The nice thing about room treatments is you're treating the room, not the gear in the room. So you might need to move it around a bit to account for different reflection points of speakers...but the fact is the room will still have the same dimensions and same problems.

The guys at GIK are good people, I've chatted with Glen and Ethan a few times comparing notes on diffuser builds, and I got to manhandle some of their gear at the last Axpona audio show in Chicago - very well made stuff! So give them a call and ask them for guidance.

IMHO, you need *both* absorption and diffusion. For them to be effective you need to cover at least 25% of your rooms boundaries - so a few will make slight dent, but it takes several to really make a difference.

Also check out Dennis at Acoustic Fields - he's got lots of great videos on youtube and his devices are some of the best I've ever seen. Expensive though.

Good luck! And I have to say I'm super excited to see you doing measurements!

Thanks for the replies.  I looked into Acoustic Fields and watched quite a few of Dennis Foley's videos. The guy sure knows his stuff.  He would tell me to find another room for sure, but there were several folks that had smaller rooms that Dennis advised - so it's not impossible.  I liked the Sam Small video.  His absorption units are massive - 250 lbs. Also looked at Artnovion.  Looks like good stuff too. They had a very interesting corner unit but it was "coming soon".

So I ordered 4 bass units and 6 panels from GIK.  We'll see how that goes.  Just ordered today so no timetable yet.

I've been looking into speaker placement. Found the Cardas method. That puts my speakers too far out in the room to leave there permanently.  The image was pretty good, but sounded a bit thin. I'll try it again once I get some room treatments.  Found the Vandersteen method too. Had pretty good results with that. Still a decent image, with a lot better bass response.

Once I decide on the best location I'll run some more measurements so I can do a before and after treatments.  Also found a collection of tones from Realtraps.  Really helps find the hot spots.

I've got a big screen tv that I'd like to keep in the room.  So I'm going to try six of Steve's diffusors in front of it and 4 on the back wall.  Hopefully that will work as I can easily move them out of the way when not in use.

I ordered of UFO today too, so I've got a couple months to get the room ready for it.

+1 on that LR.  I've been tweaking speaker placement for 3 years. Every once in a while it's...what if I do this, or that, or??? But, Very happy with current placement which has not changed for months now!

Try ASI product by Franck Tchang..
Google it for the details..

With this product., u don't need to spend fortune on diffuser, absorber and etc.. I don't have any diffuser, absorber, traps or others to treat my room..

Only ASI products..

Where about are u at.? I could get my local distributor for direction.
Or u may also email Franck directly, he should be able to direct u.

Read the review by 6moons on the ASI products like sugar cubes & resonators. They are really amazing stuff.

Here is graph of the Betsy.  Looks promising.

I find that I have done a flip flop on music choices with the system sounding so much better. For example I'd play "Sultans of Swing" or "Money for Nothing" and move on. Now I skip those songs and play the rest of the cd - just sounds so good!

Hey Ron,

Did a little more measuring with the Vandersteen's:



and the Betsy's:



I only have 4 monster bass traps right now. My plan is to get 4 soffits - one in each corner and do the same with t-40 scopus units.  I'll play around a bit with the monsters to see what works best later.  The drop at 55hz seems consistent, but I'm hoping the added bass traps will help there also.  I'm also a little worried about a dead sounding room, so I'll likely opt for the range limiters on the soffits.

I did a spreadsheet comparing the absorption of the Acoustic Fields ACDA traps and some in the GIK line:



The absorption tests posted on Acoustic Fields site for the ACDA units were done a long time ago and the units then were smaller, so I just assumed (maybe incorrectly) that the absorption rate was equal per cubic inch and adjusted for size.  The main problem for me with Acoustic Fields are his units are so massive.  Up to 250lbs and almost as big as a refrigerator.  Looking at my spreadsheet, I'm certainly leaning toward GIK. I should probably add ASC in there and see how they shake out.