Dayton Audio Point Source PS180-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93dB
• Frequency response 48 - 25000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 58.5Hz
• Mechanical quality factor QMS 3.64
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 4.6mm
• Air volume displaced at xmax VD 61cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.4Ω
• Inductance (1kHz) LE 0.63mH
• VC Diameter 25.4mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 6.82N/A
• Motor constant Bl/√RE 2.7N/√W
• Material Neodymium

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 7g
• Moving mass (without air load) MMD 5.8g
• Material Paper / Kevlar

Suspensions

• Stiffness KMS 0.952N/mm
• Compliance CMS 1050µm/N
• Equivalent volume to the compliance VAS 27.6L
• Mechanical resistance RMS 0.71N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 6.5″
• 180mm
• Overall diameter 180mm
• Baffle cutout diameter 145mm
• Overall depth 78mm
• Volume occupied by the driver (estimated) 0.51L
• Frame material Cast Aluminium