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1. pro sound speaker with martin audio style 2.Pressed Steel Chassis speaker ideal for stage system3.speaker unit in 12"
4.75.5 mm aluminium voice coil of loudspeaker5.Pa loudspeaker in good quality and competitive price
6.speaker unit details:
| Specifications | |
| Nominal Diameter | 314 mm |
| Nominal Impedance | 8 Ω |
| Minimum Impedance | 6.6 Ω |
| Power handling | |
| (50-500Hz) | |
| Nominall | 250 W |
| Continuous Program | 500 W |
| Sensitivity (1W/1m)3 | 96.5 dB |
| Frequency Range | 46.1-4000 Hz |
| Voice Coil Diameter | 75.5 mm |
| Winding Material | Copper Clad Aluminium |
| Former Marerial | TiL |
| Winding Depth | 17 mm |
| Magnetic Gap Depth | 10 mm |
| Flux density | 1.1 T |
| Thiele-Small parameters4 | |
| Fs | 46.1 Hz |
| Re | 5.3 Ω |
| Qes | 0.42 |
| Qms | 7.33 |
| Qts | 0.40 |
| Vas | 126.7 |
| η0 | 2.83% |
| X max | 5 mm |
| X var | 4 mm |
| Mms | 43.2 gr |
| BL | 12.5 N/A |
| Le | 0.9 mH |
| Mounting and Shipping Information | |
| Blot Circle Diameter | 296 mm |
| Overall Diameter | 314 mm |
| Baffie Cutout Diameter | 282 mm |
| Depth | 135 mm |
| Flang and Gasket Thickness | 14 mm |
| Net Weight | 5.8 kg |
| Shipping Weight | 6.4 kg |
| Shipping BOX | 320×320×155 mm |
| Magnet Size | 156×80×20 mm |