Morel Elite EM 428
Mid-range
4″ / 119 mm
Nominal diameter
68 Hz
Resonance
0.41
Q factor
85 dB
Sensitivity
± 3 mm
Linear excursion
300 W
Program Power
![Morel EM 428 Mid-range](/Morel/EM_428/Morel_EM_428_(Photo_1).jpg)
![Morel EM 428 Mid-range](/Morel/EM_428/Morel_EM_428_(Photo_3).jpg)
![Morel EM 428 Mid-range](/Morel/EM_428/Morel_EM_428_(Photo_4).jpg)
- Parts Express
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 85.4
- dB
- Resonance frequency (free air)
- fS
- 68.0
- Hz
- Mechanical quality factor
- QMS
- 3.03
- Electrical quality factor
- QES
- 0.48
- Total quality factor
- QTS
- 0.41
- Maximum linear excursion
- xmax
- 3.0
- mm
- Air volume displaced at xmax
- VD
- 17
- cm³
- Power handling
- P
- 150
- W
- Program power
- Pmax
- 300
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.4
- Ω
- Inductance (1kHz)
- LE
- 0.36
- mH
- VC Diameter
- 54
- mm
- Winding height
- HVC
- 12
- mm
- Winding material
- Hexatech™ Aluminum
- Former material
- Aluminum
- Flux density
- B
- 0.88
- T
- Force factor
- Bl
- 5.4
- N/A
- Motor constant
- Bl/√RE
- 2.32
- N/√W
- Air gap height
- HAG
- 6
- mm
- Material
- Neodymium vented
- Effective diameter
- 85
- mm
- Effective area
- SD
- 57
- cm²
- Moving mass
- MMS
- 6.6
- g
- Moving mass (without air load)
- MMD
- 6.2
- g
- Material
- Damped polymer composite
- Stiffness
- KMS
- 1.14
- N/mm
- Compliance
- CMS
- 880
- µm/N
- Equivalent volume to the compliance
- VAS
- 3.5
- L
- Mechanical resistance
- RMS
- 0.86
- N·s/m
- Nominal diameter
- 4
- ″
- 119
- mm
- Overall diameter
- 119
- mm
- Baffle cutout diameter
- 94
- mm
- Overall depth
- 56
- mm
- Flange thickness
- 5
- mm
- Mounting depth
- 51
- mm
- Volume occupied by the driver (estimated)
- 0.16
- L
- Net weight
- 0.518
- kg
Available on (affiliate link)
Specifications
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![Morel EM 428 Impedance](/Morel/EM_428/Morel_EM_428_(Impedance).jpg)
![Morel EM 428 SPL](/Morel/EM_428/Morel_EM_428_(Frequency_response).jpg)
Export this driver to a simulation software:
![WinISD](/images/export/WinISD.png)
![Basta!](/images/export/Basta.png)
![Hornresp](/images/export/Hornresp.png)
![QSpeakers](/images/export/QSpeakers.png)
![SpeakerSim](/images/export/SpeakerSim.png)
![MfbLabs](/images/export/MfbLabs.png)
![Speakerbench](/images/export/Speakerbench.png)