DB Drive WDX12G1.4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 40.9Hz
• Mechanical quality factor QMS 3.89
• Electrical quality factor QES 0.74
• Total quality factor QTS 0.62

Large signal parameters

• Maximum linear excursion xmax 14mm
• Air volume displaced at xmax VD 744cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.4Ω
• Inductance (1kHz, in series, estimated) LE 6.82mH
• VC Diameter 76.2mm
• Former material Black Aluminum

Magnet

• Force factor (in series) Bl 27.4N/A
• Motor constant Bl/√RE 10.8N/√W

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 336g
• Moving mass (without air load) MMD 327g
• Material Non-Pressed paper

Suspensions

• Stiffness KMS 22.2N/mm
• Compliance CMS 45µm/N
• Equivalent volume to the compliance VAS 18L
• Mechanical resistance RMS 22.2N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 324mm
• Baffle cutout diameter 281mm
• Mounting depth 174mm
• Volume occupied by the driver (estimated) 2.8L
• Frame material Aluminium