How to place acoustic panels without guessing

Most rooms don’t need more material — they need the right material in the right places. Panel placement is less about ‘coverage’ and more about controlling the first few reflections that blur detail and weaken stereo imaging.

Start with one rule: keep the room symmetrical

If the left and right side of your listening position behave differently, the stereo image will always feel unstable. Before you buy anything, make sure your listening position is centered and your left/right boundaries are as similar as possible.

• Center your listening position between side walls.
• Place speakers at equal distance from side walls.
• Avoid having a window on one side and a hard wall on the other (or compensate with treatment).

Find first reflection points (the 10-minute method)

First reflections are the earliest wall/ceiling bounces that reach your ears right after the direct sound from your speakers. Treating them is the fastest upgrade you can hear immediately.

1. Sit at your listening position.
2. Have a friend slide a small mirror along the left wall at ear height.
3. Where you can see the left speaker in the mirror, mark that spot.
4. Repeat for the right wall (and ideally for ceiling using a mirror taped to cardboard).

Those marked areas are your highest ROI panel locations. If you do nothing else, treat these.

Add a ceiling cloud (it’s usually the missing piece)

In many rooms the ceiling reflection is as strong as the side walls, especially with hard floors. A cloud over the listening position often unlocks a noticeable jump in clarity and depth.

Then address the low end (don’t skip this)

If your bass feels boomy or inconsistent, that’s usually room modes and boundary buildup — not the speakers. Corner trapping and thicker absorption matter more than adding lots of thin panels.

• Prioritize corners first (front corners are often the best start).
• If the room is small, rear wall absorption typically beats diffusion.
• Treat in phases: listen/measure → add coverage → re-evaluate.

“A controlled room doesn’t feel ‘dead.’ It feels focused — like the sound is coming from the speakers, not from the walls.”

A clean starter layout (most rooms)

• 2–4 panels at first reflections (side walls)
• 2–4 panels as a ceiling cloud
• Bass trapping in at least two corners
• Optional: a rear-wall panel if you sit close to the back wall

If you want, Audio Lab can map this layout on top of your room geometry so you’re not guessing: panels, speakers, and constraints (doors/windows/TV) all included.