Audio Database
FE87
Commentary

This is an 8 cm cone type full range unit for AV of the FE series that utilizes the tradition of Fostechs.

The FE-x7 series uses a リバルジョン type lorry cage type magnetic circuit and is designed to prevent magnetic fields.

Model Rating
Method Full-range speaker unit
Aperture 8cm
Impedance 8 Ω
Lowest resonance frequency 140Hz
Playback frequency band Fo ~ 21 kHz
Output sound pressure level 89dB/W/1m
Input 10W(Mus.)
Mo 1.4g
Qo 1.08
Effective vibration radius (a) 3.0cm
Magnet weight 79.4g
Gross weight 0.288kg
Standard enclosure method Phase Inversion Type (4 Liters)