| Type | Power Source | Fundamental | IMO min. required | IMO required |
| frequency, Hz | 1/3 rd octave band | fundamental | ||
| level at 1m, db | frequency, Hz | |||
| AT 150/330 | Air driven | 330 | 130 | 250-700 |
| MKT 75/260 | Air driven | 260 | 130 | 250-700 |
| MKT 75/350 | Air driven | 350 | 130 | 250-700 |
| MKT 75/440 | Air driven | 440 | 130 | 250-700 |
| ETD 100/350 | Electronic | 350 | 130 | 250-700 |
| LP 75 | Electronically driven | 350 | 130 | 250-700 |