Oberton 15NXL700

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.6dB
• Frequency response 45 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 43.4Hz
• Mechanical quality factor QMS 8.45
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.30

Large signal parameters

• Maximum linear excursion xmax 9.3mm
• Air volume displaced at xmax VD 767cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.52mH
• VC Diameter 100mm
• Winding height HVC 23mm
• Winding material Aluminium
• Former material Glass fiber

Magnet

• Flux density B 1.1T
• Force factor Bl 21.7N/A
• Motor constant Bl/√RE 9.43N/√W
• Air gap height HAG 9mm
• Material Neodymium

Diaphragm

• Effective diameter 325mm
• Effective area SD 830cm²
• Moving mass MMS 102g
• Moving mass (without air load) MMD 84.7g
• Material Paper with Glassfiber

Suspensions

• Stiffness KMS 7.56N/mm
• Compliance CMS 132µm/N
• Equivalent volume to the compliance VAS 127L
• Mechanical resistance RMS 3.28N·s/m

Dimensions

• Nominal diameter 15″
• 388mm
• Overall diameter 388mm
• Baffle cutout diameter 355mm
• Overall depth 198mm
• Volume occupied by the driver (estimated) 4.5L
• Net weight 7.9kg
• Frame material Die Cast Aluminium