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EW 428 Elite Woofer, Ø 4", Ø 2.1" voicecoil, 8Ω SPECIFICATIONS General Data
FEATURES
Overall Dimensions DxH 118.5mm(4.66")x56mm(2.20") Nominal Power Handling (DIN) P 150W Transient Power 10ms 800W Sensitivity 2.83V/1M 87dB SPL Frequency Response See graph Cone Material Damped Polymer Composite Kg 0.518 Net Weight
* 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
Electrical Data
Unit Dimensions
Nominal Impedance Z 8Ω Re 6.3Ω DC Resistance Voice Coil Inductance @ 1KHz LBM 0.44mH
Voice Coil and Magnet Parameters Voice Coil Diameter Voice Coil Height HE Magnetic Gap Height Max. Linear Excursion Voice Coil Former Voice Coil Wire Number Of Layers Magnet System Type B Flux Density BL Product
DIA
54mm 14mm HE 5mm X ± 4.5mm Aluminum Hexatech™ Aluminum 2 Neodymium vented B 0.94 T BXL 6.1 N.A
T-S Parameters Suspension Compliance Mechanical Q Factor Electrical Q Factor Total Q Factor Mechanical Resistance Moving Mass Eq. Cas Air Load (liters) Resonant Frequency Effective Piston Area
Cms Qms Qes Qts Rms Mms VAS Fs SD
1.046 mm/N 2.36 0.41 0.35 1.02 Kg/s 6.16 g 4.7 Lt 62 Hz 57 cm ²
A - Overall diameter B - Cut out diameter C - Flange thickness D - Overall height E - Basket + magnet depth F - Mounting holes location diameter G - 4 Mounting holes, at 90º interval, inner hole diameter
Measured on IEC baffle using Bruel & Kjaer 3144 model microphone. Morel operate policy of continuous product design improvement, consequently specifications are subject to alteration without prior notice.
118.5mm 94mm 5mm 56mm 51mm 110mm Ø 3mm
