Eminence DELTALITE II 2512

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.3dB
• Frequency response 58 - 4300Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 4.17
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.41

Large signal parameters

• Maximum linear excursion xmax 4.9mm
• Maximum excursion before damage xlim 8.5mm
• Air volume displaced at xmax VD 255cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 0.43mH
• VC Diameter 64mm
• Winding material Aluminum
• Former material Polyimide

Magnet

• Force factor Bl 10.7N/A
• Motor constant Bl/√RE 4.7N/√W
• Air gap height HAG 7mm
• Weight 0.198kg
• Material Neodymium

Diaphragm

• Effective diameter 257mm
• Effective area SD 520cm²
• Moving mass MMS 37g
• Moving mass (without air load) MMD 28.5g
• Material Paper

Suspensions

• Stiffness KMS 2.78N/mm
• Compliance CMS 360µm/N
• Equivalent volume to the compliance VAS 135L
• Mechanical resistance RMS 2.45N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 315mm
• Baffle cutout diameter 281mm
• Overall depth 154mm
• Volume occupied by the driver 1.42L
• Net weight 2.31kg
• Frame material Die-cast aluminum