Oberton 10NMB200

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.9dB
• Frequency response 70 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 58.7Hz
• Mechanical quality factor QMS 8.92
• Electrical quality factor QES 0.33
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 4.3mm
• Air volume displaced at xmax VD 135cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 0.53mH
• VC Diameter 64mm
• Winding height HVC 12.5mm
• Winding material Aluminium
• Former material Kapton

Magnet

• Flux density B 1.15T
• Force factor Bl 14.1N/A
• Motor constant Bl/√RE 5.83N/√W
• Air gap height HAG 8mm
• Material Neodymium

Diaphragm

• Effective diameter 201mm
• Effective area SD 317cm²
• Moving mass MMS 30.2g
• Moving mass (without air load) MMD 25.9g
• Material Paper

Suspensions

• Stiffness KMS 4.1N/mm
• Compliance CMS 244µm/N
• Equivalent volume to the compliance VAS 34.9L
• Mechanical resistance RMS 1.25N·s/m

Dimensions

• Nominal diameter 10″
• 262mm
• Overall diameter 263mm
• Baffle cutout diameter 225mm
• Overall depth 107mm
• Volume occupied by the driver (estimated) 1.1L
• Net weight 2.36kg
• Frame material Die cast aluminium