Eighteen Sound 10NW650 16Ω

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.6dB
• Frequency response 60 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 51Hz
• Mechanical quality factor QMS 5.00
• Electrical quality factor QES 0.28
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 7mm
• Air volume displaced at xmax VD 242cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 12.2Ω
• Inductance (1kHz) LE 1.55mH
• VC Diameter 65mm
• Winding material Aluminum

Magnet

• Force factor Bl 21N/A
• Motor constant Bl/√RE 6.01N/√W
• Material Neodymium

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 34.1g
• Moving mass (without air load) MMD 29.4g
• Material Weather protected

Suspensions

• Stiffness KMS 3.5N/mm
• Compliance CMS 286µm/N
• Equivalent volume to the compliance VAS 50L
• Mechanical resistance RMS 2.19N·s/m

Dimensions

• Nominal diameter 10″
• 260mm
• Overall diameter 260mm
• Baffle cutout diameter 230mm
• Overall depth 131mm
• Flange thickness 9mm
• Mounting depth 122mm
• Volume occupied by the driver (estimated) 1.3L
• Net weight 2.7kg