FOSTEX W400A
¥ 132,000 (1 piece, around 1992)
Commentary
A 40 cm cone type woofer unit using an alnico magnet.
Fine ceramic coated multi-layer cone is used for the diaphragm.
A double damper is used for the support system.
3.1 kg extra-large alnico magnet is used for the magnetic circuit.
The standard enclosure is a 150 liter bass-reflex type, and even a double woofer can be used at around 300 liters.
Model Rating
Method | Cone type woofer unit |
Aperture | 40cm |
Impedance | 8 Ω |
Lowest resonance frequency | 25Hz |
Playback frequency band | Fo ~ 2.5 kHz |
Output sound pressure level | 97dB/W/1m |
Input | 200W(Mus.) |
mo | 134.5g |
Qo | 0.24 |
Effective vibration radius (a) | 16.85cm |
Magnet weight | 3.1 kg (Alnico) |
Recommended crossover | 1.5 kHz or less |
Gross weight | 15.2kg |
Standard enclosure | Bass Reflex Type (150 liters) |