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Echo Absorber Acoustic Panel (Natural Blend – 2″x2’x4′)




Our Echo Absorber line of products delivers excellent noise reduction across the entire frequency spectrum. Offering flexible installation options, the 2” thick, 2’ by 4’ configuration is one of our best-sellers for home and commercial use. Use it to soundproof a recording studio, home theater room, office, classroom or any other space.

The Natural Choice

Our natural blend Echo Absorber panels are VOC-free and made from 80% recycled cotton. As a result, they’re both good for the environment and Class A-rated for installation in areas where building code fire regulations prohibit the use of a synthetic product.

Echo Absorber™ panels can be mounted on any flat surface, where they will absorb unwanted reverberations and other noise. They can also be installed inside a wall to keep outside sounds from bleeding into a space. Because they’re made from dense cotton fibers, our natural blend Echo Absorber™ panels are also effective at trapping heat and can improve overall insulation for a more comfortable space.

Engineered for Long-Term Performance

2” thick natural blend echo absorbing panels may be one of our more economical soundproofing options, but that doesn’t mean they can’t be counted on for long-term performance. Our products are fungus-, mold- and mildew-resistant, and durable enough to resist tearing, even in high-traffic environments.

Order Online for Maximum Convenience

We have 2’ by 4’ sheets of our 2” thick Echo Absorber natural blend panels in stock and ready to ship in 1-2 business days. Place your order online or contact a Soundproof Cow representative directly for more information



Dimensions 2 ft. x 4 ft.
Thickness 2 in.
Coverage 8 sqft.
Quantity 1 sheet
Color Natural Blend
NRC Rating 1.00
Availability Usually ships in 1-3 business days
Technical Data Product Data Sheet
Installation Step-by-Step Instructions


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*
2 inch .25 .69 1.11 1.12 1.03 1.07 1.00

* 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

My generator was just way too noisy, I couldn’t take it anymore. I built an enclosure and lined it with this Echo Absorber, I was really impressed with how much it stopped the noise. Good product.

"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