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Sound Acoustic Studio Diffuser «Sirius»

Sound Acoustic Studio Diffuser «Sirius»

★★★★★
Rated 4.8/5 based on 127 reviews on Trustpilot
Regular price €68,99 EUR
Regular price Sale price €68,99 EUR
Sale Sold out
Taxes included. Shipping calculated at checkout.
Free shipping on every order.
Easy DIY installation – kit included
Professional absorption
2-year warranty & support
Ships in 5–7 weekdays (depends on supplier)*
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Acoustic Diffuser "Sirius" – 2D QRD Sound Panel
Materials: High Density Foam, Wood
Dimensions: 500x500x153 mm (20x20x6 inches)
The "Sirius" acoustic diffuser is designed for wall and ceiling treatment, improving sound quality by creating a diffuse sound field. Ideal for recording studios, home theaters, concert halls, radio and TV studios, and more. Its advanced 2D QRD (Quadratic Residue Diffuser) structure ensures superior sound diffusion, reflection, absorption, and noise reduction.
Key Features:
✔️ Enhances acoustics by scattering and absorbing sound waves
✔️ Works across low, mid, and high frequencies (625Hz–5000Hz)
✔️ Made of durable laminated MDF and acoustic foam
✔️ Available in 7 colors to match any interior
✔️ Noise Reduction Coefficient (NRC): 0.48
Perfect for: Recording studios, podcasts, offices, conference rooms, rehearsal spaces, and home theaters.
Upgrade your space with professional-grade sound diffusion!

Fast Delivery

shipped within 5-10 business days

Expert Support

personal advice from our acoustic specialists

Quality Guarantee

durable materials, tested for professional use

How many panels do you need?

Every room is different. As a rule of thumb, covering 20–30% of your ceiling with acoustic panels already makes a big difference.

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What our customers say

★★★★★

“We installed 6 panels in our office and the difference is incredible. The echo is gone and meetings are much clearer.”

– Sarah K. (Amsterdam, NL)
★★★★★

“Fast delivery and easy installation. The panels look stylish and really improved the sound in my studio.”

– Jonas B. (Berlin, DE)
★★★★☆

“Great product! I ordered 4 for my living room. Big improvement, I may add more later for maximum effect.”

– Elise M. (Brussels, BE)

FAQ

How long does delivery take?

Most products are shipped within 5–10 business days. Larger or custom orders may take longer. You will always receive a tracking link once your order is dispatched. This is because all of our products are made direct in the factory.

Do you offer installation services?

Yes. Qoustic provides professional on-site installation by appointment only. This ensures your absorbers and diffusers are placed for optimal acoustic results.

Can I get advice before purchasing?

Absolutely. Our team of audio specialists is available to guide you in choosing the right products for your studio setup.

What payment methods do you accept?

We support all major payment methods including credit card, PayPal, and bank transfer.

Do Qoustic products come with a warranty?

Yes. All products come with a standard warranty against manufacturing defects. Details are specified per product page.

Can I return a product?

Yes. Unused products can be returned within 14 days in their original packaging. Please contact us before returning your order.

Do you also ship internationally?

Currently, Qoustic primarily serves The Netherlands, Belgium and Germany. International shipping is possible upon request.