| JA-6252A | JA-4252A | JA-5252A | JA-6952A | |
| 6.5"2-way rubber edge carbon fiber IMPP cone | 4"2-way rubber edge carbon fiber IMPP cone | 5.25"2-way rubber edge carbon fiber IMPP cone | 6*9"2-way rubber edge carbon fiber IMPP cone | |
| Voice coil | ASV25.9 (1") | ASV25.9 (1") | ASV25.9 (1") | ASV25.9 (1") |
| Impedance | 4 Ohm | 4 Ohm | 4 Ohm | 4 Ohm |
| Magnet | 80*15(11oz) | 70*10(5.3oz) | 70*12(6.4oz) | 100*180(20oz) |
| Sensitivity | 89dB ±3dB | 87dB ±3dB | 88dB ±3dB | 90dB ±3dB |
| Max power | 140W | 80W | 100W | 180W |
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