Fostex FF225WK Full Range 20cm, 8 Ohm

Die neue FF-WK-Serie löst die FF-Serie mit Kenaf-Membran ab. Komplett überarbeitet bietet die Serie eine Reihe neuer Technologien wie eine doppelschichtige Papiermembran (Kenaf/Holzfaser), eine versteifte Staubschutz-Kalotte aus Aluminium und eine neu entwickelte Aufhängung . Features und technische Daten Size: 200mm/7.9” Overall diameter: 208mm/8.2” Baffle hole diameter: 185mm/7.3” Depth: 91.7mm/4.0” Voice coil diameter: 50mm/2.0” Cast/Stamped: Stamped Impedance: 8 Reproduction frequency response: fs ~ 17kHz Sound pressure level: 93dB/W(1m) Rated input: 34W Music power: 100W Magnet weight: 1,067g/2.352lb Net weight: 3,520g/7.760lb Equivalent diaphragm radius a: 84mm Effective cone diameter D: 168mm Surface area of cone Sd: 0.022m2 Nominal impedance Zn: 8 Resonance frequency Fs: 44Hz DC resistance Re: 6 Coil inductance Le: 0.068mH Mechanical Q Qms: 11.355 Electromagnetic Q Qes: 0.409 Total Q Qts: 0.35 Equivalent mass Mms: 18.4g BL product (Factor force) BL: 8.488Tesla/m Compliance equivalent volume Vas: 57.898L Voice coil overhang Xmax: 2.25mm Reference efficiency n0 Eff/n0: 0.995% Mechanical compliance of suspension Cms: 0.826m/N Efficiency bandwidth product EBP: 107.579