Fountek FR58EX Full Range Drive Unit

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The Fountek FR58EX is a compact 53mm full range drive unit featuring an aluminium cone and high flux neodymium magnet. This small drive unit has an excellent impulse response and a surprising total linear excursion of just under 6mm. The frequency response is smooth with low distortion. Key Features: Aluminium cone / dust cap Rigid pressed steel chassis 20mm copper voicecoil High compliance rubber suspension Aluminium voice coil former Smooth frequency response Neodymium magnet Basic parameters: Resonant frequency (fs) 134 Hz Nominal impedance (Zn) 8 Ω Mechanical Q factor (Qms) 2.60 DC resistance (Re) 6.4 Ω Electrical Q factor (Qes) 0.67 RMS power handling 15 W Total Q factor (Qts) 0.54 Sensitivity (2.83V/1m) 82.3dB Equivalent volume (Vas) 0.31L Chassis (square) 62 mm Here's the full datasheet: Show more