DB Drive WDX8G1.4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 55.7Hz
• Mechanical quality factor QMS 6.23
• Electrical quality factor QES 0.76
• Total quality factor QTS 0.68

Large signal parameters

• Maximum linear excursion xmax 12.5mm
• Air volume displaced at xmax VD 268cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.4Ω
• Inductance (1kHz, in series, estimated) LE 4mH
• VC Diameter 50.8mm
• Former material Black Aluminum

Magnet

• Force factor (in series) Bl 21.1N/A
• Motor constant Bl/√RE 8.34N/√W

Diaphragm

• Effective diameter 165mm
• Effective area SD 214cm²
• Moving mass MMS 151g
• Moving mass (without air load) MMD 148g
• Material Non-Pressed paper

Suspensions

• Stiffness KMS 18.5N/mm
• Compliance CMS 54µm/N
• Equivalent volume to the compliance VAS 3.52L
• Mechanical resistance RMS 8.45N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 223mm
• Baffle cutout diameter 183mm
• Mounting depth 135mm
• Volume occupied by the driver (estimated) 1.1L
• Frame material Aluminium