What are the limits of room correction/ treatments ?


My old listening room was open to other parts of the house allowing excess bass energy to escape and had a high 13ft. ceiling. Clear tight bass and open clear midrange even when loud. My current room, while bigger ( 17 x 21), is boxy with 9' ceilings and a single door entrance. You can really hear the room getting in the way on many recordings, esp with louder complex recordings. Can room correction + treatments really make my current room sound like the old one?
jim94025
Took some Owens Corning 703 from GIK and started placing different thickness traps in various places. Bought around 24 sheets so was able to go as thick as a foot so far. When I found success I ordered a trap of that thickness from GIK. Working out very well.
Also use curtains, rugs and furniture. It can make a Yuge difference!

This stuff gets kind of tricky but I would recommend the following:

1)  Get your speakers set up to spot where they sound decent including toe in and tilt (front to back)

2)  Add bass traps in the corners

3)  If your room has hardwood floors you will need to put a large area rug in front of the speakers or treat the ceiling

4)  Treat the first reflection points on the walls to the sides of the speakers

5)  I would add absorptive panels or material cautiously.  You can get too much and it makes the room too dead

6)  I have had good success with adding diffusers instead of absorptive panels.  They work great on the back wall behind the listening chair and also on the front wall behind the speakers.  I don't like the cheap foam variety of diffusers and have made mine out of wood. 

There a lot of good sites for information that will do design work if you buy their products.  In my opinion they can go overboard on the absorptive panels since they are also in the sales game.  Just my two cents.

Any recent experience with RoomTunes? Looking at their website and forum there seems to be a bit of a cult-ish vibe. Forum photo and drawing examples of how and where to use their products seem much different than those made by GIK, RealTraps etc. The "pillow" type products are mostly what I’m referring to. Not much available in the way of reviews either, despite their products being on the market for maybe 25+ years. Most mentions of the products online are years old so have they been surpassed by newer ones from other companies? On the other hand their prices are quite reasonable. Would appreciate any comments.
I made some DIY clones of these pillows many years ago. Sonic impact was (very) minimal.

I had great success with building my own floor-to ceiling SEALED bass traps to remedy a mid-bass hump in my room and also 24" X 48" panels to dampen the first reflection points on side walls. All made of 2" thick Owens Corning RIGID fiberglass panels with inexpensive wood frames and covered with the fabric of my choice. Sonic impact was not just, "Well, I guess they make some difference." like the RoomTunes.

Best to you jaybe,
Dave