Expert Service 1-877-289-7664 [Hours]

Black Friday Sale


Mega Bulk Pack - 80 Square Feet of Sound Dampening Material (Twenty 18" x 32" Pieces)

List price $499.98

You Save: $320.00 (64.00%)


with warranty

+ FREE Shipping in US 48

Order within 91 hrs 33 mins to ship 11/30

Arrives by Wednesday, Dec. 2 to zip 20147

Add an Extended Warranty

SquareTrade Product Warranty
Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

In Stock

Arrives by Wed, Dec. 2

Item Added to Cart


Mega Bulk Pack - 80 Square Feet of Sound Dampening Material (Twenty 18" x 32" Pieces)


Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection

Window Handle Removal Tool

Universal window handle removal tool helps remove the door panels on cars with manual windows.



Don't see the accessory you're looking for?
View all available accessories for the NVX SDMP80.

Get FAST answers from customers ASK a Question See questions answers

NVX Store

Benefits of Sound Damping

Sound dampening material is key to reducing the rattles and shakes in your car. It effectively reduces the amount of road noise that is let in through the thin panels of your vehicle. It also lessens vibrations that are created by playing music through your speakers. It works by adding weight to the desired panel, which lowers the resonating frequency. You will notice by adding this material to your car, your sound system will likely get noticeably louder. If you have subwoofers, this is the perfect kit for your vehicle.

Thicker Than the Competition

NVX is one of the world's leading manufacturers of sound dampening material, and is up to 30% thicker than the other brands. Don't pay ridiculous amounts of money to kill those rattles, when you can get everything you need from NVX for a fraction of the price. With the SDMP80 dampening material, you will notice a higher quality sound from your system as well as a drastic reduction of road noise. With 80 square feet of material, you will have enough to cover all of those problem areas that have been bothering you for so long!

Product Features

  • Twenty 18" x 32" Pieces of Sound Dampening Material
  • 80 Square feet total
  • Made from 100% Butyl Rubber
  • Eliminates road noise
  • Quiets vibrations
  • Increases sound quality and output of car audio system
  • Stops rattles
  • Increases SPL
  • Reduces heat
  • Easy to form aluminum conforms to desired area of vehicle with ease
  • Four step peel and stick design for easy installation
  • Up to 30% thicker than the leading competitors
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Dimensions (each piece): 18"L x 32"W

Sound Dampening Specifications

Installation Location
This is the area of the car that the sound dampening kit is designed to be installed.
Entire Car
Material Thickness
This is the thickness of the material, measured in inches.
Total Amount of Material
This is the total amount of material that is included in the package. It is measured in square feet. On packages that include several smaller pieces, this number combines all the pieces together.
80 square feet
Material Use
Use of material whether it be used for heat protection, sound absorption or decrease in vibration.
Vibration Dampener
Secondary Use
This is the secondary use of the product. Many products that block road noise can also serve as an effective heat barrier, and vice versa.


Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Accessory Tools and Products

Accessories added

Window Handle Removal Tool

Universal window handle removal tool helps remove the door panels on cars with manual windows.

Your Price $9.99

Belva Five Piece Installer's Panel Removal Tool Kit

Assists in removing door panels, vehicle upholstery, and many other parts of the car.

Your Price $11.99

NVX SDRLR1 Rubber Sound Dampening Roller

2" Professional Heavy Duty Roller for Sound Dampening

Your Price $4.99

Browse 1 question and 5 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Purchased for my 2013 Dart and it's worked wonders!
Jordan V on Nov 2, 2015
price/hopefully better than or equal to dynamat
paul v b on Oct 11, 2015
Id rather keep the sound inside and the diesel engine sound out.
joseph m on Oct 31, 2015
Jose T on Jan 16, 2015

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: NVX SDMP80

  • NVX Audio Premium Sound Dampening Material
  • NVX Audio Sound Dampening | Test & Intallation Demo
  • How to Install Sound Dampening in a Car