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27A-Series 
| JA-6227A | JA-4227A | JA-5227A | JA-6927A | |
27A-Series in Rubber-edge IMPP Cone 1.5"Neodymium Tweeter | 27A-Series in Rubber-edge IMPP Cone 1.5"Neodymium Tweeter | 27A-Series in Rubber-edge IMPP Cone 1.5"Neodymium Tweeter | 27A-Series in Rubber-edge IMPP Cone 1.5"Neodymium Tweeter 2.25"Ferrite Midrange | |
| Voice coil | ASV25.9(1") | ASV19.45(0.76") | ASV25.9(1") | ASV25.9(1") |
| Magnet | 80*15(11oz) | 70*10(5.3oz) | 70*12(6.4oz) | 100*18(20oz) |
| Sensitivity | 87dB±3dB | 84dB±3dB | 86dB±3dB | 88dB±3dB |
| Max power | 140W | 60W | 100W | 180W |
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