P.Audio 15FT-115XB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.1dB
• Frequency response 35 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 8.20
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 9.5mm
• Air volume displaced at xmax VD 808cm³
• Power handling P 1600W
• Program power Pmax 3200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 1.03mH
• VC Diameter 114.4mm
• Winding height HVC 33mm
• Winding material Round Copper Wire
• Former material Glass Fiber

Magnet

• Flux density B 1.1T
• Force factor Bl 26.8N/A
• Motor constant Bl/√RE 11.6N/√W
• Air gap height HAG 14mm
• Material Ferrite

Diaphragm

• Effective diameter 332mm
• Effective area SD 850cm²
• Moving mass MMS 223g
• Moving mass (without air load) MMD 205g
• Material Waterproof Paper

Suspensions

• Stiffness KMS 10.1N/mm
• Compliance CMS 99µm/N
• Equivalent volume to the compliance VAS 104L
• Mechanical resistance RMS 5.97N·s/m
• Surround material Cloth
• Spider material Double Silicone

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 386mm
• Baffle cutout diameter 355mm
• Overall depth 197mm
• Flange thickness 17mm
• Mounting depth 180mm
• Volume occupied by the driver (estimated) 7.4L
• Net weight 17.4kg
• Frame material Aluminium