Morel EW 428
The Morel EW 428 is a 4 inch 8 ohm Woofer from the Elite range featuring the Morel Uniflow rigid steel chassis, a powerful Neodymium magnet system, 2.1 inch Hexatech aluminium voice coil and a shallow DPC (damped composite polymer) cone. The rated power is high at 150w nominal, 800w peak. This driver features a large vent in the pole piece for minimal compression when driven hard and has a high maximum linear excursion of 9mm.
| Resonant frequency (fs) | 62 Hz | Nominal impedance (Zn) | 8 Ω |
| Mechanical Q factor (Qms) | 2.36 | DC resistance (Re) | 6.3 Ω |
| Electrical Q factor (Qes) | 0.41 | RMS power handling | 150W |
| Total Q factor (Qts) | 0.35 | Sensitivity (2.83V/1m) | 87 dB |
| Equivalent volume (Vas) | 4.7 L | Chassis diameter | 118.5 mm |
EW428