Acoustic foam, such as the "Metro" variant, serves as a sound-absorbing material ideal for rooms requiring pristine sound quality, devoid of unwanted echoes and reverberations. With its open-cell structure, "Metro" foam efficiently converts sound energy into heat, absorbing it effectively. The 3D surface patterns also contribute to scattering reflected sound waves, particularly in the mid- and high-frequency ranges, resulting in a clearer and more robust auditory experience.

This type of acoustic foam is particularly effective at handling high frequencies and eliminating flutter echoes without overwhelming the room with excessive sound absorption. It finds applications in vocal booths, home studios, and various other environments, especially when used in conjunction with corner bass traps.

Key specifications of "Metro" acoustic foam include:

- Dimensions: 50x50cm / (20 х 20 inches)
- Available thickness options: 3cm, 5cm, and 7cm / (1.3", 2.1", 2.9")
- Material: Open-cell polyurethane foam
- Density: 25 kg/m3 / (1.8 lb/ft3)
- Noise Reduction Coefficient (NRC) range: Approximately 0.2 — 0.94
- Compression strain: 3.7 - 4.3 kPa (40% compression)
- Permanent deformation: Up to 3.6% (22 hours, 50% compression at 158 °F)
- Tensile strength: From 90 kPa
- Temperature resistance: Approximately 122 °F
- Number of pores per 1 cm2: About 400
- Number of large pores per m2: ≦ 1%
- Panel thickness error margin: Up to 0.5 cm / (0.2 inches)
- Panel area error margin: Up to 1 cm / (0.4 inches)
- CIELAB chromatic error range: Delta E ≦ 5

The advantages of using acoustic polyurethane foam panels like "Metro" include their high NRC, lightweight construction facilitating easy transportation and installation, compatibility with various surface types and shapes, and visually appealing surface patterns.

Thanks to the diverse profile shapes available, these foam panels also serve as modern wall finishes, adding a professional aesthetic to sound recording studios and home cinema rooms, in addition to their primary function of sound absorption.

In summary, "Metro" acoustic foam panels offer an excellent solution for achieving optimal sound environments in recording studios, audition rooms, and other enclosed spaces. It's worth noting that acoustic foam is typically compressed for shipping, and it's important to allow it time to expand and regain its shape upon unpacking to ensure optimal performance.