Bass traps: 32kg/m^3 enough?

[Chikkinn]

I'm purchasing some foam panels from a local company to treat first reflection points. If I want I could also get some corner bass traps made from a "32kg/m3 polyester foam" in a bundle, but I'm not sure about them. From what I've read, the lowest density people seem to be using is more like 45-60 kg/m3 in a superchunk corner bass trap style, or a higher density (100 kg/m3) framed slab positioned over the corner. I was thinking of going with the 100 kg/m3 slab, but if anyone here's had experience with 32 kg/m3 foam I'd love to hear about it!

 

[sheggs]

I'm purchasing some foam panels from a local company to treat first reflection points. If I want I could also get some corner bass traps made from a "32kg/m3 polyester foam" in a bundle, but I'm not sure about them. From what I've read, the lowest density people seem to be using is more like 45-60 kg/m3 in a superchunk corner bass trap style, or a higher density (100 kg/m3) framed slab positioned over the corner. I was thinking of going with the 100 kg/m3 slab, but if anyone here's had experience with 32 kg/m3 foam I'd love to hear about it!

Is it foam? I would check out the figures on that first. It will not be as effective for the lows as rockwool/fibre glass