Dayton Audio PA380-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.3dB
• Frequency response 28 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 31.6Hz
• Mechanical quality factor QMS 12.20
• Electrical quality factor QES 0.27
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 423cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 4.12mH
• VC Diameter 76mm
• Winding material Copper
• Former material Kapton® / Polyimide

Magnet

• Force factor Bl 25.8N/A
• Motor constant Bl/√RE 10.3N/√W
• Weight 2.268kg
• Material Ferrite

Diaphragm

• Effective diameter 328mm
• Effective area SD 845cm²
• Moving mass MMS 147g
• Moving mass (without air load) MMD 130g
• Material Paper / Carbon Fiber

Suspensions

• Stiffness KMS 5.88N/mm
• Compliance CMS 170µm/N
• Equivalent volume to the compliance VAS 175L
• Mechanical resistance RMS 2.39N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 380mm
• Baffle cutout diameter 355mm
• Overall depth 163mm
• Volume occupied by the driver (estimated) 3.8L
• Frame material Steel