Skar Audio IVX-15v2 D4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90dB
• Frequency response 30 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32Hz
• Mechanical quality factor QMS 3.40
• Electrical quality factor QES 0.51
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 11mm
• Air volume displaced at xmax VD 829cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.1Ω
• Inductance (1kHz, in series, estimated) LE 4.71mH
• VC Diameter 51mm

Magnet

• Force factor (in series) Bl 20.4N/A
• Motor constant Bl/√RE 7.66N/√W
• Diameter 160mm

Diaphragm

• Effective diameter 310mm
• Effective area SD 754cm²
• Moving mass MMS 165g
• Moving mass (without air load) MMD 150g

Suspensions

• Stiffness KMS 6.67N/mm
• Compliance CMS 150µm/N
• Equivalent volume to the compliance VAS 121L
• Mechanical resistance RMS 9.76N·s/m

Dimensions

• Nominal diameter 15″
• 381mm
• Baffle cutout diameter 356mm
• Mounting depth 170mm
• Volume occupied by the driver 3.7L