P.Audio E15-300S v2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.3dB
• Frequency response 40 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 7.59
• Electrical quality factor QES 0.38
• Total quality factor QTS 0.36

Large signal parameters

• Maximum linear excursion xmax 4.3mm
• Air volume displaced at xmax VD 363cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.4Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 76.2mm
• Winding height HVC 18.5mm
• Winding material SV-W
• Former material Kapton

Magnet

• Flux density B 1.2T
• Force factor Bl 20.1N/A
• Motor constant Bl/√RE 7.93N/√W
• Air gap height HAG 10mm
• Material Ferrite

Diaphragm

• Effective diameter 332mm
• Effective area SD 855cm²
• Moving mass MMS 85.6g
• Moving mass (without air load) MMD 68.1g
• Material Paper

Suspensions

• Stiffness KMS 6.62N/mm
• Compliance CMS 151µm/N
• Equivalent volume to the compliance VAS 156L
• Mechanical resistance RMS 3.12N·s/m
• Surround material Cloth
• Spider material Cotton (Single)

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 390mm
• Baffle cutout diameter 360mm
• Overall depth 162mm
• Flange thickness 10mm
• Mounting depth 152mm
• Volume occupied by the driver (estimated) 3.8L
• Net weight 7.3kg
• Frame material Steel