Udderly Quiet® Acoustic Panel – 400 Series

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Udderly Quiet® Acoustic Panel – 400 Series

Do you have a situation that requires Acoustic Treatment but you need a Low Profile material? Then the 400 series is the right Acoustic Panel for you. Thin, Durable and Tack-able.

Perfect for: Areas with limited Wall Space or Depth. Common applications for these Acoustic Panels include; Offices, Multi-Purpose Rooms, Gymnasiums, Home Theaters and Homes.

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Size Availability Up to 4 ft. x 10 ft.
Thickness 1/2 inch
Tolerance +/- 1/4 inch
Core 10 lb. Acoustical Glass Mineral Wool
Covering Acoustic Fabric
Edge Detail Resin Hardened
Edge Profile Square
Mounting Adhesive, Hook and Loop
General Application Walls and Ceilings
Mounting Surface All Surfaces including Drywall, Brick & Concrete
Flammability Class A™ – Does not exceed 25 Flame Spread, 50 Smoke Developed when tested in accordance with ASTM E84, UL 723 and NFPA 255.
Indoor Air Quality Certified as a low emitting product by the GREENGUARD Environmental Institute to both the GREENGUARD Certification Program and the more stringent GREENGUARD Children and Schools standard.


The Udderly Quiet™ 400 Series is our exclusive line of ultra-thin acoustic panels. Perfect for any application in which a low profile is required, the 400 Series nevertheless offers exceptional sound-deadening properties while remaining affordable enough for any budget.

The 400 Series achieves this impressive feat thanks to its medium-density, 10-lb. acoustical mineral wool core. At just ½” thick, 400 Series panels can be installed on any wall or other flat surface. They are ideally suited for installation in home recording studios, where making the best use of space is an important priority. Because of their dense inner core, 400 Series panels also offer good impact resistance — another ideal characteristic in small spaces where collisions with people, hardware and instruments are common.

Other potential applications for our low-profile acoustic paneling include home offices, classrooms, broadcast studios and more.

Customizable to Suit Your Requirements

400 Series thin acoustic panels are available in a range of sizes up to 4’ by 10’. Any purchase can be customized with your choice of vinyl or fabric coverings. We can work with any color of material to create a finished product that meets your design requirements. Alternately, shop our in-stock collection of low-profile panels in various popular sizes and colors.

Installing our low-profile acoustic panels is easy. Because of their light weight, they can be glued permanently in place using our PL® Construction Adhesive or fixed temporarily using Z-clips, Velcro or another fastener. For more information about your options, contact the Soundproof Cow team directly.

Wish you could hear the difference our acoustic panels make before purchasing?
Check out our sound test!

Clap Sound Wave Listen

The 400 Series Acoustic Panel is Thin, Durable and Tackable. Choose from a large variety of fabric options to decorate your space.

Size Options

  • Up to 4 ft. x 10 ft.

Thickness Options

  • 1/2 inch

Popular Fabric Options

Top 5 FR701 fabrics Click to Enlarge
FR701 Eggshell
FR701 Wheat
FR701 Quartz
FR701 Grey Mix
Grey Mix
FR701 Black
Adobe Reader
Top 5 Anchorage fabrics Click to Enlarge
Anchorage Birch
Anchorage Sunshine
Anchorage Goose
Anchorage Asteroid
Anchorage Fossil
Adobe Reader
ALL Anchorage

Ordering Information

Click the “Request a Quote” button to tell us about your project. One of our Acoustic Pros will contact you when your quote is ready. Quotes usually take about an hour!

If you need a quote quickly and would rather talk to a warm body, then dial 1-866-949-9269. No pushy sales guys…promise.

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Build My Acoustic Panels OR Contact Us

Superior Acoustic Performance — Udderly Quiet® Acoustic Panels are our premium sound absorption product and can be used anywhere reverberation (echo) is an issue. Our acoustic panels will improve speech intelligibility, improve production and improve any listening or recording environment. Udderly Quiet® Acoustic Panels absorb noise generated at low, mid and high frequencies.

Exceptional Quality — Udderly Quiet® Acoustic Panels are meticulously hand-made by experienced craftsmen that take pride in the product they build. Only the highest quality materials available are used to make this highly finished professional product.

In-stock Options — We have a large variety of Udderly Quiet® Acoustic Panels in-stock with different fabric options and in multiple dimensions. Most of our in-stock acoustic panels are shipped the same day they are ordered and arrive at your project in three business days.

Ease of Installation – Udderly Quiet® Acoustic Panels are light weight and can be attached to a variety of surfaces. Basic hand tools and a limited amount of construction know how is all that are needed to ensure a proper installation. Udderly Quiet® Acoustic Panels can be cut or trimmed on the job site with simple hand tools. Our Acoustic Panels can be mounted permanently with adhesive or temporarily with Hook & Loop or Z-Clips.

Endless Design Potential — Udderly Quiet® Acoustic Panels are custom built to your specifications. Architectural interest is added by ordering our panels with square, beveled, mitered or rounded edges.

Fabric Covering Variety — Udderly Quiet® Acoustic Panels are available with an endless variety of fabric options. Choose the fabric color and texture that best matches your existing décor. If desired, we will match your fabric of choice.

Durability — Low Profile Udderly Quiet® Acoustic Panels have a very dense Acoustical Glass Mineral Wool core that resists impact.

Excellent Flammability Rating — Our Udderly Quiet® Acoustic Panels have a Class A™ flammability rating. This product passes most building code flammability requirements for exposed materials.

Versatile — Udderly Quiet® Acoustic Panels are a great office accessory for posted messages or need to know information. Panels covered with the FR701 fabrics work with hook & loop Velcro® and are tackable.


Product Data Sheet

Green Information:

Our Acoustical Glass Mineral Wool is made with 50% Recycled Post-Consumer materials. In other words, the same bottles you recycle every week!

The other 50% of our Acoustical Glass Mineral Wool is made from one of the most abundant renewable resources on the planet- sand.

The Binder used in the Acoustical Glass Mineral Wool reduces embodied energy by 70%, which means there’s 70% less binder agent needed when compared to other glass wools and acoustic fiberglass products.

All of our Acoustic Fabrics are 100% Recycled Polyester.

Acoustic Data

THICKNESS COVERING DENSITY 125 250 500 1000 2000 4000 NRC*
1/2 INCH fabric 10 lbs .04 .11 .38 .80 .98 1.04 0.55
1/2 INCH vinyl 10 lbs .00 .15 .56 .93 .94 .78 0.65

* NRC = noise reduction coefficient

Acoustic Panel Edge Profiles

square edge acoustic panel

Acoustic Panel Corner Options

square corner acoustic panels rounded corners acoustic panels


What exactly is the 400 Series Udderly Quiet™ Acoustic Panel?

The Udderly Quiet® 400 series Acoustic Panel consists of a 10 lb. Acoustical Glass Mineral Wool core that is Impact Resistant. The Core is then wrapped with an Acoustic Fabric of your choice.

What is an Acoustic Fabric and what are my options?

An Acoustic Fabric is a fabric that is considered acoustically transparent. All Acoustic Fabrics have whats called an “Open Weave” which allows sound to travel through the fabric material and into the sound absorbent core. There are 1000’s of Acoustic Fabric Options.

Do I have to use one of your fabrics or can I provide my own?

These are your panels! We will wrap them in whatever fabric you choose. All we ask is that you send us a 36 inch x 36 inch sample of fabric so we can test it out. We want to make sure the adhesive bonds the materials properly and also make sure the adhesive doesn’t “bleed” through the fabric and create spots on the face of the panel.

How Big can I get my Acoustic Panels?

The largest we can construct a seamless 200300 and 400 Series Acoustic Panel is up to 4 ft. x 10 ft. For Larger Acoustic Panels, check out the 250 Series and the 350 Series. Those models have Aluminum Frames which allows for larger panel construction.

What Shapes are available with the 200 Series Acoustic Panels?

These panels are totally customizable. We can make anything from rectangles to circles to free-form shapes. Some of our clients have provided patterns of modular designs. Check out our Udderly Quiet® Acoustic Panels Gallery for some creative ways to use these Acoustic Panels.

What are the Most Economical sizes for Acoustic Panels?

Any Panel where one of the dimensions is 4 foot. 2 ft. x 4 ft., 4 ft. x 4 ft., 4 ft. x 5 ft., 4 ft x 8 ft. and 4 ft. x 10 ft. are the most popular and economical sizes for Acoustic Panels.

What Edge Profiles are available for the 400 Series Acoustic Panels?

We offer these panels with Square edge.

How Many Acoustic Panels do I need?

We use Proprietory Acoustic Software and information from you about your space to answer this question. We use three main criteria to determine how much acoustic material is needed. First, we need to know the Dimensions (Length, Width and Height) of the Room or Space that is being treated. Typically, the larger the space the more Acoustic Panels are needed to drop the reverb time to a preferred level.

Second, we need to know the existing Wall, Ceiling and Floor construction materials. All Construction materials like Drywall, Concrete, Brick, Metal, Wood and Carpet have industry accepted inherent Acoustic Values that affect the acoustics of the space. We know these values and use them to help determine how much Acoustic Material is needed to get the desired results.

Third, we need to know How the Space is being used or the function of the space. The use of the space greatly affects the amount of absorption materials needed to achieve the desired results. Different spaces require different reverberation times. For example, A Recording Studio requires a much lower reverb time than an Office environment. A Restaurant requires a different reverb time than a Home Theater. We know the Industry accepted reverb times for a multitude of spaces and use these times when determining the amount of acoustic coverage.

The Fastest and most thorough way to find out how many panels you need is to call our Acoustic Team at 1-866-949-9269. Usually, you will have your answer in few short minutes. OR check out our Free Online Acoustic Analysis. Fill out the form and one of our consultants will respond!

How Much do these Acoustic Panels Cost?

The cost of this product varies greatly due to the multitude of sizes, configurations, covering options and the fact that each project is unique in terms of the amount needed to get the desired results.
The Best way to get a quote is to contact our Acoustic Team at 1-866-949- 9269. For most projects you will have a quote in hand in a few minutes.

Another viable option is to complete your Free Online Acoustic Analysis. A member from our Acoustic Team will contact you via email when your quote is ready!

How Long will it take to get my Acoustic Panels?

On average, it will take about 3-4 weeks from the time you place your order to delivery. However, our lead times may vary depending on production flow. Contact a member of our Acoustic Team to find out what the current Lead Time is for Acoustic Panels. 1-866-949-9269.Need it sooner? No worries. We can expedite orders to be delivered in 10 days!



Adhesive Panel MountingAdhesive mounting is ideally suited for permanent applications requiring speed and ease of installation. This type of installation requires little to no layout time depending on various field conditions. Use this method if there is a potential for impact or other stresses. The adhesive method provides the strongest bond between panel and wall.

Hook and Loop

Hook and Loop Panel MountingHook and loop mounting is suggested for temporary applications where panels may be removed and relocated for future use. This method is not intended for constant panel removal and re-hanging. This type of installation demands a moderate amount of planning and layout before the panels are placed on the wall. Panels mounted with the hook and loop method cannot be subjected to peel away stress as this may cause failure of panel to wall bond.

Customer Reviews

Average Customer Ratings: 4.8 (34 reviews)

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, PA

I have emailed a lot of different manufactures and I have to say your customer service is head and shoulders above all of them. I emailed your company at about 9pm my time and when I woke up the next morning you had already answered my question and then the follow up was a few hours later. I am impressed. Thanks a lot for the quick turn around!

– E. Gustafson, NV

I just wanted to send a quick thank you for your rapid response and helpfulness. I very much appreciated it. You have been responsive in every way all through the process. It has been a pleasure doing business with you and your company.

– T. Alexander, CA

I just wanted to let you know that in the end, sealing the air spaces on this door worked just fine and took care of the problem.

I really appreciate you taking so much time to share your expertise with me, and in particular recommending I try the simpler solution before investing in more expensive noise barriers. That is a big credit to you and your business.

– Mike

Need a Quote Quickly?

If you need a quote quickly and would rather talk to a warm body, then dial 1-866-949-9269. No pushy sales guys…promise.

Call Us: 1-866-949-9269 Contact Us

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