| JAC-688 | |
| 6.5'' rubber edge carbon fiber composited foaming cone | |
| Voice coil | KSV30.5(1.2") |
| Impedance | 4 Ohm |
| Magnet | 100*15(17oz) |
| Sensitivity | 91dB ±3dB |
| Max power | 240W |
| Treble configuration | 25mm(1")silk dome |
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- Next: JAC-687




| JAC-688 | |
| 6.5'' rubber edge carbon fiber composited foaming cone | |
| Voice coil | KSV30.5(1.2") |
| Impedance | 4 Ohm |
| Magnet | 100*15(17oz) |
| Sensitivity | 91dB ±3dB |
| Max power | 240W |
| Treble configuration | 25mm(1")silk dome |