Professional Speaker
| Woofer | 12'',15'',18'' Paper cone, cloth surround |
| Nominal Impedance | 8ohm,8ohm,8ohm |
| Frequency Response | 3000Hz, 2000Hz, 2000Hz |
| Sensitivity | 95db, 97db, 98db |
| Power rating | 300w, 500w, 800w |
| Magnet weight | 100 Oz, 100 Oz,100Oz |
| Net Weight | 9.0KGS/CTN, 10.5KGS/CTN, 11.3KGS/CTN |