Dayton Audio Classic DC380-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.2dB
• Frequency response 20 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 18.8Hz
• Mechanical quality factor QMS 2.87
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.30

Large signal parameters

• Maximum linear excursion xmax 4.4mm
• Air volume displaced at xmax VD 363cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.4Ω
• Inductance (1kHz) LE 3.09mH
• VC Diameter 51mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 20.4N/A
• Motor constant Bl/√RE 8.06N/√W
• Material Ferrite

Diaphragm

• Effective diameter 326mm
• Effective area SD 835cm²
• Moving mass MMS 183g
• Moving mass (without air load) MMD 166g
• Material Treated Paper

Suspensions

• Stiffness KMS 2.56N/mm
• Compliance CMS 390µm/N
• Equivalent volume to the compliance VAS 391L
• Mechanical resistance RMS 7.53N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 15″
• 385mm
• Overall diameter 385mm
• Baffle cutout diameter 349mm
• Overall depth 162mm
• Volume occupied by the driver (estimated) 3.8L
• Frame material Steel