DB Drive WDX8G2.2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 45.5Hz
• Mechanical quality factor QMS 2.70
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 13mm
• Air volume displaced at xmax VD 281cm³
• Power handling P 750W
• Program power Pmax 1500W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.7Ω
• Inductance (1kHz, in series, estimated) LE 2.4mH
• VC Diameter 63.5mm
• Former material Anodized aluminum

Magnet

• Force factor (in series) Bl 17.7N/A
• Motor constant Bl/√RE 9.19N/√W

Diaphragm

• Effective diameter 166mm
• Effective area SD 216cm²
• Moving mass MMS 160g
• Moving mass (without air load) MMD 157g
• Material Non-Pressed paper

Suspensions

• Stiffness KMS 13.2N/mm
• Compliance CMS 76µm/N
• Equivalent volume to the compliance VAS 5.03L
• Mechanical resistance RMS 16.9N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 223mm
• Baffle cutout diameter 186mm
• Mounting depth 160mm
• Volume occupied by the driver (estimated) 1.1L
• Frame material Aluminium