DB Drive WDX12 2K

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 44.9Hz
• Mechanical quality factor QMS 4.08
• Electrical quality factor QES 0.67
• Total quality factor QTS 0.58

Large signal parameters

• Maximum linear excursion xmax 12.5mm
• Air volume displaced at xmax VD 644cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.2Ω
• Inductance (1kHz, in series) LE 3.13mH

Magnet

• Force factor (in series) Bl 26.7N/A
• Motor constant Bl/√RE 9.95N/√W

Diaphragm

• Effective diameter 256mm
• Effective area SD 515cm²
• Moving mass MMS 236g
• Moving mass (without air load) MMD 227g

Suspensions

• Stiffness KMS 20N/mm
• Compliance CMS 50µm/N
• Equivalent volume to the compliance VAS 18.8L
• Mechanical resistance RMS 16.3N·s/m

Dimensions

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