Oberton 15XB700

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.3dB
• Frequency response 37 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37.2Hz
• Mechanical quality factor QMS 9.20
• 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 1.9mH
• VC Diameter 100mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass fiber

Magnet

• Flux density B 0.98T
• Force factor Bl 25.6N/A
• Motor constant Bl/√RE 11.3N/√W
• Air gap height HAG 14mm
• Material Ferrite

Diaphragm

• Effective diameter 325mm
• Effective area SD 830cm²
• Moving mass MMS 158g
• Moving mass (without air load) MMD 142g
• Material Kevlar paper

Suspensions

• Stiffness KMS 8.7N/mm
• Compliance CMS 115µm/N
• Equivalent volume to the compliance VAS 111L
• Mechanical resistance RMS 4.02N·s/m

Dimensions

• Nominal diameter 15″
• 385mm
• Overall diameter 388mm
• Baffle cutout diameter 355mm
• Overall depth 184mm
• Volume occupied by the driver (estimated) 5.6L
• Net weight 11.95kg
• Frame material Die cast aluminium