SS-P38

• SSP is our Professional product
• Triple layer material 8mm thickness
• 1,5mm Butyl rubber material
• Aluminium foil 50 microns
• 6mm Nitrile foam with closed cells
• Hyper strong adhesive

SONOSILENT SS-P38 – Premium Triple-Layer Damping & Absorption

SONOSILENT SS-P38 is a premium combination damping and absorption sheet material, purpose-built for the demanding automotive environment. Its advanced triple-layer construction, paired with an automotive-grade adhesive, ensures effortless installation and exceptional long-term performance. In this Tech Brief, we explore the powerful benefits of using SONOSILENT SS-P38 to achieve a quieter, more comfortable vehicle and a better-performing automotive sound system.

With an impressive 8 mm thickness, SONOSILENT SS-P38 delivers exceptional vibration damping and superior acoustic control — combining dense mass, sound absorption, and adhesive strength in one professional-grade solution.

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Damping – The First Benefit

Damping (not dampening) is the process of adding mass to a surface to lower its resonant frequency. Dampening, on the other hand, simply means making something wet — like a sponge or towel.

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Did You Know?

• Adding SONOSILENT SS-P38 dramatically reduces road noise, improving music clarity, voice calls, and overall driving comfort.

• SS-P38 minimizes panel vibrations, making speaker positions harder to pinpoint and creating a wider, more immersive soundstage.

• SS-P38 enhances low-frequency performance of midbass speakers, delivering deeper and tighter “up-front bass” when mounted to rigid, treated surfaces.

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The Science Behind the Silence

Every object has a free-air resonant frequency (Fs) — the point where it naturally vibrates with the least effort. A lower Fs means more energy is required to make it vibrate. By adding the dense mass of SONOSILENT SS-P38 damping sheets to vehicle panels, you shift this frequency downward, ensuring your audio system’s energy moves the air inside the cabin — not the car’s body panels.

The result?

• Dramatically fewer unwanted panel vibrations.

• Speaker locations that “disappear” into the soundstage.

• A more natural, realistic, and engaging listening experience.

⸻

Damping – The First Benefit

Damping (not dampening) is the process of adding mass to a surface to lower its resonant frequency. Dampening, on the other hand, simply means making something wet — like a sponge or towel.

⸻

Did You Know?

• Adding SONOSILENCE SS-P38 dramatically reduces road noise, improving music clarity, voice calls, and overall driving comfort.

• SS-P38 minimizes panel vibrations, making speaker positions harder to pinpoint and creating a wider, more immersive soundstage.

• SS-P38 enhances low-frequency performance of midbass speakers, delivering deeper and tighter “up-front bass” when mounted to rigid, treated surfaces.

⸻

The Science Behind the Silence

Every object has a free-air resonant frequency (Fs) — the point where it naturally vibrates with the least effort. A lower Fs means more energy is required to make it vibrate. By adding the dense mass of SONOSILENCE SS-P38 damping sheets to vehicle panels, you shift this frequency downward, ensuring your audio system’s energy moves the air inside the cabin — not the car’s body panels.

The result?

• Dramatically fewer unwanted panel vibrations.

• Speaker locations that “disappear” into the soundstage.

• A more natural, realistic, and engaging listening experience.