Dayton Audio Reference RS100-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.5dB
• Frequency response 90 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 92.2Hz
• Mechanical quality factor QMS 2.37
• Electrical quality factor QES 0.76
• Total quality factor QTS 0.58

Large signal parameters

• Maximum linear excursion xmax 3.5mm
• Air volume displaced at xmax VD 12cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.4Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 25mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 4.2N/A
• Motor constant Bl/√RE 1.66N/√W
• Material Ferrite

Diaphragm

• Effective diameter 67mm
• Effective area SD 35.3cm²
• Moving mass MMS 3.63g
• Moving mass (without air load) MMD 3.5g
• Material Black Anodized Aluminum

Suspensions

• Stiffness KMS 1.22N/mm
• Compliance CMS 820µm/N
• Equivalent volume to the compliance VAS 1.43L
• Mechanical resistance RMS 0.89N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 4″
• 98mm
• Overall diameter 98mm
• Baffle cutout diameter 77mm
• Overall depth 51mm
• Volume occupied by the driver (estimated) 0.13L
• Frame material Cast Aluminium