| Louvre Model | IAL-300 | |
| Louvre Depth | 300 mm | |
|
OCTAVE BAND CENTRE FREQUENCY, HZ OCTAVE BAND CENTRE FREQUENCY, HZ |
63 | 11.6 |
| 125 | 8.7 | |
| 250 | 7.4 | |
| 500 | 11.7 | |
| 1K | 14.2 | |
| 2K | 11.9 | |
| 4K | 11.6 | |
| 8K | 11.8 | |
| Louvre Model | IAL-300 | |
| Louvre Depth | 300 mm | |
|
OCTAVE BAND CENTRE FREQUENCY, HZ OCTAVE BAND CENTRE FREQUENCY, HZ |
63 | 11.6 |
| 125 | 8.7 | |
| 250 | 7.4 | |
| 500 | 11.7 | |
| 1K | 14.2 | |
| 2K | 11.9 | |
| 4K | 11.6 | |
| 8K | 11.8 | |