DB Drive WDX8G0.2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 42.1Hz
• Mechanical quality factor QMS 2.65
• Electrical quality factor QES 0.48
• Total quality factor QTS 0.41

Large signal parameters

• Maximum linear excursion xmax 11mm
• Air volume displaced at xmax VD 232cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.6Ω
• Inductance (1kHz, in series, estimated) LE 1.65mH
• VC Diameter 50.8mm

Magnet

• Force factor (in series) Bl 13.7N/A
• Motor constant Bl/√RE 7.22N/√W

Diaphragm

• Effective diameter 164mm
• Effective area SD 211cm²
• Moving mass MMS 94.9g
• Moving mass (without air load) MMD 92.6g
• Material Reinforced paper

Suspensions

• Stiffness KMS 6.62N/mm
• Compliance CMS 151µm/N
• Equivalent volume to the compliance VAS 9.55L
• Mechanical resistance RMS 9.46N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 214mm
• Baffle cutout diameter 231mm
• Mounting depth 118mm
• Volume occupied by the driver (estimated) 0.98L