Diffusers on front wall (behind speakers)?

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What is the opinion on having or not diffusers on the front wall?

My main speakers have rear firing mids and highs.

Rear wall, way behind the LP has diffusers.

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I have a flat screen TV behind my speakers and the sound improved when I installed some GIK diffusers in front of it.

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I did. Between that and pulling speakers further out it really opened up. That screen is acoustically transparent just so it does not effect anything.

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Is that subwoofer on the left still doing its subwoofer crawl? :rofl:

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It’s crawled its last crawl. But all subs positions were determined from doing the crawl.

It’s quite amazing seeing the db difference around the room.

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You have listened to my system. I am just fine tuning…

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Beautiful room, Brian!

I have a large screen also which I don’t think its acoustically transparent but, if it were, there is drywall and then 8" of poured concrete.

What I have on either of the screen are absorbers (12" wide, the widest I could fit is 15")

Which diffusers are you using? I have debated about covering the complete wall with some diffuser type material.

I have a “get up” from which I hang qrd in front of the screen. But it looks like what it is..

Edit to include images. You can see the panel next to the screen

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Thanks. They are Vicoustics DC3. That wall has a room behind it and 4” of rockwool behind sheet rock and Sonopan.

I think QRDs that have a good depth are probably more effective.

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If your speakers have rear-firing mids/highs, diffusers on the front wall can actually help a bit, but it depends on the room size and how reflective that wall is. If it’s a small room or untreated, you might be better off with absorption there to control reflections first. Diffusion could work, but only if the rest of the room is already balanced.

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large (14w 27L 11H) treated room. Front wall has bass traps in the corners, free standing bass traps and small wall mounted traps BUT a large projection screen

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Ah got it, yeah, with that kind of space and treatment, you’re in a good spot to experiment with diffusion. Since you already have bass traps and some absorption up front, adding diffusers between or above the screen could actually help with spatial cues and depth, especially with those rear-firing drive

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