Morel Elite ECW 638

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.1dB

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 1.42
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 71cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.0Ω
• Inductance (1kHz) LE 0.26mH
• VC Diameter 75mm
• Winding height HVC 18mm
• Winding material Hexatech™ Aluminum
• Former material Aluminum

Magnet

• Flux density B 0.8T
• Force factor Bl 7.45N/A
• Motor constant Bl/√RE 3.33N/√W
• Air gap height HAG 6mm
• Material Hybrid™ Neodymium/Ferrite

Diaphragm

• Effective diameter 123mm
• Effective area SD 119cm²
• Moving mass MMS 16g
• Moving mass (without air load) MMD 15g
• Material Damped polymer composite

Suspensions

• Stiffness KMS 1.01N/mm
• Compliance CMS 994µm/N
• Equivalent volume to the compliance VAS 19L
• Mechanical resistance RMS 2.82N·s/m

Dimensions

• Nominal diameter 6″
• 160mm
• Overall diameter 160mm
• Baffle cutout diameter 140mm
• Overall depth 69mm
• Flange thickness 6mm
• Mounting depth 63mm
• Volume occupied by the driver (estimated) 0.38L
• Net weight 1.2kg