Morel EW 428D

Morel EW 428 Elite Series 4" woofers feature large diameter voice coils, open yet strong frames, advanced composite cones, and carefully engineered magnetic circuits. Frequency response is extremely flat and overall definition is superb. Suitable for the most demanding audio reproduction systems.

Features

• Uniflow™ steel chassis
• Neodymium magnet system
• 2.1″ Large Hexatech™ Aluminum voice coil
• High power handling
• Shallow profile D.P.C cone
• High linear excursion

Specifications

• power handling (continuous/programme) = 150 W
• frequency range = 45-3500 Hz
• resonance frequency fs = 62 Hz
• impedance R = 8 Ohm
• sound pressure level SPL = 87 dB (2,83V; 1m)
• DC resistance Re = 6,3 Ohm
• force factor BL = 6,1 N/A
• voice coil inductance L = 0,44 mH
• effective piston radiating area Sd = 57 cm²
• effective mechanical mass incl. air load mms = 6,16 g
• equivalent volume of compliance Vas = 4,7 l
• total Q factor Qts = 0,35 (Qms=2,36, Qes=0,41)
• voice coil diameter = 54 mm
• maximum peak linear excursion vibration x_lin = +/- 4,5 mm
• mounting diameter d = 94 mm
• overall diameter d = 118,5 mm
• mounting depth (not countersunk) t = 51 mm