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Seeking advice on skyline diffuser size and placement

I’m in the process of improving the acoustics in my listening/living room and would appreciate some guidance from those with experience.

I’ve ordered cork panels for the TV wall and the light grey wall behind my left speaker, and now I’m focusing on building skyline diffusers for the dark grey wall directly behind each speaker. I’m uncertain about the optimal dimensions for these diffusers. For context, you can view my virtual system.

My setup is in an open space where my living room, kitchen, and dining area are all one room. My listening position is ~14’ from the TV / speakers. I already have GIK Acoustics 4" Impression Pro Series Bass Trap Diffuser/Absorbers hung at the first reflection points (or as close as possible given the limitations of the room).

Specific questions:

  1. What would be an appropriate height for skyline diffusers that will be ~24 inches wide?
  2. Should the skyline diffusers extend beyond the height of the speakers, or is it sufficient to align with them?
  3. Would I get better results using shorter skyline diffusers (~24" tall) in combination with other acoustic treatments directly behind the speakers? If so, what complementary treatments would you recommend?

Thanks in advance for any insights!

sandrodg73
baylinor's avatar
baylinor
1,499 posts
 

Diffusers placed behind front firing speakers will result in very minimal improvements at best. Back wall and rear of sidewalls placements would result in better results. Key for diffusion is to place at points of reflections. Behind front firing speakers is one of the last place you will experience reflection. If your room is overly deadened, place diffusers on first reflection points. If lively enough as is, place them on back wall. See my system with multiple pics showing my acoustic setup. The key to room acoustics starts with what your goals are, liveling up your room with diffusers, or deadening it with absorbers. Only you know. The key is usually a little of both until you get it right.

 

sandrodg73 OP
141 posts
 

Thanks for your response and knowledge.  Great looking set up!

We are trying to maximize a multi use room that's odd shaped without it looking like a recording studio.  We have abosorbers/diffusers at 1st reflection on the right.  On the left is kitchen so no can do.  From the research I've done, diffusers behind a speaker may allow for them to be a bit closer to the wall and a bit closer together while improving imaging at the same time. Maybe split the length behind the speakers in thirds?absorption/diffusion/absorption? My room is on the lively side and base in areas is boomy

mclinnguy's avatar
mclinnguy
744 posts
 

If you already have GIK products why are you not asking their advice? 

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