Oberton 15CX

Coaxial

Nominal diameter15″ / 388 mm
Resonance38.2 Hz
Q factor0.35
Sensitivity95.6 dB
Linear excursion± 7 mm
Program Power900 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
  • Frequency response 50 - 16000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 38.2Hz
  • Mechanical quality factor QMS 5.61
  • Electrical quality factor QES 0.37
  • Total quality factor QTS 0.35

Large signal parameters

  • Maximum linear excursion xmax 7mm
  • Air volume displaced at xmax VD 580cm³
  • Power handling P 450W
  • Program power Pmax 900W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.2Ω
  • Inductance (1kHz) LE 0.69mH
  • VC Diameter 77mm
  • Winding height HVC 18.5mm
  • Winding material Copper
  • Former material Kapton

Magnet

  • Flux density B 1.15T
  • Force factor Bl 18.5N/A
  • Motor constant Bl/√RE 8.11N/√W
  • Air gap height HAG 9mm
  • Material Ferrite

Diaphragm

  • Effective diameter 325mm
  • Effective area SD 829cm²
  • Moving mass MMS 102g
  • Moving mass (without air load) MMD 85g
  • Material Paper with glassfiber

Suspensions

  • Stiffness KMS 5.88N/mm
  • Compliance CMS 170µm/N
  • Equivalent volume to the compliance VAS 164L
  • Mechanical resistance RMS 4.36N·s/m

Dimensions

  • Nominal diameter 15
  • 388mm
  • Overall diameter 388mm
  • Baffle cutout diameter 355mm
  • Overall depth 214mm
  • Volume occupied by the driver (estimated) 5.8L
  • Net weight 10.9kg
  • Frame material Die Cast Aluminium
Oberton 15CX SPL
Oberton 15CX Dimensions

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