ESX VX12PRO

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 3.95
• Electrical quality factor QES 0.61
• Total quality factor QTS 0.52

Large signal parameters

• Maximum linear excursion xmax 23mm
• Maximum excursion before damage xlim 30mm
• Air volume displaced at xmax VD 1178cm³
• Power handling P 3000W
• Program power Pmax 6000W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 4.0Ω
• Inductance (1kHz, in series) LE 1.52mH
• VC Diameter 100mm
• Winding height HVC 57.5mm
• Former material BASV

Magnet

• Force factor (in series) Bl 23.4N/A
• Motor constant Bl/√RE 11.7N/√W
• Diameter 220mm
• Height 60mm
• Weight 8.505kg

Diaphragm

• Effective diameter 255mm
• Effective area SD 512cm²
• Moving mass MMS 340g
• Moving mass (without air load) MMD 332g
• Material Carbon Composit

Suspensions

• Stiffness KMS 20.8N/mm
• Compliance CMS 48µm/N
• Equivalent volume to the compliance VAS 18L
• Mechanical resistance RMS 21.1N·s/m
• Surround material Foam
• Spider material Triple Nomex

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 314mm
• Baffle cutout diameter 284mm
• Mounting depth 222mm
• Volume occupied by the driver (estimated) 11L
• Net weight 23.0kg
• Frame material Diecast Aluminium