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JA-81Series 
JA-81A series coaxial speakers,Impedance:4ohm(Re:3.2ohm) Include 4-inch, 5.25-inch, 6.5-inch and 69-inch. Frame is made of iron basin frame, High-performance ferrite magnet , Rubber edge blue and black glassfiber weaving cone. | ||||
| JA-6581A | JA-4281A | JA-5281A | JA-6981A | |
| Voice coil | KSV25.9(1") | KSV25.9(1") | KSV25.9(1") | KSV30.5(1.2") |
| Impedance | 4 Ohm | 4 Ohm | 4 Ohm | 4 Ohm |
| Magnet | 90X15(14oz) | 70X12(6.4oz) | 80X15(10oz) | 100X18(20oz) |
| Sensitivity | 89dB ±3dB | 87dB ±3dB | 88dB ±3dB | 90dB ±3dB |
| Nom/Max power | 90W/180W | 50W/100W | 70W/140W | 120W/240W |
| Tweeter | 13mm/0.51"PEI | 13mm/0.51"PEI | 13mm/0.51"PEI | 13mm/0.51"PEI +58mm/2.3"Mylar |
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