Dayton Audio Designer DSA115-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.4dB
• Frequency response 63 - 11000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 63.3Hz
• Mechanical quality factor QMS 2.00
• Electrical quality factor QES 0.53
• Total quality factor QTS 0.42

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 5.9Ω
• Inductance (1kHz) LE 0.63mH
• VC Diameter 25.4mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 5.44N/A
• Motor constant Bl/√RE 2.24N/√W
• Weight 0.312kg
• Material Ferrite

Diaphragm

• Effective diameter 83mm
• Effective area SD 54.1cm²
• Moving mass MMS 6.7g
• Moving mass (without air load) MMD 6.4g
• Material Aluminum

Suspensions

• Stiffness KMS 1.06N/mm
• Compliance CMS 940µm/N
• Equivalent volume to the compliance VAS 3.96L
• Mechanical resistance RMS 1.33N·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