diy bass traps

Im going the DIY route for acoustic room treatment and I want to start with bass traps.



I have the budget but I'm curious which, if any, of these bass trap methods have significantly better low end benefits than the other.



Bass trap styles:

I just located some 701 fiberglass for sound control.

http://insulation.o…



They also have the rigid tubes of fiberglass- 10"- $2.54/L.F. and 14"- $3.35/L.F. (like an ASC Tube Trap) Easy to make your own traps and treatments.