Dayton Audio CE40P-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 80dB
• Frequency response 200 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 228Hz
• Mechanical quality factor QMS 4.19
• Electrical quality factor QES 1.63
• Total quality factor QTS 1.17

Large signal parameters

• Maximum linear excursion xmax 1.2mm
• Air volume displaced at xmax VD 0.8cm³
• Power handling P 2W
• Program power Pmax 4W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.3Ω
• Inductance (1kHz) LE 0.25mH
• VC Diameter 13mm

Magnet

• Force factor Bl 1.98N/A
• Motor constant Bl/√RE 0.73N/√W
• Material Neodymium

Diaphragm

• Effective diameter 29mm
• Effective area SD 6.8cm²
• Moving mass MMS 0.6g
• Moving mass (without air load) MMD 0.6g
• Material Paper

Suspensions

• Stiffness KMS 1.25N/mm
• Compliance CMS 800µm/N
• Equivalent volume to the compliance VAS 0.01L
• Mechanical resistance RMS 0.2N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 1.5″
• 40mm
• Overall diameter 40mm
• Baffle cutout diameter 36mm
• Overall depth 23mm