Dayton Audio PA310-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.8dB
• Frequency response 44 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 8.85
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 266cm³
• Power handling P 450W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 1.68mH
• VC Diameter 76mm
• Winding material Copper
• Former material Kapton® / Polyimide

Magnet

• Force factor Bl 18N/A
• Motor constant Bl/√RE 7.68N/√W
• Weight 2.268kg
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 72.8g
• Moving mass (without air load) MMD 64.2g
• Material Paper / Carbon Fiber

Suspensions

• Stiffness KMS 4.35N/mm
• Compliance CMS 230µm/N
• Equivalent volume to the compliance VAS 91.8L
• Mechanical resistance RMS 2.02N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 12″
• 310mm
• Overall diameter 310mm
• Baffle cutout diameter 283mm
• Overall depth 143mm
• Volume occupied by the driver (estimated) 2.4L
• Frame material Steel