EM 428D
EM 428D topEM 428D front
EM 428D front
EM 428D top
EM 428D front

EM 428D

Elite Midrange, Ø 4″, Ø 2.1″ VC ,8Ω, 150W, 87.5dB, FS 69Hz, QTS 0.33

Overall Dimensions DxH 118.5mm(4.66")x45mm(1.77")
Nominal Power Handling (DIN) P150W
Transient Power 10ms 800W
Sensitivity 2.83V/1M 87.5 dB SPL
Frequency Response See graph
Cone/Dome Material Damped Polymer Composite
Net Weight Kg0.48
Nominal Impedance Z
DC Resistance Re5.5Ω
Voice Coil Inductance @ 1KHz LBM0.33mH
Voice Coil Diameter DIA54mm
Voice Coil Height 12mm
HE Magnetic Gap Height HE4mm
Max. Linear Excursion X± 4mm
Voice Coil Former Aluminum
Voice Coil Wire Hexatech™ Aluminum
Number Of Layers 2
Magnet System Type Neodymium vented
B Flux Density B0.79 T
BL Product BXL5.95 N.A
1V
Suspension ComplianceCms0.9115 mm/N
Mechanical Q FactorQms1.8091
Electrical Q FactorQes0.395
Total Q FactorQts0.33
Mechanical ResistanceRms1.4 Kg/s
Moving MassMms5.9 g
Eq. Cas Air Load (liters)VAS4.1 Lt
Resonance FrequencyFs69 Hz
Effective Piston AreaSD57 cm ²

Product Information

Features

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

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  • Specifications