Eminence LEGEND BP122

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.2dB
• Frequency response 35 - 2300Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 9.26
• Electrical quality factor QES 0.57
• Total quality factor QTS 0.54

Large signal parameters

• Maximum linear excursion xmax 6.2mm
• Maximum excursion before damage xlim 12.4mm
• Air volume displaced at xmax VD 330cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.84mH
• VC Diameter 50.8mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 10.6N/A
• Motor constant Bl/√RE 4.43N/√W
• Air gap height HAG 7.9mm
• Weight 1.077kg
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 532cm²
• Moving mass MMS 50g
• Moving mass (without air load) MMD 41.3g
• Material Paper

Suspensions

• Stiffness KMS 2.5N/mm
• Compliance CMS 400µm/N
• Equivalent volume to the compliance VAS 157L
• Mechanical resistance RMS 1.19N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 311mm
• Baffle cutout diameter 281mm
• Overall depth 135mm
• Volume occupied by the driver 2.01L
• Net weight 4.082kg
• Frame material Pressed Steel