Fishboat,
Thanks. Great links!
Reading further, to summarize;
It seems foam or mineral wool or fibreglass (or many other materials) of similar density, size and placement can do equally well (assuming appropriate framing)
In theory the higher density materials (up to 8 lbs per foot mineral wool/fibreglass) should get better absorption lower down towards 50 Hz. A slight advantage but seeing as ultra LF is always a significant problem area it is unrealistic to expect miracles.
The size/volume/coverage of bass traps seems the most important.
Corners treated with 16 linear feet of bass trap appears to be a bare minimum and probably brings the largest improvement. Twice that treatement or 32 feet is probably a better but smaller improvement and above this diminishing returns start to kick in (although improvements are still possible, they just won't be as noticable).
Would you agree?
Thanks. Great links!
Reading further, to summarize;
It seems foam or mineral wool or fibreglass (or many other materials) of similar density, size and placement can do equally well (assuming appropriate framing)
In theory the higher density materials (up to 8 lbs per foot mineral wool/fibreglass) should get better absorption lower down towards 50 Hz. A slight advantage but seeing as ultra LF is always a significant problem area it is unrealistic to expect miracles.
The size/volume/coverage of bass traps seems the most important.
Corners treated with 16 linear feet of bass trap appears to be a bare minimum and probably brings the largest improvement. Twice that treatement or 32 feet is probably a better but smaller improvement and above this diminishing returns start to kick in (although improvements are still possible, they just won't be as noticable).
Would you agree?