Dayton Audio Designer DS175-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.8dB
• Frequency response 40 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 1.63
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 5.3mm
• Air volume displaced at xmax VD 68cm³
• Power handling P 70W
• Program power Pmax 140W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 1.06mH
• VC Diameter 35.5mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 10.4N/A
• Motor constant Bl/√RE 4.36N/√W
• Weight 0.936kg
• Material Ferrite

Diaphragm

• Effective diameter 128mm
• Effective area SD 129cm²
• Moving mass MMS 26g
• Moving mass (without air load) MMD 24.9g
• Material Coated Paper

Suspensions

• Stiffness KMS 1.41N/mm
• Compliance CMS 710µm/N
• Equivalent volume to the compliance VAS 17L
• Mechanical resistance RMS 3.71N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6.5″
• 176mm
• Overall diameter 176mm
• Baffle cutout diameter 144mm
• Overall depth 81mm
• Volume occupied by the driver (estimated) 0.53L
• Frame material Steel