Dayton Audio Reference RS75-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.3dB
• Frequency response 160 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 185Hz
• Mechanical quality factor QMS 5.12
• Electrical quality factor QES 1.35
• Total quality factor QTS 1.07

Large signal parameters

• Maximum linear excursion xmax 1.3mm
• Air volume displaced at xmax VD 1.6cm³
• Power handling P 15W
• Program power Pmax 30W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.32mH
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 2.55N/A
• Motor constant Bl/√RE 1.02N/√W
• Material AlNiCo

Diaphragm

• Effective diameter 39mm
• Effective area SD 12cm²
• Moving mass MMS 1.23g
• Moving mass (without air load) MMD 1.2g
• Material Aluminum

Suspensions

• Stiffness KMS 1.67N/mm
• Compliance CMS 600µm/N
• Equivalent volume to the compliance VAS 0.113L
• Mechanical resistance RMS 0.28N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 3″
• 75mm
• Overall diameter 72mm
• Baffle cutout diameter 54mm
• Overall depth 39mm