Eighteen Sound 15TLW3000

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.1dB
• Frequency response 48 - 2200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 9.80
• Electrical quality factor QES 0.41
• Total quality factor QTS 0.39

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 4Ω
• DC resistance RE 2.5Ω
• Inductance (1kHz) LE 1mH
• VC Diameter 100mm

Magnet

• Force factor Bl 18N/A
• Motor constant Bl/√RE 11.4N/√W

Diaphragm

• Effective diameter 335mm
• Effective area SD 881cm²
• Moving mass MMS 177g
• Moving mass (without air load) MMD 159g
• Material Water,UV repellent

Suspensions

• Stiffness KMS 13.5N/mm
• Compliance CMS 74µm/N
• Equivalent volume to the compliance VAS 80L
• Mechanical resistance RMS 4.99N·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