P.Audio GM12-88F

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.3dB
• Frequency response 60 - 2500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 56Hz
• Mechanical quality factor QMS 7.36
• Electrical quality factor QES 0.44
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 1.1mm
• Air volume displaced at xmax VD 56cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.58mH
• VC Diameter 88.9mm
• Winding height HVC 12.1mm
• Winding material AL-W
• Former material Glass fiber

Magnet

• Flux density B 1.1T
• Force factor Bl 17.8N/A
• Motor constant Bl/√RE 7.43N/√W
• Air gap height HAG 10mm
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 69.3g
• Moving mass (without air load) MMD 60.6g
• Material Waterproof Paper

Suspensions

• Stiffness KMS 8.77N/mm
• Compliance CMS 114µm/N
• Equivalent volume to the compliance VAS 45.5L
• Mechanical resistance RMS 3.31N·s/m
• Surround material Cloth
• Spider material Cotton (Silicone Impregnated)

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 314mm
• Baffle cutout diameter 283mm
• Overall depth 146mm
• Flange thickness 17mm
• Mounting depth 129mm
• Volume occupied by the driver (estimated) 3.6L
• Net weight 9.2kg
• Frame material Aluminium