EASTECH 15L90EHC18091B

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.2dB

Thiele & Small parameters

• Resonance frequency (free air) fS 65.5Hz
• Mechanical quality factor QMS 7.74
• Electrical quality factor QES 0.89
• Total quality factor QTS 0.80

Large signal parameters

• Maximum linear excursion xmax 4.2mm
• Air volume displaced at xmax VD 53cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.914mH
• VC Diameter 30.5mm
• Winding height HVC 14.4mm
• Winding material PISVW
• Former material Aluminum

Magnet

• Force factor Bl 7.71N/A
• Motor constant Bl/√RE 4.18N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 127mm
• Effective area SD 126cm²
• Moving mass MMS 37.7g
• Moving mass (without air load) MMD 36.7g
• Material Paper

Suspensions

• Stiffness KMS 6.41N/mm
• Compliance CMS 156µm/N
• Equivalent volume to the compliance VAS 3.53L
• Mechanical resistance RMS 2.01N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6″
• 152mm
• Volume occupied by the driver (estimated) 0.47L
• Net weight 1.168kg
• Frame material Steel