--- product_id: 449214766 title: "Triangular Pyramid Bass Traps for Ceiling Corners, 4 Pack, Black | Corner bass traps with a 16.5 in triangular face and 12 in depth for trihedral ceiling corners in studios and home theaters." price: "€ 179.65" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.nl/products/449214766-triangular-pyramid-bass-traps-for-ceiling-corners-4-pack-black store_origin: NL region: Netherlands --- # 12" deep for max bass absorption 16.5" triangle size High-density polyurethane foam Triangular Pyramid Bass Traps for Ceiling Corners, 4 Pack, Black | Corner bass traps with a 16.5 in triangular face and 12 in depth for trihedral ceiling corners in studios and home theaters. **Price:** € 179.65 **Availability:** ✅ In Stock ## Summary > 🎵 Trap the bass, not the vibe — elevate your studio sound game! ## Quick Answers - **What is this?** Triangular Pyramid Bass Traps for Ceiling Corners, 4 Pack, Black | Corner bass traps with a 16.5 in triangular face and 12 in depth for trihedral ceiling corners in studios and home theaters. - **How much does it cost?** € 179.65 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/449214766-triangular-pyramid-bass-traps-for-ceiling-corners-4-pack-black) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Premium Acoustic Foam:** Crafted from high-quality polyurethane foam with large cell size for superior sound absorption and durability. - • **Deep & Large Dimensions:** 16.5" triangle with 12" depth ensures powerful absorption of booming bass for a cleaner, professional sound. - • **Effortless Studio Upgrade:** Transform any home studio ceiling corners into a pro-grade acoustic environment with easy installation and sleek matte finish. - • **Corner-Optimized Bass Control:** Specifically engineered triangular design targets low-frequency buildup where three surfaces meet, eliminating that annoying corner slap. - • **Safe & Sustainable Soundproofing:** Formaldehyde-free, odor-fading foam that’s safe for indoor use—because your health matters as much as your sound. ## Overview The Foroomaco 4 Pack Bass Traps feature a 16.5" triangular pyramid design with 12" depth, crafted from high-density polyurethane foam to absorb low-frequency sound waves effectively. Designed specifically for ceiling corners where bass accumulates, these traps reduce muddiness and improve room acoustics, making them ideal for home studios and professional booths. Safe, durable, and easy to install, they deliver a cleaner, controlled bass response that transforms any space into a high-quality sound environment. ## Description Product description Corner-Optimized Acoustic Design for Low-Frequency Control Fits Ceiling Corners Designed to fit ceiling corners where three surfaces meet, helping control low-end buildup at the source. Foam That Serves the Sound High-density acoustic foam engineered to absorb bass energy where it accumulates most—right at the corners. Deeper. Cleaner. Controlled Featuring a 16.5" triangular pyramid design and 12" depth for effective low-frequency absorption and balanced room acoustics. Purposeful Geometry and Finish Defined by its triangular symmetry and dark matte texture, it complements real-world studio spaces with both form and function. Specification What’s the best way to mount them to the wall? Use Foroomaco’s Mini Ear pads for clean, secure installation. They hold firmly without wall damage or residue. Make sure the surface is clean and dry before applying. What’s the best way to mount them to the wall? Use Foroomaco’s Mini Ear pads for clean, secure installation. They hold firmly without wall damage or residue. Make sure the surface is clean and dry before applying. Do I have to install them in the ceiling corners? Bass traps are designed for three-surface corners where low frequencies naturally build up. Installing them on flat walls greatly reduces performance. Place them symmetrically in ceiling or floor corners for optimal sound balance. Do I have to install them in the ceiling corners? Bass traps are designed for three-surface corners where low frequencies naturally build up. Installing them on flat walls greatly reduces performance. Place them symmetrically in ceiling or floor corners for optimal sound balance. How can I tell if they’re working properly? After installation, play music or a bass-heavy track in your room. You’ll notice that the boomy, muddy low-end becomes tighter and more controlled — a clear sign the traps are absorbing excess bass energy. How can I tell if they’re working properly? After installation, play music or a bass-heavy track in your room. You’ll notice that the boomy, muddy low-end becomes tighter and more controlled — a clear sign the traps are absorbing excess bass energy. My products arrived slightly deformed. How can I restore their shape? The foam may compress during shipping. Lightly soak the bass traps in water, squeeze out the excess, and let them air-dry completely to regain their original shape. My products arrived slightly deformed. How can I restore their shape? The foam may compress during shipping. Lightly soak the bass traps in water, squeeze out the excess, and let them air-dry completely to regain their original shape. The products have a strong smell when first opened. Are they safe? Yes. The bass traps are made from formaldehyde-free polyurethane acoustic foam and are completely safe for indoor use. The initial odor may come from sealed packaging but will fade naturally after a day or two in a ventilated space. The products have a strong smell when first opened. Are they safe? Yes. The bass traps are made from formaldehyde-free polyurethane acoustic foam and are completely safe for indoor use. The initial odor may come from sealed packaging but will fade naturally after a day or two in a ventilated space. Complete Your Acoustic Setup Delta Bass Traps 2-Pack Mini Ear 300-PCS Waffle Diffuser Black Waffle Diffuser White Grid-Style Acoustic Panel Half-Slash Acoustic Panel Slash Acoustic Panel Review: Bass traps. - Items work perfectly. Stopped corner slap immediately. Review: PUT THEM IN WATER & SQUEEZE! - Great Bass Traps they're pretty Solid thick and heavy. They come vacuumed sealed so out of the box they won't just expand by themselves. FOLLOW THE INSTRUCTIONS, put them in water (Like a bathtub as shown in pictures) squeeze them like a sponge and they'll soak up the water and expand and take form. Lastly throw them in the dryer for about 15 minutes or so or use a heat gun or hair dryer to get em nice and dry. Then use whatever adhesive you deem appropriate as they are pretty heavy I recommend using something strong like Gorilla if these are permanent to the room. Sadly they don't come with any means to stick them which is why I gave them 4 stars. All and all GREAT product highly recommended! 💯👍🏽 ## Features - Triangular Pyramid Style - The perfect design for the Trihedral Edge Low-Frequency problem. - 16.5" Triangle 12" Depth - Effectively reduce low-end wavelengths with Large Size and Deep Depth - DIY Your Home Studio - Install with sound proof foam panels to make your room a Pro-Quality Studio - High-Quality Polyurethane Foam - Excellent sound absorption due to the large cell size of the Foam - Strict Quality Control Standards - Product quality issues are most important to us. We comply with strict quality control standards and produce sound foam using high quality ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #4,934 in Musical Instruments ( See Top 100 in Musical Instruments ) #167 in Recording Studio Acoustical Treatments | | Customer Reviews | 4.2 out of 5 stars 232 Reviews | ## Images ![Triangular Pyramid Bass Traps for Ceiling Corners, 4 Pack, Black | Corner bass traps with a 16.5 in triangular face and 12 in depth for trihedral ceiling corners in studios and home theaters. - Image 1](https://m.media-amazon.com/images/I/81s0YQfIl1L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What’s the best way to mount them to the wall?** A: Use Foroomaco’s Mini Ear pads for clean, secure installation. They hold firmly without wall damage or residue. Make sure the surface is clean and dry before applying. **Q: Do I have to install them in the ceiling corners?** A: Bass traps are designed for three-surface corners where low frequencies naturally build up. Installing them on flat walls greatly reduces performance. Place them symmetrically in ceiling or floor corners for optimal sound balance. **Q: How can I tell if they’re working properly?** A: After installation, play music or a bass-heavy track in your room. You’ll notice that the boomy, muddy low-end becomes tighter and more controlled — a clear sign the traps are absorbing excess bass energy. **Q: My products arrived slightly deformed. How can I restore their shape?** A: The foam may compress during shipping. Lightly soak the bass traps in water, squeeze out the excess, and let them air-dry completely to regain their original shape. **Q: The products have a strong smell when first opened. Are they safe?** A: Yes. The bass traps are made from formaldehyde-free polyurethane acoustic foam and are completely safe for indoor use. The initial odor may come from sealed packaging but will fade naturally after a day or two in a ventilated space. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Bass traps. *by S***N on January 7, 2026* Items work perfectly. Stopped corner slap immediately. ### ⭐⭐⭐⭐⭐ PUT THEM IN WATER & SQUEEZE! *by K***3 on July 19, 2022* Great Bass Traps they're pretty Solid thick and heavy. They come vacuumed sealed so out of the box they won't just expand by themselves. FOLLOW THE INSTRUCTIONS, put them in water (Like a bathtub as shown in pictures) squeeze them like a sponge and they'll soak up the water and expand and take form. Lastly throw them in the dryer for about 15 minutes or so or use a heat gun or hair dryer to get em nice and dry. Then use whatever adhesive you deem appropriate as they are pretty heavy I recommend using something strong like Gorilla if these are permanent to the room. Sadly they don't come with any means to stick them which is why I gave them 4 stars. All and all GREAT product highly recommended! 💯👍🏽 ### ⭐⭐⭐⭐ A Must have for treating your room reflections *by J***. on July 24, 2025* This is a great way to acoustically treat your theater or any space that needs help with echo and sound bouncing off different surfaces. They are made of a very dense foam material. These were the first acoustic treatments that I put up. I did notice a slight improvement as soon as I put them up. Again. These were the fist things I put up in my room. And they were the easiest. They fit in the corners nice and utilize every space available to add more treatments if necessary. I would have given 5 stars but I feel they need a few more pieces of the double sided tape. One did fall but I added a few more pieces of my double sided tape and they haven’t come down since. I love that they fit perfectly in the upper corners of the room. You really have to look to see mine. The price was definitely worth it. It is a great quality product and super easy to install. ## Frequently Bought Together - Foroomaco 4 Pack Bass Traps for Ceiling Corner 16.5" Triangle 12" Depth Triangular Pyramid Acoustic Foam Bass Trap Sound Proofing for Home Studio Booth Low to High Frequency Sound Absorption Foam - Focusound 300 Pack Yellow Point Double-Sided Adhesive Dots for Acoustic Soundproofing Foam Panels - Sonic Acoustics 12 Pack Acoustic Foam Panels 7" X 7" X 12" Sound Absorbing Panel, Bass Trap Studio Foam, Corner Block Finish, Sound Panels Soundproof Sound Insulation Absorbing --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nl/products/449214766-triangular-pyramid-bass-traps-for-ceiling-corners-4-pack-black](https://www.desertcart.nl/products/449214766-triangular-pyramid-bass-traps-for-ceiling-corners-4-pack-black) --- *Product available on Desertcart Netherlands* *Store origin: NL* *Last updated: 2026-06-17*