Eighteen Sound 10W650 16Ω

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.7dB
• Frequency response 55 - 5700Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 64Hz
• Mechanical quality factor QMS 8.40
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.41

Large signal parameters

• Maximum linear excursion xmax 5.7mm
• Air volume displaced at xmax VD 200cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 10.2Ω
• Inductance (1kHz) LE 1mH
• VC Diameter 65mm

Magnet

• Force factor Bl 19.2N/A
• Motor constant Bl/√RE 6.01N/√W
• Material Ferrite

Diaphragm

• Effective diameter 211mm
• Effective area SD 350cm²
• Moving mass MMS 39g
• Moving mass (without air load) MMD 34.3g
• Material Weather protected

Suspensions

• Stiffness KMS 6.29N/mm
• Compliance CMS 159µm/N
• Equivalent volume to the compliance VAS 27L
• Mechanical resistance RMS 1.87N·s/m

Dimensions

• Nominal diameter 10″
• 260mm
• Overall diameter 260mm
• Baffle cutout diameter 230mm
• Overall depth 121mm
• Flange thickness 9mm
• Mounting depth 112mm
• Volume occupied by the driver (estimated) 1.7L
• Net weight 4.3kg