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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.
|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|