National EAS-10F20
¥ 3,800 (1 unit, around 1987)
Commentary
F20 series 10 cm full range unit with improved full range by pursuing wide and flat frequency characteristics.
The pole piece with a pure copper short ring and the dome diaphragm directly connected to the voice coil provide a clear mid-high range.
Model Rating
Type | 10 cm cone type full range unit |
Impedance | 8 Ω |
Fo (lowest resonance frequency) | 55Hz |
Frequency characteristic | Fo ~ 20 kHz |
Output sound pressure level | 92dB/W/m |
Input (Max) | 50W |
Magnetic flux density | 10,800gauss |
Total flux | 95,000maxwell |
Cone Effective Radius | 45mm |
Mo (equivalent mass) | 3.8g |
Qo | 0.35 |
Weight | 1.1kg |