Fostex FF125WK Full Range 12cm, 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: 120mm/4.8” Overall diameter: 117mm/4.7” Baffle hole diameter: 104mm/4.1” Depth: 61.3mm/3.0” Voice coil diameter: 25mm/1.0” Cast/Stamped: Stamped Impedance: 8 Reproduction frequency response: fs ~ 22kHz Sound pressure level: 89dB/W(m) Rated input: 16W Music power: 50W Magnet weight: 388g/0.855lb Net weight: 920g/2.028lb Equivalent diaphragm radius a: 46mm Effective cone diameter D: 92mm Surface area of cone Sd: 0.0066m2 Nominal impedance Zn: 8 Resonance frequency Fs: 67Hz DC resistance Re: 6,7 Coil inductance Le: 0.044mH Mechanical Q Qms: 5.091 Electromagnetic Q Qes: 0.464 Total Q Qts: 0.42 Equivalent mass    Mms: 5g BL product (Factor force) BL: 5.596Tesla/m Compliance equivalent volume Vas: 7.265L Voice coil overhang Xmax: 1.65mm Reference efficiency n0 Eff/n0: 0.451% Mechanical compliance of suspension Cms: 1.153m/N Efficiency bandwidth product EBP: 144.397