Eminence DOUBLE-T 12

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.8dB
• Frequency response 50 - 3800Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 53Hz
• Mechanical quality factor QMS 19.59
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.30

Large signal parameters

• Maximum linear excursion xmax 2.4mm
• Air volume displaced at xmax VD 122cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.57mH
• VC Diameter 76.2mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 18.2N/A
• Motor constant Bl/√RE 7.7N/√W
• Air gap height HAG 9.1mm
• Weight 0.312kg
• Material Neodymium

Diaphragm

• Effective diameter 257mm
• Effective area SD 520cm²
• Moving mass MMS 54g
• Moving mass (without air load) MMD 45.5g
• Material Paper

Suspensions

• Stiffness KMS 5.88N/mm
• Compliance CMS 170µm/N
• Equivalent volume to the compliance VAS 63.7L
• Mechanical resistance RMS 0.92N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 314mm
• Baffle cutout diameter 280mm
• Overall depth 143mm
• Volume occupied by the driver 2.55L
• Net weight 3.221kg
• Frame material Die-cast Aluminium