Oberton 15NXB700

• Sensitivity (1W, 1m, infinite baffle)SPL1W94.5dB
• Frequency response38 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air)fS38.3Hz
• Mechanical quality factorQMS8.75
• Electrical quality factorQES0.29
• Total quality factorQTS0.28

Large signal parameters

• Maximum linear excursionxmax9mm
• Air volume displaced at xmaxVD747cm³
• Power handlingP1000W
• Program powerPmax2000W

Voice Coil

• Nominal impedanceZ8Ω
• DC resistanceRE5.2Ω
• Inductance (1kHz)LE1.98mH
• VC Diameter100mm
• Winding heightHVC25mm
• Winding materialCopper
• Former materialGlass fiber

Magnet

• Flux densityB1T
• Force factorBl26N/A
• Motor constantBl/√RE11.4N/√W
• Air gap heightHAG14mm
• MaterialNeodymium

Diaphragm

• Effective diameter325mm
• Effective areaSD830cm²
• Moving massMMS157g
• Moving mass (without air load)MMD140g
• MaterialKevlar paper

Suspensions

• StiffnessKMS9.09N/mm
• ComplianceCMS110µm/N
• Equivalent volume to the complianceVAS106L
• Mechanical resistanceRMS4.32N·s/m

Dimensions

• Nominal diameter15″
• 388mm
• Overall diameter388mm
• Baffle cutout diameter355mm
• Overall depth203mm
• Volume occupied by the driver (estimated)4.6L
• Net weight8.1kg
• Frame materialDie Cast Aluminium