No Foam Comparison				
Dist.	44Hz	100Hz	447Hz		
0	130	130	130		
1	101.2	113.8	116.6		
2	94	103.3	98.9		
3	88.9	95.7	90.6		
4	86.7	88.3	87.5		
5	83.3	83	84.5		
6	77.4	79.2	77.8		
7	75.2	73.2	80.9		
8	72.7	81.9	84.5		
9	69.7	83.6	85.8		
10	65.9	84.1	84.6		
15	65.2	83.5	79.6		
20	64.4	81.2	80		
25	72	79.6	79.3		
30	75.1	78.9	78.1		
35	73.8	77.9	77.2		
40	71.8	74.5	75.8		
45	70.7	73.7	74.2		
50	67.1	74.3	73.5		
55	69.5	72.4	70.8