P.Audio 12FT-100MB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 70 - 2500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 73Hz
• Mechanical quality factor QMS 9.97
• Electrical quality factor QES 0.53
• Total quality factor QTS 0.50

Large signal parameters

• Maximum linear excursion xmax 5.8mm
• Air volume displaced at xmax VD 305cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.75mH
• VC Diameter 99.3mm
• Winding height HVC 21mm
• Winding material Flat aluminium wire
• Former material Kapton

Magnet

• Flux density B 1.1T
• Force factor Bl 19.7N/A
• Motor constant Bl/√RE 7.9N/√W
• Air gap height HAG 9.5mm
• Material Ferrite

Diaphragm

• Effective diameter 261mm
• Effective area SD 531cm²
• Moving mass MMS 71.6g
• Moving mass (without air load) MMD 62.9g
• Material Paper

Suspensions

• Stiffness KMS 15.4N/mm
• Compliance CMS 65µm/N
• Equivalent volume to the compliance VAS 26.1L
• Mechanical resistance RMS 3.29N·s/m
• Surround material Cloth
• Spider material Cotton

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 314mm
• Baffle cutout diameter 283mm
• Overall depth 145mm
• Flange thickness 15mm
• Mounting depth 130mm
• Volume occupied by the driver (estimated) 3.7L
• Net weight 9.8kg
• Frame material Aluminium