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JA-73A Series 
| JA-73A Series | ||||
| JA-6573A | JA-4273A | JA-5273A | JA-6973A | |
| 6.5"2ways rubber edge/paper cone | 4"2-ways rubber edge/paper cone | 5.25"2-ways rubber edge/paper cone | 6X9"3-ways rubber 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 | 80X15(11oz) | 70X10(5.3oz) | 70X12(6.4oz) | 100X18(20oz) |
| Sensitivity | 89dB ±3dB | 88dB ±3dB | 89dB ±3dB | 90dB ±3dB |
| Max power | 160W | 140W | 160W | 200W |
| Tweeter/Midrang | 0.5"Mylar | 0.5"Mylar | 0.5"Mylar | 0.5"Mylar/2.36"Mylar |
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