P.Audio 12FT-88MB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
• Frequency response 45 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 49Hz
• Mechanical quality factor QMS 6.31
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 4.8mm
• Air volume displaced at xmax VD 252cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 0.83mH
• VC Diameter 88.9mm
• Winding height HVC 19mm
• Winding material Flat aluminium wire
• Former material Kapton

Magnet

• Flux density B 1.3T
• Force factor Bl 19.8N/A
• Motor constant Bl/√RE 7.88N/√W
• Air gap height HAG 9.5mm
• Material Ferrite

Diaphragm

• Effective diameter 261mm
• Effective area SD 531cm²
• Moving mass MMS 62.1g
• Moving mass (without air load) MMD 53.4g
• Material Paper

Suspensions

• Stiffness KMS 6.1N/mm
• Compliance CMS 164µm/N
• Equivalent volume to the compliance VAS 65.7L
• Mechanical resistance RMS 3.03N·s/m
• Surround material Cloth
• Spider material Cotton

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 313mm
• Baffle cutout diameter 283mm
• Overall depth 155mm
• Flange thickness 15mm
• Mounting depth 140mm
• Volume occupied by the driver (estimated) 3.7L
• Net weight 9.2kg
• Frame material Aluminium