DB Drive WDX15 5K

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 47.4Hz
• Mechanical quality factor QMS 8.36
• Electrical quality factor QES 0.86
• Total quality factor QTS 0.78

Large signal parameters

• Maximum linear excursion xmax 16.5mm
• Air volume displaced at xmax VD 1334cm³
• Power handling P 2500W
• Program power Pmax 5000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.4Ω
• Inductance (1kHz, in series) LE 3.51mH

Magnet

• Force factor (in series) Bl 30.6N/A
• Motor constant Bl/√RE 12.1N/√W

Diaphragm

• Effective diameter 321mm
• Effective area SD 808cm²
• Moving mass MMS 424g
• Moving mass (without air load) MMD 408g

Suspensions

• Stiffness KMS 33.3N/mm
• Compliance CMS 30µm/N
• Equivalent volume to the compliance VAS 27.8L
• Mechanical resistance RMS 15.1N·s/m

Dimensions

• Nominal diameter 15″
• 381mm
• Volume occupied by the driver (estimated) 4.3L