Planar Speakers and Diffusors

I have the Clarisys Speakers. They are the Planar type. I would like to treat the wall behind the speakers. I have been told not use any type of sound absorber, so I am interested in the GIK Acoustics Q7d Diffusor

I have a large 85" TV in between the speakers, so the only area that can be treated is behind the Planers. Check out my systems page.

I have yet to find a review of these diffusors, so has anyone used these and can comment on the effectiveness?



Check out AWOL short throw laser projector and mobile screen that hides into a 4'''x5"x115" box on floor. It gets out of the way completely for serious audio listening, and rises up between speakers for AV entertainment. I use Apogee Divas with JL subs. The ability to listen and watch in 4k HD 100" diagonal screen is marvelous! Great products! I wish I could download pics or a video of this!

I use a wool blanket over my 65” as well. I’ve been a Martin Logan user since 1979, and still using them. 

Ozzy, I have a pair of refurbished Duetta Signature which are similar to your Clarysis. Please avoid all theorical acoustic suggestions coming from non-planar speaker owners. Panel speakers have a figure 8 diffusion pattern and require specific acoustic solutions. As Suncoast Audio suggested, only use diffusers behind your panels. This is what I have successfully using for the last 10 years. You will enjoy a larger and deeper soundstage with increase imaging.

Personally, I have built my own wood diffusers using 2x2 inch square studs. You can find this DIY diffuser recipe on the web. I have installed them at ears height directly behind the mid/high ribbons. Afterwards, I installed the same DIY diffusers behind my listening area at same height and line of sight as the front wall diffusers.

These provided additional benefits (no more walls Ma!). Total cost was about $200 for four 2 square feet diffusers.


Thank you for that information.

At the present I do not have anything behind the Clarisys. But I will revisit some type of diffusor in the future.