Skar Audio DDX-10 D4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.3dB

Thiele & Small parameters

• Resonance frequency (free air) fS 36.2Hz
• Mechanical quality factor QMS 4.60
• Electrical quality factor QES 0.59
• Total quality factor QTS 0.53

Large signal parameters

• Maximum linear excursion xmax 15mm
• Air volume displaced at xmax VD 510cm³
• Power handling P 1000W
• Program power Pmax 1500W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 9.1Ω
• Inductance (1kHz, in series, estimated) LE 7.09mH
• VC Diameter 63.5mm
• Winding material Copper

Magnet

• Force factor (in series) Bl 27.1N/A
• Motor constant Bl/√RE 8.98N/√W
• Diameter 193mm

Diaphragm

• Effective diameter 208mm
• Effective area SD 340cm²
• Moving mass MMS 210g
• Moving mass (without air load) MMD 205g
• Material Pressed Paper

Suspensions

• Stiffness KMS 18.9N/mm
• Compliance CMS 53µm/N
• Equivalent volume to the compliance VAS 8.7L
• Mechanical resistance RMS 10.4N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 10″
• 270mm
• Overall diameter 270mm
• Baffle cutout diameter 237mm
• Overall depth 180mm
• Flange thickness 24mm
• Mounting depth 156mm
• Volume occupied by the driver (estimated) 2.7L