Fostex FE108EZ 'Sigma'

4″ full range driver with paper cone and ferrite magnet.

• Nominal impedance: 8 Ω
• Resonance frequency [fs]: 77 Hz
• Sensitivity: 90 dB/W(m)
• Total Q factor [Qts]: 0.3
• Equivalent volume [Vas]: 5.7 l

See also:

Fostex FE108EZ 'Sigma' - information in PDF format (105 kB)

Fostex FE108EZ 'Sigma' - recommended enclosure: Back Loaded Horn (38 kB)