Dayton Audio CE81PF-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.2dB
• Frequency response 80 - 18000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 97Hz
• Mechanical quality factor QMS 7.92
• Electrical quality factor QES 0.90
• Total quality factor QTS 0.81

Large signal parameters

• Maximum linear excursion xmax 2.7mm
• Air volume displaced at xmax VD 7.6cm³
• Power handling P 15W
• Program power Pmax 30W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.7Ω
• Inductance (1kHz) LE 0.14mH
• VC Diameter 20mm

Magnet

• Force factor Bl 3.72N/A
• Motor constant Bl/√RE 1.44N/√W

Diaphragm

• Effective diameter 60mm
• Effective area SD 28.3cm²
• Moving mass MMS 3g
• Moving mass (without air load) MMD 2.9g

Suspensions

• Stiffness KMS 1.13N/mm
• Compliance CMS 889µm/N
• Equivalent volume to the compliance VAS 0.998L
• Mechanical resistance RMS 0.23N·s/m

Dimensions

• Nominal diameter 3″
• 81mm
• Overall diameter 81mm
• Baffle cutout diameter 70mm
• Overall depth 51mm
• Volume occupied by the driver (estimated) 0.1L