DB Drive WDX12 3K

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 50.9Hz
• Mechanical quality factor QMS 7.79
• Electrical quality factor QES 0.86
• Total quality factor QTS 0.77

Large signal parameters

• Maximum linear excursion xmax 13.5mm
• Air volume displaced at xmax VD 663cm³
• Power handling P 1500W
• Program power Pmax 3000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.4Ω
• Inductance (1kHz, in series) LE 4.07mH

Magnet

• Force factor (in series) Bl 28.9N/A
• Motor constant Bl/√RE 11.4N/√W

Diaphragm

• Effective diameter 250mm
• Effective area SD 491cm²
• Moving mass MMS 349g
• Moving mass (without air load) MMD 341g

Suspensions

• Stiffness KMS 33.3N/mm
• Compliance CMS 30µm/N
• Equivalent volume to the compliance VAS 10.3L
• Mechanical resistance RMS 14.3N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Volume occupied by the driver (estimated) 2.4L