Oberton 15HCX3572

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.4dB
• Frequency response 50 - 16000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 46.3Hz
• Mechanical quality factor QMS 11.62
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 7.3mm
• Air volume displaced at xmax VD 601cm³
• Power handling P 450W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.573mH
• VC Diameter 88mm
• Winding height HVC 19mm
• Winding material Copper Clad Aluminium
• Former material Glass fiber

Magnet

• Flux density B 1.1T
• Force factor Bl 18.8N/A
• Motor constant Bl/√RE 8.17N/√W
• Air gap height HAG 9mm
• Material Neodymium

Diaphragm

• Effective diameter 325mm
• Effective area SD 829cm²
• Moving mass MMS 80.8g
• Moving mass (without air load) MMD 63.9g
• Material Paper

Suspensions

• Stiffness KMS 6.83N/mm
• Compliance CMS 146µm/N
• Equivalent volume to the compliance VAS 141L
• Mechanical resistance RMS 2.02N·s/m

Dimensions

• Nominal diameter 15″
• 388mm
• Overall diameter 388mm
• Baffle cutout diameter 355mm
• Overall depth 220mm
• Volume occupied by the driver (estimated) 4.5L
• Net weight 7.05kg
• Frame material Die Cast Aluminium