Eighteen Sound 10MB777

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.8dB
• Frequency response 55 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 58Hz
• Mechanical quality factor QMS 5.50
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Air volume displaced at xmax VD 228cm³
• Power handling P 450W
• Program power Pmax 700W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 1.6mH
• VC Diameter 75mm
• Winding material Aluminum

Magnet

• Force factor Bl 18.6N/A
• Motor constant Bl/√RE 7.79N/√W
• Material Ferrite

Diaphragm

• Effective diameter 211mm
• Effective area SD 350cm²
• Moving mass MMS 38g
• Moving mass (without air load) MMD 33.3g

Suspensions

• Stiffness KMS 5.05N/mm
• Compliance CMS 198µm/N
• Equivalent volume to the compliance VAS 33.4L
• Mechanical resistance RMS 2.52N·s/m

Dimensions

• Nominal diameter 10″
• 260mm
• Overall diameter 260mm
• Baffle cutout diameter 232mm
• Overall depth 127mm
• Flange thickness 14mm
• Mounting depth 113mm
• Volume occupied by the driver (estimated) 2.5L
• Net weight 7.2kg