GIK Acoustic Room Treatments

[AVSCraig]

I've had 3 GIK Acoustic 242 Acoustic Panels in my theater for several years now. They made a noticeable difference putting them at the first reflection points. 

 https://www.gikacoustics.com/product/gik-acoustics-242-acoustic-panel/

Stay tuned as I install and report on several different GIK products including Monster Bass Traps, 244 Bass Traps, 
Tri-Trap © Corner Bass Traps, and GridFusor© acoustic sound diffusors. 

https://www.gikacoustics.com/

[AVSCraig]

Gridfusor ceiling diffusers - in the raw and with a coat of Rosco Velour Black.

[AVSCraig]

Here they are installed. Did some tests tonight - these made a HUGE improvement on sound at the seats. Dialog is crisper / clearer, and the room sounds larger. Bass traps with scatter plates are adding to that larger sounding room effect I'd bet. 

[David Vaughn]

I really need to get some of those for my room. 

[AVSCraig]

I really need to get some of those for my room.

You should come check them out. I have another 10 bass traps coming in a few weeks too. 

[David Vaughn]

Craig,

I'm on vacation the week of Thanksgiving. Maybe sometime early in that week. Would that work for you?

Also, how did you affix them to the ceiling?

[AVSCraig]

Craig,

I'm on vacation the week of Thanksgiving. Maybe sometime early in that week. Would that work for you?

Also, how did you affix them to the ceiling?

I'm gone that week unfortunately. I used double faced adhesive pads, but I don't trust those long term, so I toe nailed them at an angle with 2 1/2" finishing nails, into the drywall. 6 nails per panel. I tried the T pins they recommended, but they are too small and didn't inspire confidence ! The adhesive pads make getting them in place easy. The nails make sure they stay there ! 

[David Vaughn]

I'm gone that week unfortunately. I used double faced adhesive pads, but I don't trust those long term, so I toe nailed them at an angle with 2 1/2" finishing nails, into the drywall. 6 nails per panel. I tried the T pins they recommended, but they are too small and didn't inspire confidence ! The adhesive pads make getting them in place easy. The nails make sure they stay there !

The planets aren't aligning for us Craig. Maybe I can pry myself free for a few hours next week. I'm booked through Monday

[David Vaughn]

I'm gone that week unfortunately. I used double faced adhesive pads, but I don't trust those long term, so I toe nailed them at an angle with 2 1/2" finishing nails, into the drywall. 6 nails per panel. I tried the T pins they recommended, but they are too small and didn't inspire confidence ! The adhesive pads make getting them in place easy. The nails make sure they stay there !

Craig, who did you deal with at GIK?

[AVSCraig]

Craig, who did you deal with at GIK?

John Dykstra. He was quite helpful. 

[David Vaughn]

John Dykstra. He was quite helpful.

Great...thanks!

[AVSCraig]

Now that I'm finished, here is a list of my room treatments -

GIK 242 2’ x 4’ acoustic panels – 3
GIK 2” Spot Panel - 2’ x 2’ acoustic panel – 1
GIK – 244 2’ x 4’ bass traps w scatter plates – 3
GIK – 244 1’ x 4’ bass traps w scatter plates – 12
GIK – 244 2’ x 2’ bass traps w scatter plates – 3
GIK – 244 2’ x 3’ bass trap w scatter plates – 1
GIK – Monster Bass Traps w scatter plates – 1’ x 4’ – 2
GIK – Monster Bass Traps w Range Limiter– 2’ x 3’ – 2
GIK – Monster Bass Traps w Range Limiter– 1’ x 4’ – 2
GIK Tri-Trap Corner Bass Traps w  Range Limiter – 2 plus 2 Demi Tri-Trap Corner Bass Traps
GIK GridFusor diffusors - 8


Watched " Lucy " on 4K BR last night with friends that have never seen it, and one of the guests said he was amazed at how loud the soundtrack was ( reference + 1.5 ) but the sound never hurt his ears. And he felt the bass in his chest - haha ! The bass / LFE and sound in general has really improved. I think I'm finished. For now, other than maybe some further calibration. 

[randman]

So, I understand the need to put absorption in the first order reflections. 

Some questions:

1. where should diffusers go? 

2. Have the rules for diffuser placement changed with the Dolby Atmos spec? 

3. I've seen that most (?) folks put diffusers mainly in the back wall. I don't think I'll be putting acoustic panels in my ceiling. Would that change where else I should put diffusers?

[AVSCraig]

So, I understand the need to put absorption in the first order reflections.

Some questions:

1. where should diffusers go?

2. Have the rules for diffuser placement changed with the Dolby Atmos spec?

3. I've seen that most (?) folks put diffusers mainly in the back wall. I don't think I'll be putting acoustic panels in my ceiling. Would that change where else I should put diffusers?

I put diffusers on my ceiling based on recommendations from the guys at GIK. I'd reach out to them and see what they recommend. 

[SRW1000]

So, I understand the need to put absorption in the first order reflections.

Some questions:

1. where should diffusers go?

2. Have the rules for diffuser placement changed with the Dolby Atmos spec?

3. I've seen that most (?) folks put diffusers mainly in the back wall. I don't think I'll be putting acoustic panels in my ceiling. Would that change where else I should put diffusers?

You may want to try experimenting, if possible. 

For example, some of us have found that if you have speakers with good dispersion not absorbing the first reflection point actually adds a good amount of spaciousness.