P.Audio 12FT-76MB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.4dB
• Frequency response 50 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 52Hz
• Mechanical quality factor QMS 6.60
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 4.8mm
• Air volume displaced at xmax VD 255cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.5Ω
• Inductance (1kHz) LE 0.43mH
• VC Diameter 76.2mm
• Winding height HVC 19mm
• Winding material Flat aluminium wire
• Former material Kapton

Magnet

• Flux density B 1.3T
• Force factor Bl 18.3N/A
• Motor constant Bl/√RE 7.16N/√W
• Air gap height HAG 9.5mm
• Material Ferrite

Diaphragm

• Effective diameter 264mm
• Effective area SD 531cm²
• Moving mass MMS 57.2g
• Moving mass (without air load) MMD 48.5g
• Material Paper

Suspensions

• Stiffness KMS 6.21N/mm
• Compliance CMS 161µm/N
• Equivalent volume to the compliance VAS 64.2L
• Mechanical resistance RMS 2.83N·s/m
• Surround material Cloth
• Spider material Cotton

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 314mm
• Baffle cutout diameter 283mm
• Overall depth 152mm
• Flange thickness 15mm
• Mounting depth 137mm
• Volume occupied by the driver (estimated) 3.4L
• Net weight 8.4kg
• Frame material Aluminium