Fountek FR89EX Full Range

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The Fountek FR89EX is an 88mm full range drive unit. This long throw design has an impressive maximum linear excursion of +/- 5mm. Features include a black aluminium cone, high flu x neodymium magnet system, non resonant chassis and an underhung copper ribbon voice coil. This small drive unit has a smooth, extended frequency range with excellent transients and low distortion. Key Features: Aluminium cone - excellent transients Non resonant chassis 25mm copper ribbon voicecoil High compliance rubber suspension Kapton voice coil former Smooth frequency response Neodymium magnet system Underhung, long throw design Basic parameters: Resonant frequency (fs) 97 Hz Nominal impedance (Zn) 4 / 8 Ω Mechanical Q factor (Qms) 4.88 DC resistance (Re) 3.2 / 5.8 Ω Electrical Q factor (Qes) 0.57 RMS power handling 15 W Total Q factor (Qts) 0.51 Sensitivity (2.83V/1m) 85.3dB Equivalent volume (Vas) 1.4L Chassis diameter 88.4 mm Here's the full datasheet: Show more