What are the best Room Accustic Treaments members have found?


I  am looking into adding some room acoustic treatments to my room.  I am just looking for advice on some simple room treatments that fellow members found worthy of purchase. 
128x128davidrolson
"The suggestion of crowded bookshelves, curtains, carpets and clutter is no more than guesswork. Adding any or all of these will have an audible effect, unfortunately it probably isn't an improvement. The books will just collect dust and the drapes and carpet are only narrow- band absorbers."


Wrong, but as elsewhere, you`ll need some skills and patience. You need to know what you are doing. Listen to this guy, he`s a bit skilled: 
https://www.youtube.com/watch?v=cTnituQu8ig
you'll need some skills and patience.
+1
A few decades of experience helps as well... and not backing down to the 

If I were designing a recording studio, obviously a whole different approach is required. However, the last thing I want in my media room is recording studio acoustics.
tuberist wrote:
davidrolson, forgive me if you already know this. Room treatments generally address damping (absorbing) or redirecting sonic reflections. if you do some research, you'll have a good handle on what your room "needs" Many of us have made absorption panels with OwensCorning foam insulation installed in frames with nice fabric covers. It sounds like you've made the first step to realize you want to treat your listening room; many never do that and IMO that's the primary building block to a good listening experience. Good luck.
I agree with tuberist's comments as cost is a big deal to me. FWIW, I have about $22,000 of stereo gear at list price that cost me about $7,000 used. Never bought new. I looked at GIK pricing and figured I could save half by doing it myself: make panels with Owens Corning absorbing material, lumber for frames from Home Depot, and fabric from Joanne's Fabrics.

Now would these go in a formal living room? Probably not. Would they do well in a well decorated man cave? Probably; I know I am happy with the result.

Also, my personal opinion is that foam products do not work as well as Owens Corning (or Roxul Rockwool) because foam has have lesser absorption properties.

All sorts of questions to ask yourself!

Thanks for listening,

Dsper 
Just installed GIK diffusors and they work great.  Addressed some smearing and focused up the vocals.  Bit more control of bass.  I also have 6' quarter round ASC treatment in the corners.
There are many great acoustic treatment companies and products out there, but one I am fond of and have worked with at some shows is Acoustic Innovations. They are American Made products, great people to work with, and have very visually appealing products. Much of what they do is theater oriented and they have an incredible client list that they can't publicly disclose.    

https://acousticinnovations.com/wallscapes
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In my RoomPlay Reference room, all GIK except for corner 20" ASC tube (bass) traps that I have had for many years...
IMO, GIK is fairly priced, and they are very friendly & helpful.
No downside of which I am aware.
Best,
Jim Smith
I had a large blank wall behind my listening position and the reflection back to me was annoying.  I’ve purchased many decorative rugs in my world travels, so I bought some wooden rug wall hangers (they can be used for decorative quilts as well) and put up a 5 by 7 Persian silk on wool rug up on the wall.  Looks awesome, and really deadened the echo...

I am an avid amateur photographer and have several of my best photos printed on larger canvases (30 by 30).  They are stretched tight on a sturdy wooden frame— I buy the 1.5 inch thick versions, without a dustcover on the back.  I take Sound absorbing wool, carefully cut it to fit in the back of the canvas, and cover the back with tightly stretched and stapled muslin.  Several commercial sound treatment companies offer this approach, either with your photo, or their stock selection.  I can achieve same thing for much less, and have a better quality photo of mine on archival canvas.

i haven’t tried this yet, but I am thinking about getting some sono tubes (used for pouring concrete footers and columns), lining the inside with sound absorbing material (the stuff sold for automotive sound proofing is awesome), stuffing the tube with insulation), and covering the outside of the tube with a nice thick fabric.  Put a bottom and top on it and presto, a bass trap.