Dayton Audio Designer DS115-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.7dB
• Frequency response 60 - 8000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 55.2Hz
• Mechanical quality factor QMS 2.10
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.38

Large signal parameters

• Maximum linear excursion xmax 4.1mm
• Air volume displaced at xmax VD 22cm³
• Power handling P 35W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 0.8mH
• VC Diameter 25.4mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 5.88N/A
• Motor constant Bl/√RE 2.44N/√W
• Weight 0.312kg
• Material Ferrite

Diaphragm

• Effective diameter 83mm
• Effective area SD 54.1cm²
• Moving mass MMS 7.9g
• Moving mass (without air load) MMD 7.6g
• Material Coated Paper

Suspensions

• Stiffness KMS 0.952N/mm
• Compliance CMS 1050µm/N
• Equivalent volume to the compliance VAS 4.33L
• Mechanical resistance RMS 1.3N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 4″
• 116mm
• Overall diameter 116mm
• Baffle cutout diameter 94mm
• Overall depth 55mm
• Volume occupied by the driver (estimated) 0.18L
• Frame material Steel