Dayton Audio Reference RS150P-8A

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.5dB
• Frequency response 49 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 47.1Hz
• Mechanical quality factor QMS 1.66
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 34cm³
• Power handling P 40W
• Program power Pmax 65W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.7Ω
• Inductance (1kHz) LE 0.65mH
• VC Diameter 25mm

Magnet

• Force factor Bl 5.6N/A
• Motor constant Bl/√RE 2.16N/√W
• Material Ferrite

Diaphragm

• Effective diameter 104mm
• Effective area SD 85cm²
• Moving mass MMS 6.9g
• Moving mass (without air load) MMD 6.3g
• Material Paper / Kevlar

Suspensions

• Stiffness KMS 0.606N/mm
• Compliance CMS 1650µm/N
• Equivalent volume to the compliance VAS 16.7L
• Mechanical resistance RMS 1.23N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6″
• 150mm
• Overall diameter 150mm
• Baffle cutout diameter 122mm
• Overall depth 74mm
• Volume occupied by the driver (estimated) 0.38L
• Frame material Cast Aluminium