Eminence DELTA-15LFA

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95dB
• Frequency response 42 - 3200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 6.30
• Electrical quality factor QES 0.52
• Total quality factor QTS 0.48

Large signal parameters

• Maximum linear excursion xmax 4.8mm
• Maximum excursion before damage xlim 16.5mm
• Air volume displaced at xmax VD 419cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 1.37mH
• VC Diameter 63.5mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 14.6N/A
• Motor constant Bl/√RE 5.91N/√W
• Air gap height HAG 9.5mm
• Weight 1.588kg
• Material Ferrite

Diaphragm

• Effective diameter 333mm
• Effective area SD 873cm²
• Moving mass MMS 75g
• Moving mass (without air load) MMD 57.3g
• Material Paper

Suspensions

• Stiffness KMS 4.35N/mm
• Compliance CMS 230µm/N
• Equivalent volume to the compliance VAS 241L
• Mechanical resistance RMS 2.92N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 385mm
• Baffle cutout diameter 352mm
• Overall depth 160mm
• Volume occupied by the driver 3.62L
• Net weight 5.806kg
• Frame material Pressed Steel