ACDA-10 Activated Carbon Diaphragmatic Absorber

2 customer reviews


Bass should never blur with your other instruments or fade to the background of your music. Bass was made to stand out! But if you’ve been using traditional bass trap technology, you’ve probably been missing out on the clear, powerful bass you crave. That’s why we developed the ACDA-10: an activated carbon diaphragmatic absorber unlike any other!

Nothing makes your bass sound more defined than the ACDA-10. Every note will come to life like never before. When your bass is more defined, all your music will sound so much better!

If you order the ACDA 10 today you will also get:

  • A free 30 minute phone or video consultation on your room mode issues with me, the products inventor, Dennis Foley
  • A 100% risk free 30 day money back guarantee
  • And castors so you can move the units in and out of your room if your listening room serves multiple purposes.

Request Quote

These units have special handling and shipping requirements, due to their weight and size. Please call us on 520-392-9486 or click HERE to contact us so we can assist you further.

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The Superiority of Diaphragmatic Absorption

You can invest an exorbitant amount into your amp, speakers, and hi-fi and still miss out on the emotional connection you want to have with your music. The most important investment you can make for your sound is the ACDA-10! Why? Because diaphragmatic absorption is the most powerful absorption technology available.

Recording studios all around the world have proven that if you want great music, you have to start with diaphragmatic absorption. After years of making the best in the industry sound amazing, it’s still the best way to create music! And no one does this technology better than we do.

Product Image of an ACDA-12 Activated Carbon Diaphragmatic Absorber
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How Acoustic Fields Perfect Diaphragmatic Absorption

Although Acoustic Fields didn’t invent diaphragmatic absorption, we’ve modified it to be the most powerful technology on the market. If you’re going to invest in diaphragmatic absorption, you want the technology made by a company with 25 years of experience who’s worked with some of the biggest names in music. In fact, this technology alone took over eight years to develop!

A lot of manufacturers don’t give low frequencies much attention. But Acoustic Fields developed this technology with low frequencies especially in mind. With the ACDA-10, you’ll get low frequency absorption from 30 Hz. to 200 Hz. The rates and levels of low frequency absorption created by these activated carbon diaphragmatic absorbers have never been achieved by any other technology on the market!

Almost every room needs low frequency energy control. If you’re overlooking it, you’re going to produce music that falls flat.

Independently Tested & Verified

Our low frequency absorption rates have been independently tested and verified by the world famous Riverbank Acoustical Laboratories.

Experience A New Dimension to Your Music

Acoustic Fields’ goal with the ACDA-10 isn’t to “trap” bass. It’s to effectively manage the bass notes and get a smooth frequency response curve. Suddenly your music will sound so much crisper. You’ll feel more connected to your music than ever before!

The ACDA-10 has seven layers of material, which is more than your typical diaphragmatic absorber. Each layer is separated with a damping compound. Why do we put so many layers into the absorbers? Because it’s important for these units to be as rigid as possible. The more rigid the absorber, the more sound it will produce.

The thickness and density of our activated carbon diaphragmatic absorbers are also important because it makes the units move. That doesn’t mean you’ll see the ACDA-10 moving like a speaker. But if you were to conduct a vibrational analysis reading, you would see the absorbers are indeed moving!

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How the ACDA-10 Works

In short, when you have one of these units in your recording studio, sound energy strikes the walls of the cabinet and the activated carbon in the cabinet. Then some of the energy leaves the cabinet. But, of course, it’s a little more complicated than that.

Low frequency waves are long. They have lots of energy. Because of that, it takes a lot for them to get slowed down. A standard diaphragmatic absorber only uses one wall to slow down those sound waves. But Acoustic Fields uses two! When sound energy strikes the ACDA-10, it has to go through two different walls. It gets slowed down going through wall number one and even more slowed down going through all number two.

The activated carbon diaphragmatic absorbers target low frequencies in the 30 Hz. to 200 Hz range. However, it can also be effective at middle and high frequencies. All you have to do is apply our acoustic foam, mini-diffusers, or both to the face of the cabinet. This will allow you to tackle frequencies up to 6,500 Hz.!

With this simple modification, the ACDA-10 will become a low frequency absorber, mid frequency absorber, and high frequency absorber all in one! You’ll get broadband linear absorption from 30 Hz. to 6,500 Hz. You won’t find such a broad absorption range with any other technology on the market.

Why Activated Carbon Works

After the energy passes through both walls and enters the inside of the cabinet, it will come into contact with the activated carbon. The fact that we use activated carbon in these absorbers is so important! Other cabinets are filled with building material or mineral fiber, we use high-porosity carbon.

Carbon has a very high level and rate of absorption. Every gram of activated carbon has 2,000 square meters of surface area! That’s significantly bigger than alternative materials. Each of these units contains 65 pounds of carbon!

The result of using this product is a smoother frequency response curve. Just like with our other cutting-edge technologies, the ACDA-10 is tested by the Riverbank Acoustical Labs, the most trusted name in acoustical testing.

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How This Technology Makes Your Life Easier

Unlike other technologies, the ACDA-10 offers you flexibility that makes your job easier. It’s a moveable unit you can wheel around your listening room and control room.

The ACDA-10 also simplifies mixing. You’ll never have to second guess what you’re hearing on a recording again!

Acoustic Fields goes above and beyond to help you make great music with our products. We offer every customer a free 30-minute phone or video consultation with Dennis Foley who not only is the master behind Acoustic Fields but also the inventor of this product. We also offer a risk-free 30-day money back guarantee.

State Of The Art Acoustic Treatment Technologies

Why Choose Acoustic Fields?

Money Back Guarantee

We stand 100% behind our product performance. If you are unhappy, we offer a 30 day money back guarantee.

Worldwide Shipping

We ship to any country in the world. Please get in touch to discuss shipping costs for larger orders.

FREE Room Analysis

There's no one size fits all in room acoustics. Take advantage of our room analysis to find solutions that are tailored to your needs.

Placement Instructions

We provide support and placement instructions for all orders through both email and phone. Get in touch today.

Made in the USA

All our acoustical products are handmade to the highest quality standards by experienced craftsmen in the USA!

Used By The Pros

Our technology is used by award winning audio professionals and renowned companies in the industry.

Never Settle on Sound Quality.
Order an Activated Carbon Diaphragmatic Absorber from Us!

Stop putting up with music that lacks the definition and emotional connection you crave.
Invest in diaphragmatic absorption. Order your ACDA-10 from Acoustic Fields today!

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Additional information

Weight 225 lbs
Dimensions 30 × 60 × 16 in


2 reviews for ACDA-10 Activated Carbon Diaphragmatic Absorber

  1. Joe Salvatto

    Hi my name is Joe Salvatto from Salvatto Sound. We are a company that specializes in boutique studios here in the New York City Tri-State area.

    I came across this product designed by Acoustic Fields. Its called the diaphragmatic absorber. I read about it and was very intrigued with its capabilities. I had the opportunity to speak with Dennis, it’s designer, and was convinced that it was definitely something we could use on our installations.

    It’s a rather small enclosure, 24″ x 48″, but it’s abilities are actually beyond my expectations. It has the capabilities to absorb frequencies down to the 30 cycle range.

    So far we’ve used it in one room and have the intensions of using it in our next two installations.

    Everything Dennis said it would do, its done and then some.

    I was happy to comply with the companies request which was, upon purchasing the plans online and also signing a non-disclosure agreement, we have to purchase the charcoal absorbers, which is the internal workings of the device, directly from them, which they actually provided to us with a rather timely fashion. It didn’t take too long.

    The effectiveness of the box is exponential, the larger the room, the more boxes you need. But in the end the result is nothing short of amazing. Once you introduce the absorbers into the room, the effects are noticeable immediately.

    This device has added a paint brush to my box that I never would have thought I’d be able to have in this small of an enclosure. I’ll be using them from now on and I’m sure once you get a chance to use them, so will you.

    This is Joe Salvatto from Salvatto Sound. Very nice to talk to you.

  2. Danny Wyatt

    This room was eight or nine months in the making but it’s the Acoustic Fields bass traps that really made this room sing. Now it’s really quite a musical room that’s the way I would put it.

    Because I’m in New York City, because I’ve been doing this for three decades, because I have a lot of Rockstar engineer best friends, you see them on the Mix Master Wyatt show, Chris Gehringer, Luca Pretolesi, you know all kinds of top engineers doing number one records in the country I get to move around some of the best rooms, really on the planet, and when they come up here they’re like “oh my gosh, this is amazing, you can hear everything in this room!”

    You can hear extremely well sitting in the client couch and its, you can hear amazingly well sitting in the mix position and we used to have something too where if you stood up you’d get a slightly different low frequency response that also has gone now.

    And I’m really happy to say, and I’m an endless fiddler, that it’s really in a place where I wouldn’t change a thing and when people come in, I had the musical director for Chris Brown’s world tour here yesterday who is out on Lady Gaga’s Monster Ball Tour, top, top producer musical director and he was like “this room sounds insane!” He was like “I haven’t heard a room sound as good as this in a long time”. And he gets also gets to walk in the top rooms.

    So I’m extremely happy with it. This room wasn’t done until the Acoustic Fields bass trap technology entered the room and then once we did exactly what was proposed by you Dennis the whole thing snapped into place.
    So I couldn’t, I really just, I couldn’t be happier.

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