Eighteen Sound 10W500

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.9dB
• Frequency response 55 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 53Hz
• Mechanical quality factor QMS 4.22
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 193cm³
• Power handling P 280W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.72mH
• VC Diameter 51mm
• Winding material Copper

Magnet

• Force factor Bl 14.6N/A
• Motor constant Bl/√RE 5.96N/√W
• Material Ferrite

Diaphragm

• Effective diameter 211mm
• Effective area SD 350cm²
• Moving mass MMS 33g
• Moving mass (without air load) MMD 28.3g
• Material Weather protected

Suspensions

• Stiffness KMS 3.66N/mm
• Compliance CMS 273µm/N
• Equivalent volume to the compliance VAS 45.2L
• Mechanical resistance RMS 2.6N·s/m

Dimensions

• Nominal diameter 10″
• 260mm
• Overall diameter 260mm
• Baffle cutout diameter 232mm
• Overall depth 121mm
• Flange thickness 14mm
• Mounting depth 107mm
• Volume occupied by the driver (estimated) 1.8L
• Net weight 4.7kg