Dayton Audio DMA80-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.8dB
• Frequency response 90 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 93.5Hz
• Mechanical quality factor QMS 1.97
• Electrical quality factor QES 0.51
• Total quality factor QTS 0.41

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 7.8cm³
• Power handling P 25W
• Program power Pmax 50W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 4.0Ω
• Inductance (1kHz) LE 0.2mH
• VC Diameter 25.4mm

Magnet

• Force factor Bl 3.7N/A
• Motor constant Bl/√RE 1.85N/√W

Diaphragm

• Effective diameter 63mm
• Effective area SD 31.2cm²
• Moving mass MMS 3.02g
• Moving mass (without air load) MMD 2.9g

Suspensions

• Stiffness KMS 1.04N/mm
• Compliance CMS 960µm/N
• Equivalent volume to the compliance VAS 1.42L
• Mechanical resistance RMS 0.9N·s/m

Dimensions

• Nominal diameter 3″
• 76mm