| Diffusion Coefficient | ||
| Hz | Formedffusor™ | Reflector |
| 125 | 0.71 | 0.67 |
| 160 | 0.71 | 0.66 |
| 200 | 0.73 | 0.68 |
| 250 | 0.73 | 0.70 |
| 315 | 0.64 | 0.70 |
| 400 | 0.77 | 0.68 |
| 500 | 0.88 | 0.70 |
| 625 | 0.83 | 0.68 |
| 800 | 0.81 | 0.64 |
| 1000 | 0.80 | 0.59 |
| 1250 | 0.70 | 0.47 |
| 1600 | 0.69 | 0.42 |
| 2000 | 0.69 | 0.42 |
| 2500 | 0.68 | 0.41 |
| 3150 | 0.62 | 0.35 |
| 4000 | 0.56 | 0.31 |