


Aperture:50x50mm 50x100mm
| Nominal Box sizes ( m ) | No. of diaphragms ( no.) | Capacity per box (m3) |
| 1.0 × 1.0 × 0.5 | Nil | 0.50 |
| 1.0 × 1.0 × 1.0 | Nil | 1.00 |
| 1.5 × 1.0 × 0.5 | Nil | 0.75 |
| 1.5 × 1.0 × 1.0 | Nil | 1.50 |
| 2.0 × 1.0 × 0.5 | 1 | 1.00 |
| 2.0 × 1.0 × 1.0 | 1 | 2.00 |
| 3.0 × 1.0 × 0.5 | 2 | 1.50 |
| 3.0 × 1.0 × 1.0 | 2 | 3.00 |
| 4.0 × 1.0 × 0.5 | 3 | 2.00 |
| 4.0 × 1.0 × 1.0 | 3 | 4.00 |
