FOSTEX GZ80

Commentary

A carefully tailored speaker system for custom production.

The low-range is equipped with an edgeless 20 cm cone woofer SLE20W.
This unit uses an SLE system that combines technologies such as an acoustic low-pass filter and a push-pull type double damper and realizes low fo, low 歪巻 sound quality and high input resistance.

Dome type Skoka FS70D is mounted in the middle area.
This unit is designed for use with edgeless and high-compliance woofers.

A ribbon-type tweeter FT3RP using the RP method is mounted in the high-frequency band.
The RP (Regular Phase) system is a system using a planar coil diaphragm. It is a full-surface drive system in which the entire diaphragm moves in the same phase. The basic structure is such that an extremely thin high-density planar coil diaphragm is held by a special support system between a pair of magnetic circuits with the same poles facing each other, so that the entire diaphragm is driven uniformly. Since the mass of the vibration system is small and it is driven uniformly, it acquires strength and wide dynamic range while maintaining the sound quality of condenser type.

The enclosure uses a bass-reflex method and has a white exterior finish.
The tweeter finish was different between the 1976 catalog and the 1979 catalog.
The one at the top of the page is from the 1979 catalog, and the one at the bottom of the page is from 1976.

Model Rating

Method	3-Way, 3-Speaker, Bass reflex system, Bookshelf Type
Units Used	For Low Band : 20 cm Cone Type (SLE20W) For Middle Area : Dome Type (FS70D) For High Range : Ribbon Type (FT3RP)
Impedance	8 Ω
Frequency characteristic	35 Hz to 50 kHz
Output sound pressure level	90dB/W/m
Input	100W(Mus)
Internal volume	45 liters
External dimensions	Width 350x Height 635x Depth 300 mm
Weight	23 kg (according to 1976 catalog) 25 kg (according to 1979 catalog)