ESX VE1522

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 5.25
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.40

Large signal parameters

• Maximum linear excursion xmax 17.5mm
• Maximum excursion before damage xlim 25mm
• Air volume displaced at xmax VD 1477cm³
• Power handling P 4000W
• Program power Pmax 8000W

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
• Former material BASV

Magnet

• Force factor (in series) Bl 25.7N/A
• Motor constant Bl/√RE 12.9N/√W
• Diameter 220mm
• Height 60mm
• Weight 8.505kg

Diaphragm

• Effective diameter 328mm
• Effective area SD 844cm²
• Moving mass MMS 322g
• Moving mass (without air load) MMD 305g
• Material Non-pressed Paper

Suspensions

• Stiffness KMS 15.9N/mm
• Compliance CMS 63µm/N
• Equivalent volume to the compliance VAS 64L
• Mechanical resistance RMS 13.5N·s/m
• Surround material Foam
• Spider material Dual Nomex

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 395mm
• Baffle cutout diameter 358mm
• Mounting depth 260mm
• Volume occupied by the driver (estimated) 12L
• Net weight 25.4kg
• Frame material Diecast Aluminium