Acoustic Panels - Acoustimac

Acoustic panels are essential for optimizing the sound quality in any recording or listening environment by absorbing unwanted sound reflections. This comprehensive guide will show you how to build and install these panels effectively.

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So here are the tools you will need:

• Hammer/nails – to construct the frame

• Glue

   – to secure the insulation within the frame

• Staple gun/scissors

   – to secure and trim the outer fabric

• Mounting brackets

   – to mount the finished panel to the wall

Next, here are the materials you will need:

• Wood – to construct a standard-sized 2ft by 4ft frame.

• Fabric

   – to cover the exposed insulation and give the finished panel a polished look.

• Owens Corning 703

    – a special type of fiberglass that costs about 1/5th the price of acoustic foam and is equally effective.

You can easily buy wood and fabric at any local home improvement store, but Owens Corning 703 might need to be ordered online. Once you've got your materials, here's a great video that walks you through the entire building process step-by-step:

Now, let's move on...

How to Mount Acoustic Panels in the Corners of the Room

Once your acoustic panels are built or received, it's time to mount them. Start by covering the area directly behind your studio monitors, especially if they have a rear-facing bass port. Then move on to the dihedral corners, shown in blue in the diagram below.

For commercial foam, fold your panels around the corner and leave an air gap for added low-end absorption. For homemade panels, position them diagonally across the corner.

Remember, don’t use all your panels just yet because there’s still more area to cover on the walls.

How to Position Acoustic Panels for Maximum Wall Coverage

The ideal wall coverage can vary between 20-80%, depending on your room's acoustic problems. Constantly re-test the acoustics after each new panel using the clap test to know for sure. Adding more panels than needed can make the room sound uncomfortably dead.

In most home studios, the number of panels is fewer than ideal. To get maximum results from fewer panels, cover an area on one wall and leave its reflection point open on the opposite wall. One panel is sufficient to kill standing waves in that spot. If confused, refer to the diagram for clarity.

How to Mount the Panels Without Ruining Your Wall

In home recording studios, where acoustic foam installations are unlikely to be permanent, there's always the worry of damaging your walls and the foam itself. You need an adhesive strong enough to support the foam but weak enough to be removed cleanly.

Since every wall and paint job is different, no single solution works in all cases. Many products exist to solve this issue. Here are three adhesive strength options:

1. Auralex TubeTak Pro – (Amazon/B&H/Thomann)
2. Auralex FoamTak – (Amazon/B&H)
3. Auralex EZ-stick – (Amazon/B&H)

TubeTak is the strongest but hard to remove. EZ-stick is the weakest and may not always hold well. In my opinion, FoamTak offers the best compromise.

However, FoamTak and other spray-on adhesives can leave a mess once removed. Here's a trick I discovered:

A DIY Hack I Discovered Through Years of Trial and Error

First, cover both the wall and the back of the foam with clear packaging tape. Then spray the FoamTak or similar adhesive in between. You'll be able to mount your panels without leaving any adhesive residue. Test the tape on a small wall area first to ensure it can be removed without damage.

If this method seems too complicated, try impaling clips, which screw into the wall and hang your acoustic foam by "impaling" them. This method avoids adhesive altogether.

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