Skar Audio EVL-18 D2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 31.2Hz
• Mechanical quality factor QMS 5.65
• Electrical quality factor QES 0.44
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 23.5mm
• Air volume displaced at xmax VD 2736cm³
• Power handling P 1250W
• Program power Pmax 2500W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 4.2Ω
• Inductance (1kHz, in series, estimated) LE 5.23mH
• VC Diameter 76.2mm
• Winding material Copper-clad aluminium

Magnet

• Force factor (in series) Bl 40N/A
• Motor constant Bl/√RE 13.8N/√W
• Diameter 188mm

Diaphragm

• Effective diameter 385mm
• Effective area SD 1164cm²
• Moving mass MMS 424g
• Moving mass (without air load) MMD 396g
• Material Pressed Paper

Suspensions

• Stiffness KMS 23.8N/mm
• Compliance CMS 42µm/N
• Equivalent volume to the compliance VAS 81L
• Mechanical resistance RMS 14.7N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 18″
• 465mm
• Overall diameter 465mm
• Baffle cutout diameter 437mm
• Overall depth 296mm
• Flange thickness 36mm
• Mounting depth 260mm
• Volume occupied by the driver (estimated) 11L