Archive for category Home Theater

Absorption & Diffusion – The Construction Specifier

For the May 2022 edition of “The Construction Specifier,” Acoustics First was asked to illustrate the use of absorption and diffusion in creating optimal acoustic spaces. The article is a great reference for understanding the types of acoustic absorbers and diffusers, as well as some use scenarios like offices, critical listening spaces, and larger communal spaces.

Note: This version has been edited and the advertisements are removed. The full published version of the May 2022 digital edition can be found on The Construction Specifier’s website here.

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Sonora® LFC – Low-Frequency Control Panel

Bass frequencies are difficult to control… and there is sometimes a tendency to overuse standard, broadband panels to try to absorb everything in order to get rid of that bass. However, this method is unbalanced and has the side-effect of leaving a room sounding muffled and boomy.

Why?

Physics! High frequencies are easier to absorb than low frequencies. So, when you ONLY use broadband absorbers, they easily remove the high frequencies and leave more of the lows. Overusing broadband absorption in a large performance space can be a disaster – leaving an environment lacking energy and feel – many describe this condition as a room sounding “dead.” (Not good!)

So how can you treat the boomy bass without killing your rooms with too much broadband absorption? Can you just take out the bass? Unfortunately, it is impossible to ONLY absorb the bass, but we can LIMIT the amount of high frequency energy that we absorb to balance out the response.

Acoustics First® presents… the Sonora® LFC – Low-Frequency control panel.

Looks like a standard Sonora® panel on the outside, but it’s completely different under that fabric!

The Sonora® LFC looks like a standard Sonora® Wall panel, but looks can be deceiving! At 4-1/8″ thick, it is virtually indistinguishable from a High-Impact Sonora® panel – however the interior structure of the LFC is optimized to attack the bass frequencies and smoothly roll off the high frequencies. Let’s take a closer look at the performance difference between the Sonora® LFC and the standard Sonora® panel.

Standard Sonora® 4″ Panel in red vs. the Sonora® LFC in blue.

When you look at the performance charts, you will notice that the standard 4″ Sonora® panel starts to “roll-off” in the lower frequencies below 125 Hz – it still absorbs them, just to a lesser degree. We designed the Sonora® LFC panel to focus on those frequencies below 125 Hz – while allowing the other treatments to handle the rest! This allows you to use fewer broadband panels, and still have some high-frequency energy for diffusers to spread around – thus creating a more balanced acoustic environment.

The Sonora® LFC is an engineered solution using the same high-performance materials as our other products, but combining them in a way that optimizes them for Low-Frequency Control – hence Sonora® LFC! The magic is in the way those materials are used.

The optimized construction of the Sonora® LFC Panel!

All of the materials used in an acoustic environment have a function – “Diffusers,” “Absorbers,” and “Bass Traps” are all general descriptors of product functions. Some diffusers are also Bass Traps. Some bass traps are also broadband absorbers. Some diffusers use absorption for amplitude grating. By combining a dampened, resonant trap with multi-density fiberglass, the Sonora® LFC focuses on making acoustic spaces more balanced. For controlling the bass without sucking the life out of a room, the LFC Panel is an outstanding tool for refined Low-Frequency Control!

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The HiPer® Panel and Ken Fritz’s Dream

Ken Fritz completes his dream theater, and behind the scenes is the HiPer® Panel by Acoustics First®

There are many home theaters of note, but rarely is one created (at this scale) by the singular dream and dedication of one man. Ken Fritz involved Acoustics First® early in the project to perform acoustic measurements of the space, and his theater became the first large-scale installation of our newly developed HiPer® Panel. From beginning to end, Ken says that he spent more than 25 years on the realization of his dream – and others have taken notice.

Ken’s vision had a scale that is rarely seen in home theaters.

There have been numerous write-ups of Ken’s theater, which was constructed (from the ground up) specifically for this purpose. The walls are hurricane grade block construction, the roof-line is constructed to improve the acoustics, the walls are clad in HiPer® Panels, the bass emanates effortlessly from in-wall enclosures – and just look at those custom built arrays that Ken designed and constructed by hand! This project is more than just a labor of love, it is an obsession with excellence.

Even a custom-designed and hand-built turntable feeds Ken’s dream environment.

This obsession covers every aspect of the room and the system, with everything being either built by hand, customized to his specifications, or simply the best you can get! If there is a “home theater mountain,” Ken built a skyscraper at the summit – but don’t take our word for it…

You can watch the one-hour documentary telling the story behind the dream – in Ken’s own words.

Watch the documentary of what has been called “The Best Stereo System in the World.”

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DIY – Nouveau™ Home Theater Back Wall

It wasn’t a difficult install, but these Nouveaus made this space sing.

Adding Nouveau wood diffusers to a home theater is not as daunting a task as it may seem, and can be done with a little planning and a few tools.  This install used an ingenious mounting method to ease the final install.  Instead of mounting the z-track to the wall directly, it was mounted to sheets of plywood which were hung with Gorilla/Hercules hooks.

The first task was to pick a stain. You can use the back of a plank to get an idea of how the poplar will respond to the different options.  Poplar has a very interesting and varied structure that will take stain differently than some other woods. Darker stains may be more consistent, but don’t reveal the character and variation in the wood.  This install chose a Smoke Gray which grayed out soft areas and browned the harder heart wood. A semi-gloss clear coat was used to finish.

Using the back of the Nouveau, you can see how the stains will “take.”

While the stain dried, the mounting plywood was cut down to hide behind the planks. Four hanging straps with eye-loops were then added to the top edge of each of the plywood sections, and spaced to avoid studs.

Industrial hanging eyelets were added to the top edge of the sheets to make them easy to level and hang with the Gorilla Hooks.

The Z-track that would normally be installed on the wall was installed on the opposite side of the plywood.  This will make it easy to hang the Nouveaus onto the sheet after it’s on the wall.

Z-Bar track was added to the top and bottom of the plywood sheet to accept the z-bars that are going on the back of the finished Nouveau planks.

After the Nouveau planks are finished with the staining, and left to cure for a few days, they are ready to have the mating Z-bars attached to the back.  They are installed with the same spacing as the Z-tracks on the plywood sheets.  This will make it easy to align them after the plywood is hung on the wall.

The z-bars are measured, marked, and installed at the same spacing as the z-tracks on the plywood.

The Gorilla/Hercules Anchor hooks are rated to around 50-60 lbs each. The Nouveau planks are roughly 25lbs each (at 48 inches) and each section has 4 hooks supporting 4 planks plus the weight of the 3/8″ plywood.  The hooks are installed so that the plywood will hang level – with the weight distributed evenly across all four hooks.

When installed properly and leveled, each of these hooks will hold up to about 50-60lbs each. In this configuration, they should only need to support about half that.

Finally, the Nouveau planks are installed into the Z-Tracks on the plywood, and moved into position.  Because the z-bars were installed square and level, there is no shifting, and they hang true.  The undersized plywood sections disappear behind the planks leaving the impression that the planks are floating slightly off the wall.

The install doesn’t look much different from a direct mount z-track installation, with a small gap against the wall.

While this mounting method may not be ideal for every scenario, this was an effective way to install 8 Nouveau™ planks with only 8 small hook holes in the wall.  These can now be installed in apartments or temporary environments with minimal damage to the existing walls – and once you are done, they’re easy to take down and reinstall somewhere else. You just need a level!

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Aeolian™ Diffuser – Mash up

Here’s one of the first install pics of our new Aeolian™ Sound Diffusers, installed in a home project studio. Also note the Art Diffusor® Models F & C, in the ceiling and behind the speakers respectively. This is obviously a diffuser connoisseur’s room.

Below shows the room after the Sonora® products are installed.

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