DB Drive WDX8 3K

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 43.5Hz
• Mechanical quality factor QMS 4.45
• Electrical quality factor QES 0.56
• Total quality factor QTS 0.50

Large signal parameters

• Maximum linear excursion xmax 12.5mm
• Air volume displaced at xmax VD 266cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.2Ω
• Inductance (1kHz, in series, estimated) LE 3.17mH

Magnet

• Force factor (in series) Bl 17.7N/A
• Motor constant Bl/√RE 6.6N/√W

Diaphragm

• Effective diameter 164mm
• Effective area SD 212cm²
• Moving mass MMS 89.2g
• Moving mass (without air load) MMD 87g

Suspensions

• Stiffness KMS 6.67N/mm
• Compliance CMS 150µm/N
• Equivalent volume to the compliance VAS 9.6L
• Mechanical resistance RMS 5.48N·s/m

Dimensions

• Nominal diameter 8″
• 203mm
• Volume occupied by the driver (estimated) 0.85L