Professional Speaker
| Woofer | 12'',15'',18'' Paper cone, cloth surround |
| Nominal Impedance | 8ohm,8ohm,8ohm |
| Frequency Response | 3000Hz, 3000Hz, 2000Hz |
| Sensitivity | 93db, 96db, 98db |
| Power rating | 250w, 400w, 600w |
| Magnet weight | 65 Oz,65 Oz, 65 Oz |
| Net Weight | 5.5KGS/CTN 6.5KGS/CTN 9.5KGS/CTN |