
Piramidal Grey
Piramidal Grey is a pyramid-profiled acoustic absorber from AMC Mecanocaucho, made from self-extinguishing grey polyurethane foam. The wedge geometry delivers effective broadband sound absorption and a clean geometric appearance, making it a practical choice for studios, listening rooms, and technical enclosures.
Specifications
- Composition: self-extinguishing grey polyurethane foam, pyramid profile
- Available thicknesses: 30 mm, 50 mm
- Sheet format (30 mm): 960 x 960 mm
- Sheet format (50 mm): 950 x 950 mm
- Weighted sound reduction index (Rw): 13 dB (30 mm), 12 dB (50 mm)
- Self-adhesive option: available on both thicknesses
Applications
Wall and ceiling absorption treatment in recording studios, rehearsal rooms, home theatres, broadcast booths, and industrial enclosures. The pyramid surface profile increases effective area and graduated impedance, improving absorption at mid and high frequencies. The grey colour integrates neatly into technical room interiors without additional finishing.
Frequently asked questions
What does self-extinguishing mean for a foam product?
Self-extinguishing polyurethane foam ceases to burn once the ignition source is removed. This is a basic safety property distinct from a formal fire classification; for installations requiring a rated fire class, the Piramidal Fire Resistant variant with M-1 melamine foam is the appropriate choice.
Why does Rw decrease slightly from 30 mm to 50 mm?
Rw is a weighted index that reflects performance at a range of frequencies. The result of 13 dB at 30 mm and 12 dB at 50 mm is as stated in the manufacturer specifications; thicker pyramid panels primarily improve low-frequency absorption rather than simply raising Rw.
Is Piramidal Grey available with a self-adhesive backing?
Yes. Both the 30 mm and 50 mm versions are offered in self-adhesive variants, simplifying direct mounting onto walls and ceilings without additional adhesive.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.

