Dayton Audio Designer DSA175-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.8dB
• Frequency response 38 - 7500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38.4Hz
• Mechanical quality factor QMS 1.66
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.29

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 5.8Ω
• Inductance (1kHz) LE 0.85mH
• VC Diameter 35.5mm
• Winding material Copper
• Former material Aluminum

Magnet

• Force factor Bl 9.75N/A
• Motor constant Bl/√RE 4.05N/√W
• Weight 0.936kg
• Material Ferrite

Diaphragm

• Effective diameter 128mm
• Effective area SD 129cm²
• Moving mass MMS 24.2g
• Moving mass (without air load) MMD 23.1g
• Material Aluminum

Suspensions

• Stiffness KMS 1.41N/mm
• Compliance CMS 710µm/N
• Equivalent volume to the compliance VAS 18.7L
• Mechanical resistance RMS 3.51N·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