P.Audio P180/2242 v3

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94dB
• Frequency response 40 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 46Hz
• Mechanical quality factor QMS 7.41
• Electrical quality factor QES 0.75
• Total quality factor QTS 0.68

Large signal parameters

• Maximum linear excursion xmax 6.8mm
• Air volume displaced at xmax VD 833cm³
• Power handling P 1200W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.97mH
• VC Diameter 99.3mm
• Winding height HVC 25.5mm
• Winding material Flat aluminium wire
• Former material Glass fiber

Magnet

• Flux density B 1T
• Force factor Bl 20.2N/A
• Motor constant Bl/√RE 8.54N/√W
• Air gap height HAG 12mm
• Material Ferrite

Diaphragm

• Effective diameter 405mm
• Effective area SD 1225cm²
• Moving mass MMS 187g
• Moving mass (without air load) MMD 157g
• Material Paper

Suspensions

• Stiffness KMS 16.1N/mm
• Compliance CMS 62µm/N
• Equivalent volume to the compliance VAS 131L
• Mechanical resistance RMS 7.29N·s/m
• Surround material Cloth
• Spider material Cotton (Double Silicone)

Dimensions

• Nominal diameter 18″
• 457mm
• Overall diameter 466mm
• Baffle cutout diameter 426mm
• Overall depth 237mm
• Flange thickness 19mm
• Mounting depth 218mm
• Volume occupied by the driver (estimated) 8.8L
• Net weight 15.5kg
• Frame material Aluminium