Corner-Specific Design (4-Pack) — Cubic corner acoustic foam (7.8-inch side length), specifically designed for installation in wall corners.

Sometimes, the simplest shapes prove to be the most effective. This 4-piece set of corner acoustic foam features a perfect cube design—with each side measuring 7.8 inches—and is crafted from high-resilience polyurethane foam with a density of approximately 24 kg/m³. The pieces come in a random mix of black and gray colors. The cubic geometry allows for effortless integration into any 90-degree corner: simply align one of the cube’s edges with the corner seam, ensuring its two adjacent faces sit flush against the two walls, to create a stable and effective acoustic trap. The cube’s internal cavity and open-cell structure work together to effectively capture and dissipate mid-to-low frequency sound energy (approximately 150 Hz–600 Hz). Each package contains four pieces, which can be installed individually in each of the room’s four corners, or stacked two-deep in a single corner to enhance low-frequency absorption depth. Beyond its acoustic performance, another benefit of the cubic form factor is its potential as a decorative element, creating a modern, “pixelated” aesthetic. Home offices, children’s playrooms, and small music rehearsal spaces are ideal settings for this product.