National EAS-7F10
¥ 2,000 (1 unit, around 1987)
Commentary
F10 series 7 cm cone type full range unit that adopts original high input resistance and high efficiency design.
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Model Rating
| Type | 7 cm cone type full-range unit |
| Impedance | 8 Ω |
| Fo (lowest resonance frequency) | 120Hz |
| Frequency characteristic | Fo ~ 20 kHz |
| Output sound pressure level | 88dB/W/m |
| Input (Max) | 20W |
| Magnetic flux density | 11,600gauss |
| Total flux | 61,000maxwell |
| Cone Effective Radius | 24mm |
| Mo (equivalent mass) | 0.87g |
| Qo | 0.55 |
| Weight | 275g |