Eighteen Sound 15TLW3000 8Ω

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.6dB
• Frequency response 50 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 10.50
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 9mm
• Air volume displaced at xmax VD 793cm³
• Power handling P 1500W
• Program power Pmax 3000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 1.78mH
• VC Diameter 100mm
• Winding material Aluminum

Magnet

• Force factor Bl 23.4N/A
• Motor constant Bl/√RE 9.55N/√W
• Material Ferrite

Diaphragm

• Effective diameter 335mm
• Effective area SD 881cm²
• Moving mass MMS 157g
• Moving mass (without air load) MMD 139g
• Material Water,UV repellent

Suspensions

• Stiffness KMS 11N/mm
• Compliance CMS 91µm/N
• Equivalent volume to the compliance VAS 140L
• Mechanical resistance RMS 3.95N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 245mm
• Flange thickness 12mm
• Mounting depth 233mm
• Volume occupied by the driver (estimated) 7L
• Net weight 12.5kg