Oberton 15MB600

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.4dB
• Frequency response 37 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32.4Hz
• Mechanical quality factor QMS 10.94
• Electrical quality factor QES 0.17
• Total quality factor QTS 0.17

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 456cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 1.05mH
• VC Diameter 100mm
• Winding height HVC 15mm
• Winding material Copper
• Former material Glass fiber

Magnet

• Flux density B 1.4T
• Force factor Bl 26.4N/A
• Motor constant Bl/√RE 11.5N/√W
• Air gap height HAG 9mm
• Material Ferrite

Diaphragm

• Effective diameter 325mm
• Effective area SD 830cm²
• Moving mass MMS 113g
• Moving mass (without air load) MMD 96.4g
• Material Kevlar paper

Suspensions

• Stiffness KMS 4.7N/mm
• Compliance CMS 213µm/N
• Equivalent volume to the compliance VAS 204L
• Mechanical resistance RMS 2.11N·s/m

Dimensions

• Nominal diameter 15″
• 385mm
• Overall diameter 388mm
• Baffle cutout diameter 355mm
• Overall depth 179mm
• Volume occupied by the driver (estimated) 5L
• Net weight 10.45kg
• Frame material Die cast aluminium