CORAL FLAT-5II
¥ 3,400 (1 unit, around 1980)
Commentary
FLAT-mkII series 12 cm double cone type full-range speaker unit.
Uses white cone paper with excellent linearity.
There were 2 types of variations, 4 Ω and 8 Ω.
Model Rating
| Type | 12 cm Double Cone Type Full Range Unit |
| Nominal impedance | 4 Ω, 8 Ω |
| Program source input | 20W |
| Lowest resonance frequency | 70Hz |
| Playback frequency band | Fo ~ 18 kHz |
| Output sound pressure level | 91dB/W/m |
| Magnetic flux density | 11,000gauss |
| Effective vibration radius (a) | 4.82cm |
| Equivalent mass of vibration system (mo) | 3.1g |
| Qo | 0.55 |
| Weight | 0.75kg |