Colour-defective Evella acoustic panels! Great deals — collect from Lempäälä!, Lempäälä

Now on auction: 8 colour-defective acoustic panels. On these panels the sides of the slats have been left without the dark finish and the black colouring is more grey.

See the photos for details. Note! There is plastic film on top of the panel.

8 pieces Evella VN40 black oak 2400 × 600 mm wood-veneer acoustic panels

Attractive and functional acoustic interior panels. Slat width 40 mm. Single panel dimensions 2400 × 600 mm. Includes black screws for wall mounting.

Evella acoustic interior panels are a quick and easy way to create a modern, architectural look. The panels suit modern Scandinavian style, creating a seamless slatted wall surface and significantly improving room acoustics.

The panel’s base felt is 100% recycled polyester fibre, specially developed to reduce noise levels and remove room reverberation. The MDF slats fixed to the felt are finished with real wood veneer, giving the panel a natural, beautiful finish. Installation can be done with the supplied screws or with adhesive purchased separately.

How it works
The acoustic slatted panel attenuates sound in two ways:

• The felt acts as an absorbing material that soaks up sound.

• The slats and their gaps scatter sound by diffraction, distributing it in different directions.

Although a slatted panel does not absorb sound as effectively as a traditional acoustic board, it often creates a more balanced and natural acoustic environment, especially in living spaces. The difference can be noticed in speech clarity and reduced echoes from sharp sounds such as bangs.

Natural sound environment
The panel’s natural effect comes from part of the sound reflecting off the slats and scattering more softly. This shortens reverberation and makes the room less echoey, improving comfort for living and working. Especially with speech, the listener has less reverberation to process, which can help with clarity, for example for people with hearing difficulties.

Tip! You can easily test the room’s reverberation by clapping your hands once at different points in the room. In a very reverberant space you will hear how long the reverberation lingers.

Installation
Panels are easiest to screw directly to battens. For concrete walls horizontal battens are recommended. The supplied black drywall screws blend into the felt; extra screws are readily available from DIY stores.

If you want to extend the absorption to somewhat lower frequencies — for example for music listening — you can:

• Install the panel off the wall on battens so the sound does not reflect back immediately after passing through the felt and instead reflects at several interfaces.

• Add mineral wool between the battens to increase absorption. The infill wool or acoustic panel can even be used or slightly worn on the surface since it will be hidden.

The panel can also be installed directly over partition wall insulation without plasterboard, but then the effect is limited to the room’s internal acoustics. A downside is that sound transmits more easily to the neighbouring room, and the panel does not act as effectively as a missing plasterboard would for sound insulation.

Practicality
Evella panels provide an easy way to finish large surfaces without demolition or filler work. They are suitable for walls and ceilings, and installation is quick.

Technical specifications:

• Size: 2400 × 600 × 21 mm (per panel)

• Base felt: 9 mm, 100% PET polyester (NRC (Noise Reduction Coefficient) 0.85)

• Colour: black oak

• Base felt colour: black

• Installation: adhesive or supplied screws (15 pcs / panel)

• Fire rating: D-s1, d2

• Slat spacing: 20 mm

• Slat width: 40 mm

• Slat thickness: 12 mm

• Slat core material: MDF, surface real wood veneer

• CE

• Wood material FSC-certified

Package contains:

• Black fixing screws (15 pcs / panel)

• Screws for ceiling installation to be purchased separately (45 pcs / panel)

NOTE! Panels are delivered in double packs, but odd quantities are also delivered.

• Package weight: 24.5 kg

• Package dimensions: 2420 × 620 × 53 mm

Delivery: Home delivery. Collection available from Lempäälä on weekdays 08:00–16:00. Ask our customer service for more information.