[barbaroja]

I got a small studio 3,40 x 3,00 m. Angled ceiling. I got 2" fiberglass panels in the sides and back of the listening position. Also, two large 3m - 4"thick fiberglass bass traps in front corners. I am thinking in adding fiberglass hanging panels. Many reasons make for this decision. I need a better bass trapping since I still hear notes louder than others. Also I need to improve the lights in my studio. So the panels would carry the lights. For functionality I would love them to do fine bass trapping. Taking this point into account, I am thinking into three panels arranged in a stair manner, having 2,5 foot of air gap between themselves and the ceiling, since its angled. So here come the questions:

1. What would be the ideal thickness for the panels?
2. I am planning to use 3 panels. Would be better to use one full panel?
3. Is the fact that they are not touching the walls important regarding LFs?
4. Am I likely to expect a good performance in controlling bass frequencies by adding these hanging panels?

Thanks