P.Audio 15NT-115XB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 35 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 7.80
• Electrical quality factor QES 0.27
• Total quality factor QTS 0.26

Large signal parameters

• Maximum linear excursion xmax 9.8mm
• Air volume displaced at xmax VD 834cm³
• Power handling P 1600W
• Program power Pmax 3200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 0.97mH
• VC Diameter 114.4mm
• Winding height HVC 33mm
• Winding material Copper
• Former material Glass fiber

Magnet

• Flux density B 1.2T
• Force factor Bl 27.8N/A
• Motor constant Bl/√RE 12.3N/√W
• Air gap height HAG 13.5mm
• Material Neodymium

Diaphragm

• Effective diameter 332mm
• Effective area SD 855cm²
• Moving mass MMS 179g
• Moving mass (without air load) MMD 161g
• Material Waterproof Paper

Suspensions

• Stiffness KMS 9.9N/mm
• Compliance CMS 101µm/N
• Equivalent volume to the compliance VAS 105L
• Mechanical resistance RMS 5.33N·s/m
• Surround material Cloth
• Spider material Cotton (Double silicone)

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 386mm
• Baffle cutout diameter 355mm
• Overall depth 206mm
• Flange thickness 18mm
• Mounting depth 188mm
• Volume occupied by the driver (estimated) 5.8L
• Net weight 11.3kg
• Frame material Aluminium