Dayton Audio Designer DS215-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.3dB
• Frequency response 35 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34.3Hz
• Mechanical quality factor QMS 1.75
• Electrical quality factor QES 0.38
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 116cm³
• Power handling P 80W
• Program power Pmax 160W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 1.25mH
• VC Diameter 38.5mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 9.89N/A
• Motor constant Bl/√RE 4.11N/√W
• Weight 1.389kg
• Material Ferrite

Diaphragm

• Effective diameter 164mm
• Effective area SD 211cm²
• Moving mass MMS 29.7g
• Moving mass (without air load) MMD 27.4g
• Material Coated Paper

Suspensions

• Stiffness KMS 1.39N/mm
• Compliance CMS 720µm/N
• Equivalent volume to the compliance VAS 43.1L
• Mechanical resistance RMS 3.66N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 8″
• 216mm
• Overall diameter 216mm
• Baffle cutout diameter 180mm
• Overall depth 96mm
• Volume occupied by the driver (estimated) 0.87L
• Frame material Steel