| FSERIES | W4-657SC |
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| DIAPHRAGM MTL | Doped Alum | ||||
| SURROUND MTL | Rubber | ||||
| NOMINAL IMPEDANCE | 8 W | ||||
| DCR IMPEDANCE | 6 W | ||||
| SENSITIVITY 1W/1m | 88 dB | ||||
| FREQUENCY RESPONSE | 65-15k Hz | ||||
| FREE AIR RESONANCE | 65 Hz | ||||
| VOICE COIL DIAMETER | 25 mm | ||||
| AIR GAP HEIGHT | 6 mm | ||||
| RATED POWER INPUT | 40 W | ||||
| MAXIMUM POWER INPUT | 80 W | ||||
| FORCE FACTOR, BL | 5.37 TM | ||||
| MAGNET WEIGHT (11.3oz) | 305 g | ||||
| MOVING MASS | 4 g | ||||
| FERRO FLUID ENHANCED | No | ||||
| SUSPENSION COMPL. | 1309MN-1 | ||||
| EFFEC.PISTON AREA | 0.0057M2 | ||||
| Levc | 0.4412mH | ||||
| Zo | 83.0373ohm | ||||
| X-max | 3.3 mm | ||||
| Vas | 6.04 Litr. | ||||
| Qts | 0.36 | ||||
| Qms | 5.01 | ||||
| Qes | 0.39 | ||||
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