Fountek FR58EX
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 |
