DB Drive WDX12G2.2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 43.6Hz
• Mechanical quality factor QMS 4.71
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.50

Large signal parameters

• Maximum linear excursion xmax 20mm
• Air volume displaced at xmax VD 1013cm³
• Power handling P 1250W
• Program power Pmax 2500W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 4.0Ω
• Inductance (1kHz, in series, estimated) LE 3.52mH
• VC Diameter 76.2mm
• Former material Anodized aluminum

Magnet

• Force factor (in series) Bl 22.3N/A
• Motor constant Bl/√RE 11.2N/√W

Diaphragm

• Effective diameter 254mm
• Effective area SD 507cm²
• Moving mass MMS 252g
• Moving mass (without air load) MMD 244g
• Material Non-Pressed paper

Suspensions

• Stiffness KMS 18.9N/mm
• Compliance CMS 53µm/N
• Equivalent volume to the compliance VAS 19.3L
• Mechanical resistance RMS 14.7N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 329mm
• Baffle cutout diameter 288mm
• Mounting depth 193mm
• Volume occupied by the driver (estimated) 3L
• Frame material Aluminium