Professional Speaker
| Woofer | 12'',15'',18'' Paper cone, cloth surround |
| Nominal Impedance | 8ohm,8ohm,8ohm |
| Frequency Response | 2500Hz,2500Hz, 2000Hz |
| Sensitivity | 95db, 97db, 98db |
| Power rating | 300w, 500w, 800w |
| Magnet weight | 100 Oz, 100 Oz, 100 Oz |
| Net Weight | 7.0KGS/CTN 8.8KGS/CTN 9.0KGS/CTN |