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56A-Series 
| JA-6256A | JA-4256A | JA-5256A | JA-6956A | |
| 6"2-ways rubber edge NOMEX cone | 4"2-ways rubber edge NOMEX cone | 5"2-ways rubber edge NOMEX cone | 6*9"3-ways rubber edge NOMEX cone | |
| Voice coil | KSV30.5 (1.2") | KSV25.9(1") | KSV25.9(1") | KSV30.5 (1.2") |
| Impedance | 4 Ohm | 4 Ohm | 4 Ohm | 4 Ohm |
| Magnet | 90*15(14oz) | 70*15(8oz) | 80*15(11oz) | 110*18(20oz) |
| Sensitivity | 90dB ±3dB | 87dB ±3dB | 88dB ±3dB | 90dB ±3dB |
| Max power | 200W | 90W | 120W | 280W |
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