Beat-Sonic DMS-SP301 Door Speaker Acoustic Foam Kit – Universal 6.3 in.

The Beat-Sonic DMS-SP301 Door Speaker Acoustic Foam Kit is a plug-and-play sound deadening solution that significantly improves the performance of your existing door speakers. Two acoustic foam rings, inner acoustic pads, and vibration-damping pads work together to eliminate the resonance and panel vibrations that rob your speakers of bass depth and clarity — all with adhesive-backed installation that requires no special tools and no permanent modifications.

Compatible with any 6.3-inch front door speaker, including factory speakers in select Toyota models.

Professional local installation available in La Mirada, Southern California. Contact us at info@beatsonicusa.com to book.

Key features

• Acoustic outer foam rings — create a sealed enclosure around the speaker opening to focus sound output and eliminate wave cancellation
• Acoustic inner pads — placed directly behind the speaker to absorb reflected sound waves and improve midrange and bass clarity
• Beat-Sonic Encore vibration-damping pads — reduce door panel resonance and rattling near the speaker zone
• Adhesive backing on all components — clean, secure installation with no drilling or permanent modifications
• Deeper bass and cleaner sound — eliminates the distortions that prevent your speakers from performing at their best
• Fire safety approved materials — all components meet fire safety standards
• Compatible with any 6.3-inch front door speaker — universal fit for factory and aftermarket speakers
• Roller applicator tool included for clean, even application of damping pads

Compatible vehicles

The DMS-SP301 is compatible with any vehicle using 6.3-inch front door speakers. Confirmed compatible with the following Toyota models:

Not sure if this fits your speaker size? Email info@beatsonicusa.com with your vehicle details before purchasing.

What's in the box

• 2 x Acoustic outer foam rings (inner diameter 140mm x 140mm, outer diameter 194mm x 194mm)
• 2 x Acoustic inner pads (diameter 140mm, thickness 45mm)
• 2 x Beat-Sonic Encore vibration-damping pads (12cm x 12cm each)
• 1 x Roller applicator tool

Frequently asked questions

Do I need to replace my factory speakers to use this?
No. The DMS-SP301 improves the performance of your existing factory speakers by addressing the acoustic environment around them — not the speakers themselves.

Will this fit my aftermarket speakers?
Yes, as long as your front door speakers are 6.3 inches. The kit is designed for universal use with both factory and aftermarket 6.3-inch speakers.

Is installation permanent?
The adhesive backing provides a secure hold but is designed for inside-door installation. No drilling or permanent structural modifications are required.

Are the materials fire safe?
Yes. All materials used in the DMS-SP301 are fire safety approved.

Does this ship to Canada or internationally?
Yes. We ship to Canada and Mexico.