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Key Features
| MODEL | TYPE | ||
| W128701 | MID-BASS | ||
| GENERAL SPECIFICATIONS | |||
| Nominal Diameter | 300/12 | mm/inch | |
| Rated impedance | 8 | ohm | |
| Power handing capacity | 450 | watts | |
| Sensitivity | 97.5 | dB/1w/1m | |
| Frequency Range | Fs-3000 | Hz | |
| Voice Coil Diameter | 87/3.4 | mm/inch | |
| Voice Coil Material | Copper Clad Aluminium | ||
| Number of layer | 2 | ||
| Kind of layer | Inside/Outside | ||
| THIELE-SMALL PARAMETERS | |||
| Resonance frequency | Fs | 53 | Hz |
| Dc resistance | Re | 5.4 | ohm |
| Mechanical factor | Qms | 7.53 | |
| Electrical factor | Qes | 0.30 | |
| Total factor | Qts | 0.29 | |
| BL factor | BL | 21 | T.M |
| Effective Moving mass | Mms | 70.1 | g |
| Effective Cas air load | Vas | 50 | liters |
| Effective piston area | Sd | 0.0543 | m^2 |
| MOUNTING INFORMATION | |||
| Overall Diameter | Φ320/Φ12.6 | mm/inch | |
| Bolt Circle Diameter | Φ302/Φ11.89 | mm/inch | |
| Bolt Hole Diameter | 6.5*11/0.26*0.43 | mm/inch | |
| Mount Baffle Cut-out | 283/11.14 | mm/inch | |
| Depth | 140/5.5 | mm/inch | |
| SHIPPING INFORMATION | |||
| Net Weight (2 units) | 8.6 | kg | |
| Shipping Weight (2 units) | 10.6 | kg | |
| Package Size (2 units) | 590X330X180 | mm | |
