| JA-6255A | JA-4255A | JA-5255A | JA-6955A | |
| 6"2-wayrubber edge paper cone | 4"2-wayrubber edge paper cone | 5"2-wayrubber edge paper cone | 6*9"3-wayrubber edge paper 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*18(20oz) |
| Sensitivity | 88dB ±3dB | 86dB ±3dB | 87dB ±3dB | 90dB ±3dB |
| Max power | 140W | 70W | 90W | 180W |
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