Table of Contents
Overview
The Harmony Audio HA-SDSK sound damping mat speaker install kit uses 70 MIL rubber butyl for car audio sound damping. It includes two 10-inch by 10-inch sheets for placement around door-panel speaker openings.
The material is designed to lower overall road noise by as much as 6 dB with an entire interior application. Also, it eliminates panel vibrations and rattles while allowing speakers to project clearly and make music more pronounced.
Key takeaways
- The kit includes two 10-inch by 10-inch sound damping sheets.
- Each sheet uses 70 MIL rubber butyl and measures 0.07 inches thick.
- A strong self-adhesive backing holds the material once set.
- The black foil backing gives the installed material a more professional look.
- The material supports car audio sound damping around door-panel speaker openings.
- An entire interior application is designed to lower overall road noise by as much as 6 dB.
What the product is designed to do
This car audio sound damping kit focuses on panel vibrations, rattles, road noise, and speaker projection. Damping means controlling vibration within a panel rather than adding a soft sound-absorbing layer.
The rubber butyl material eliminates panel vibrations and rattles. Also, it allows speakers to project clearly, making music more pronounced.
The sheets support placement around door-panel speaker openings. For broader vehicle treatment, an entire interior application is designed to lower overall road noise by as much as 6 dB.
Materials, dimensions, and technical details
The kit uses 70 MIL rubber butyl with a black foil backing. Also, the material balances flexibility and performance for tight corners.
| Technical detail | Specification |
|---|---|
| Included quantity | Two sheets |
| Sheet dimensions | 10 inches by 10 inches |
| Material | 70 MIL rubber butyl |
| Thickness | 0.07 inches |
| Surface finish | Black foil backing |
| Adhesive | Strong self-adhesive backing |
| Temperature rating | Up to 200 degrees |
| Intended setting | Cars, trucks, and SUVs |
The 70 MIL rubber butyl sheets use a strong self-adhesive backing. Once set, the backing does not move.
Installation and placement notes
Begin by removing the speaker from the door panel. Next, clean the metal surface and make sure it is dry before applying the sheet.
Center the first sheet over the speaker hole and press firmly. Also, keep the material positioned around the door-panel speaker opening.
After placement, cut out the speaker opening with a razor blade and remove the excess material. Next, cut the mounting-screw holes before reinstalling and securing the speaker.
Repeat the process on the opposite door panel. The material’s flexibility supports shaping around tight corners during placement.
The self-adhesive sound damping material belongs directly on the clean, dry metal surface. A related guide to car door damping installation can help organize the door-panel steps.
Performance characteristics described
The main performance focus is vibration damping. The rubber butyl material eliminates panel vibrations and rattles after application.
Also, the material supports clearer speaker projection and makes music more pronounced. These audio-related effects connect directly to treating the metal around the speaker opening.
For road noise, the stated reduction reaches as much as 6 dB with an entire interior application. As a result, that figure applies to broader interior coverage rather than two small door-speaker areas alone.
The strong adhesive backing does not move once set. In addition, the material carries a temperature rating up to 200 degrees.
Review patterns buyers commonly mention
Buyers commonly mention strong adhesive hold after application. Also, repeated feedback covers flexible material that supports cutting and shaping.
Reduced panel vibration and rattles form another common pattern. In addition, buyers mention reduced humming or resonance on treated surfaces.
For more automotive audio context, this guide to sound damping around speaker installations covers related setup considerations.
Pros
- Uses 70 MIL rubber butyl for car audio sound damping.
- Includes a strong self-adhesive backing that does not move once set.
- Balances material flexibility and performance for tight corners.
- Eliminates panel vibrations and rattles.
- Supports clearer speaker projection and more pronounced music.
- Buyers commonly mention strong adhesive hold and easy shaping.
Cons
- The kit includes only two 10-inch by 10-inch sheets.
- The 6 dB road-noise wording applies to an entire interior application.
- Installation requires cutting the speaker opening and mounting-screw holes.
- Door-panel preparation requires speaker removal plus a clean, dry metal surface.
FAQ
What type of material does the kit use?
It uses 70 MIL rubber butyl with a black foil backing. The material measures 0.07 inches thick.
How many sheets come in the kit?
The kit includes two sheets. Each sheet measures 10 inches by 10 inches.
Where does the material go on a car door?
The sheets support placement around door-panel speaker openings. Apply them to clean, dry metal after removing the speaker.
Does the material reduce road noise?
It is designed to lower overall road noise by as much as 6 dB with an entire interior application.
How does it affect panel vibration?
The sound damping mat eliminates panel vibrations and rattles. It also supports clearer speaker projection.
What cutting is required during installation?
Cut out the speaker opening after pressing the sheet onto the metal. Next, cut holes for the speaker mounting screws.