Oberton 15NXB700

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 38 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38.3Hz
• Mechanical quality factor QMS 8.75
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.28

Large signal parameters

• Maximum linear excursion xmax 9mm
• Air volume displaced at xmax VD 747cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 1.98mH
• VC Diameter 100mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass fiber

Magnet

• Flux density B 1T
• Force factor Bl 26N/A
• Motor constant Bl/√RE 11.4N/√W
• Air gap height HAG 14mm
• Material Neodymium

Diaphragm

• Effective diameter 325mm
• Effective area SD 830cm²
• Moving mass MMS 157g
• Moving mass (without air load) MMD 140g
• Material Kevlar paper

Suspensions

• Stiffness KMS 9.09N/mm
• Compliance CMS 110µm/N
• Equivalent volume to the compliance VAS 106L
• Mechanical resistance RMS 4.32N·s/m

Dimensions

• Nominal diameter 15″
• 388mm
• Overall diameter 388mm
• Baffle cutout diameter 355mm
• Overall depth 203mm
• Volume occupied by the driver (estimated) 4.6L
• Net weight 8.1kg
• Frame material Die Cast Aluminium