Desc.
4 "full frequency speaker; 80 ferrite magnet; 25 core high temperature resistant voice coil KSV skeleton; High strength aluminum basin stand; Rubber hanging composite glass fiber drum paper matte PP reverse cap; 70Hz-10KHz frequency response range; 86dB sensitivity; 50W rated power; Suitable for bookshelf speakers, middle speakers and main speakers
| Nominal diameter ： | 4 inch |
| Nominal impedance ： | 7Ω |
| Power rating ： | 15-50W |
| Sensitivity(1w\1m) ： | 86dB |
| Frequency range ： | 70Hz-10KHz |
| Voice coil diameter ： | Φ25 |
| Magnet dimension ： | 80*32*15 |
| Fs ： | 80.691 Hz |
| Re ： | 7.00 Ohm |
| Qms ： | 6.426 |
| Qes ： | 0.598 |
| Qts ： | 0.547 |
| Vas ： | 3.034 Ltr |
| Cms ： | 695.676u M/N |
| n.(%) ： | 0.258 % |
| Bl ： | 5.841 T |
| Sd ： | 5.542K mm |
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