room analysis software

There is a free program called REW on the Home Theater Shack website. All you need to do is be a member and you can download the program. There is plenty of help and useful links to help get you started as there is a learning curve to use the program. I use my Mac, radio shack spl meter and a couple cables for the program.

I've also been playing with room treatment and using the program to help see where the problems are.

Here's a link: http://www.hometheatershack.com/forums/rew-forum/

Eleet,
My goal is to have a flat curve and I'm using a JL Audio Fathom F110 for the lower frequencies. For room treatment I'm using GIK tri trips for the corners and a set of 244's panels for the first reflections. Just using those has made a considerable improvement. I posted a picture of my SPL graph using the REW program here: http://www.hometheatershack.com/forums/rew-forum/53977-v5-0-awesome-first-graph-opinions-welcome.html#post491106

I've never tried the denim acoustic insulation.

I chose to use GIK products for room treatment for 3 reasons:

1- Their prices are great especially for bass traps
2- They have the best customer service. You can send them photos or drawings of your room and they will advise you on the right products and placement. Bryan Pape went out of his way to help me get started.
3- I can here a significant improvement each time I add more room treatment.