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Echo Absorber Acoustic Panel (Natural Blend – 1″x4’x4′)




1” thick Echo Absorber™ panels are our thinnest and most economical solution for high- and low-frequency sound reduction. With their low profile, they’re unobtrusive in small spaces and easy to install using our PL® Construction Adhesive.

Good for the Environment, Good for Your Health

Natural blend acoustic panels are made from 80% recycled cotton fiber and are VOC-free, mold- and mildew-resistant and Class A fire rated. They will not cause skin irritation when touched. Because of their density, they also have excellent thermal insulation properties and can actually make a room more comfortable, in addition to providing soundproofing against low-frequency noises.

Echo Absorber panels are sold by the sheet. 4’ by 4’ panels provide 16 square feet of coverage and can be cut or shaped to fit the dimensions of any room. 2’ by 4’ versions are also available in 1” and 2” thicknesses.

Typical Applications

When installed properly, 1” Echo Absorber panels have a noise reduction coefficient of 0.65, which means they absorb 65% of sounds across the frequency spectrum. This makes our 1” panels a good choice for soundproofing an office, gymnasium or other space with a lot of ambient noise. Though less ideal for recording studios, they do provide some level of low-frequency sound reduction and will absorb many of the nuisance reverberations that can muddy a recording.

For more information about potential applications and assistance putting together a package of products that’s tailored to your needs and your budget, contact Soundproof Cow directly.



* This product is not eligible for promotional offers.




Dimensions 4 ft. x 4 ft.
Thickness 1 in.
Coverage 16 sqft.
Quantity 1 sheet
Color Natural Blend
NRC Rating 0.65
Availability Usually ships in 1-3 business days
Technical Data Product Data Sheet
Installation Step-by-Step Instructions

* This product is not eligible for promotional offers.


Echo Absorber™ is a light weight, thermally bonded acoustical panel made from recycled cotton fibers, which offers excellent noise reduction qualities in low, middle and high frequencies. It is a cost effective solution for areas that suffer from extreme levels of noise caused by echo. Echo Absorber™ is Class A™ rated and will meet the most stringent building code requirements for flammability. Echo Absorber™ also has effective thermal qualities and does not contain Volatile Organic Compounds (VOCs), fiberglass or formaldehyde. This easy to install product is fungi, mold/mildew resistant. Use this product when echo is an issue and budgets are tight.

Product Availability

Features / Benefits

Acoustic Performance at a Great Price — Echo Absorber™ is one of the most cost effective, sound absorbing materials available. The natural cotton fibers are acoustically superior when compared to other man made fibers, such as fiberglass. The noise reduction performance of Echo Absorber™ products matches other higher priced material on the market. See acoustic data below.

Keep it Green — Echo Absorber™ is 80% recycled cotton and does not contain Volatile Organic Compounds (VOCs).

Quality — Echo Absorber™ is a thermally bonded, cotton panel made from high quality recycled fibers. Thermal bonding makes Echo Absorber™ products tear and impact resistant. Echo Absorber™ is resistant to fungi and mold/mildew.

Easy to Install and Handle — Echo Absorber™ is light weight and can be attached to a variety of surfaces. These panels contain no fiberglass and do not itch or cause skin irritation. Echo Absorber™ is attached to substrates with construction grade adhesives. For cutting or trimming, use a sharp utility knife. Echo Absorber™ is also available as a ceiling hung Baffle. See Echo Absorber™ Hanging Baffle.

Flexible — Echo Absorber™ is a flexible acoustic panel that can be installed on curved walls or wrapped around objects such as columns and posts.

Excellent Flammability Rating — Echo Absorber™ has a Class A™ flammability rating. This product passes most building code flammability requirements for exposed materials.

Made in the USA Made of 80% Recycled Materials


Great for:

  • Auditoriums
  • Band Practice Rooms
  • Broadcast Studios
  • Call centers
  • Compressor Enclosures
  • Computer and Server Rooms
  • Entertainment Facilities
  • Equipment Enclosures
  • Gun Ranges
  • Gymnasiums
  • Industrial Facilities
  • Machine Enclosures
  • Manufacturing facilities
  • Offices
  • Office Equipment Rooms
  • Utility Rooms
  • Warehouses

Acoustic Data

frequency 125 250 500 1K 2K 4K NRC*
1 inch .13 .22 .62 .85 .90 .96 .65

* NRC = noise reduction coefficient

Installation Details

Tools Needed: Caulk Gun, Tape measure, Level, Pencil

Materials Needed: PL® Construction Adhesive

Installation PDF

Echo Absorber™ Acoustic Panel Install

I really liked working with this stuff. It installed quick, wasn’t very messy, cutting it was a little harder than expected, but it works well so I’m not complaining. I would use this product again and again, and I’ve already started recommending it.
Joshua Pierson

We bought a new fridge hoping it would be quiet. We have a small house and kitchen noise can be heard in the living room as well. The new fridge is better but there is a high pitch buzzing sound. We leveled the fridge but that did not help. Then we insulated the walls around the fridge with the 1″ x 4′ x 4′ Echo Absorber Acoustic Panel. Also put some long, narrow pieces along the floor at the front and each side. (used two of these panels, total) Left 1″ of space for air flow between the Acoustic Panel and the back of the fridge. It worked!! I am very happy! thanks for the phone help and prompt delivery. Carmen

"The times I talked with you on the telephone and corresponded through email you have been very helpful and efficient. I would highly recommend Soundproofcow.com to anyone!" S. CIMINO, LA