Eighteen Sound 15W600

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.4dB
• Frequency response 38 - 4400Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38Hz
• Mechanical quality factor QMS 7.20
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Maximum excursion before damage xlim 17.5mm
• Air volume displaced at xmax VD 553cm³
• Power handling P 500W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 1.85mH
• VC Diameter 75mm
• Winding material Copper

Magnet

• Force factor Bl 20.5N/A
• Motor constant Bl/√RE 8.66N/√W
• Material Ferrite

Diaphragm

• Effective diameter 329mm
• Effective area SD 850cm²
• Moving mass MMS 93g
• Moving mass (without air load) MMD 75.7g

Suspensions

• Stiffness KMS 5.59N/mm
• Compliance CMS 179µm/N
• Equivalent volume to the compliance VAS 183L
• Mechanical resistance RMS 3.08N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 387mm
• Baffle cutout diameter 357mm
• Overall depth 169mm
• Flange thickness 20mm
• Mounting depth 149mm
• Volume occupied by the driver (estimated) 4.3L
• Net weight 8.6kg