Eminence ALPHA 3-32

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.3dB
• Frequency response 150 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 117Hz
• Mechanical quality factor QMS 5.87
• Electrical quality factor QES 0.85
• Total quality factor QTS 0.74

Large signal parameters

• Maximum linear excursion xmax 2.6mm
• Maximum excursion before damage xlim 4mm
• Air volume displaced at xmax VD 7.4cm³
• Power handling P 35W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 32Ω
• DC resistance RE 22.4Ω
• Inductance (1kHz) LE 0.23mH
• VC Diameter 20mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 6.46N/A
• Motor constant Bl/√RE 1.36N/√W
• Air gap height HAG 2mm
• Weight 0.227kg
• Material Ferrite

Diaphragm

• Effective diameter 60mm
• Effective area SD 28.6cm²
• Moving mass MMS 2g
• Moving mass (without air load) MMD 1.9g
• Material Paper/Poly sandwich

Suspensions

• Stiffness KMS 1.16N/mm
• Compliance CMS 860µm/N
• Equivalent volume to the compliance VAS 0.98L
• Mechanical resistance RMS 0.25N·s/m
• Surround material Poly

Dimensions

• Nominal diameter 3″
• 101mm
• Overall diameter 101mm
• Baffle cutout diameter 77mm
• Overall depth 45mm
• Volume occupied by the driver (estimated) 0.11L
• Net weight 0.408kg
• Frame material Pressed Steel