P.Audio EX15-500S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.3dB
• Frequency response 45 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45Hz
• Mechanical quality factor QMS 6.09
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 398cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 0.88mH
• VC Diameter 76.2mm
• Winding height HVC 18.5mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.1T
• Force factor Bl 18.8N/A
• Motor constant Bl/√RE 7.49N/√W
• Air gap height HAG 9.5mm
• Material Ferrite

Diaphragm

• Effective diameter 333mm
• Effective area SD 885cm²
• Moving mass MMS 92.5g
• Moving mass (without air load) MMD 74.4g
• Material Paper

Suspensions

• Stiffness KMS 8.2N/mm
• Compliance CMS 122µm/N
• Equivalent volume to the compliance VAS 136L
• Mechanical resistance RMS 4.3N·s/m
• Surround material Cloth
• Spider material Cotton (Single)

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 390mm
• Baffle cutout diameter 360mm
• Overall depth 165mm
• Flange thickness 10mm
• Mounting depth 155mm
• Volume occupied by the driver (estimated) 3.8L
• Net weight 7.3kg
• Frame material Steel