Eminence LEGEND 1218

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.6dB
• Frequency response 80 - 4200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 100Hz
• Mechanical quality factor QMS 15.51
• Electrical quality factor QES 0.95
• Total quality factor QTS 0.89

Large signal parameters

• Maximum linear excursion xmax 0.8mm
• Air volume displaced at xmax VD 41cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.0Ω
• Inductance (1kHz) LE 0.69mH
• VC Diameter 50.8mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 11.6N/A
• Motor constant Bl/√RE 4.4N/√W
• Air gap height HAG 7.9mm
• Weight 1.077kg
• Material Ferrite

Diaphragm

• Effective diameter 254mm
• Effective area SD 507cm²
• Moving mass MMS 29g
• Moving mass (without air load) MMD 20.9g
• Material Paper

Suspensions

• Stiffness KMS 11.1N/mm
• Compliance CMS 90µm/N
• Equivalent volume to the compliance VAS 31.2L
• Mechanical resistance RMS 1.17N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 306mm
• Baffle cutout diameter 281mm
• Overall depth 130mm
• Volume occupied by the driver 2.01L
• Net weight 3.81kg
• Frame material Pressed Steel