening positions with the acoustic layout.
- 02
Prepare the support
Provide a sound, level backing or subframe suitable for the selected timber module depth.
- 03
Fix and inspect
Use the approved concealed or mechanical fixing method, then check alignment across the full field.
Application references
Six ways to bring controlled timber diffusion into a room.
Recording studio
Natural timber QRD diffuser field behind the recording position.
Listening room
Rear-wall diffusion for a balanced, spacious listening environment.
Mixing control room
A controlled reflection strategy around the engineer position.
Theatre and rehearsal room
Diffusion integrated with sound-control surfaces for performance spaces.
Home cinema
Timber diffuser modules used as part of a rear-wall acoustic composition.
Conference and podcast room
Architectural wood diffusion for speech-focused rooms.
Frequently asked questions
Questions before selecting Solid Wood Acoustic Diffuser.
Clear the material, mounting and evidence questions before the product is released into a project.
Share the room dimensions, intended use, wall build-up and target listening positions so the diffuser family and coverage can be coordinated.
Confirm the current product code, dimensions, finish, mounting method, acoustic test conditions and fire evidence against the exact proposed build-up.
Use only the approved fixing system and shop drawings. Timber QRD modules need a level, load-capable backing and coordinated perimeter details.
Send the room type, drawings or elevations, substrate, target programme and any required compliance information. The project team can then identify the documents and sample route needed for review.
Project support