Oberton 10NM300

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97dB
• Frequency response 100 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 71.4Hz
• Mechanical quality factor QMS 9.15
• Electrical quality factor QES 0.21
• Total quality factor QTS 0.21

Large signal parameters

• Maximum linear excursion xmax 5.3mm
• Air volume displaced at xmax VD 167cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.62mH
• VC Diameter 77mm
• Winding height HVC 15mm
• Winding material Aluminium
• Former material Kapton

Magnet

• Flux density B 1.45T
• Force factor Bl 20.1N/A
• Motor constant Bl/√RE 8.52N/√W
• Air gap height HAG 9mm
• Material Neodymium

Diaphragm

• Effective diameter 201mm
• Effective area SD 317cm²
• Moving mass MMS 34.6g
• Moving mass (without air load) MMD 30.3g
• Material Paper

Suspensions

• Stiffness KMS 6.94N/mm
• Compliance CMS 144µm/N
• Equivalent volume to the compliance VAS 20.6L
• Mechanical resistance RMS 1.7N·s/m

Dimensions

• Nominal diameter 10″
• 262mm
• Overall diameter 263mm
• Baffle cutout diameter 225mm
• Overall depth 148mm
• Volume occupied by the driver (estimated) 2.1L
• Net weight 4.75kg
• Frame material Die cast aluminium