ESX Vision VE1222

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 5.22
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 17.5mm
• Maximum excursion before damage xlim 25mm
• Air volume displaced at xmax VD 893cm³
• 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 2.2mH
• VC Diameter 76mm
• Winding height HVC 50mm

Magnet

• Force factor (in series) Bl 25.5N/A
• Motor constant Bl/√RE 12.8N/√W

Diaphragm

• Effective diameter 255mm
• Effective area SD 510cm²
• Moving mass MMS 245g
• Moving mass (without air load) MMD 237g

Suspensions

• Stiffness KMS 12.7N/mm
• Compliance CMS 79µm/N
• Equivalent volume to the compliance VAS 29L
• Mechanical resistance RMS 10.6N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 317mm
• Baffle cutout diameter 284mm
• Mounting depth 224mm
• Volume occupied by the driver (estimated) 2.7L