Oberton 15HCX

Coaxial

Nominal diameter15″ / 388 mm
Resonance40.7 Hz
Q factor0.30
Sensitivity98.6 dB
Linear excursion± 7.8 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 98.6dB
  • Frequency response 50 - 16000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 40.7Hz
  • Mechanical quality factor QMS 6.10
  • Electrical quality factor QES 0.32
  • Total quality factor QTS 0.30

Large signal parameters

  • Maximum linear excursion xmax 7.8mm
  • Air volume displaced at xmax VD 643cm³
  • Power handling P 450W
  • Program power Pmax 900W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.1Ω
  • Inductance (1kHz) LE 0.642mH
  • VC Diameter 77mm
  • Winding height HVC 20mm
  • Winding material Copper
  • Former material Kapton

Magnet

  • Flux density B 1.1T
  • Force factor Bl 17.1N/A
  • Motor constant Bl/√RE 7.6N/√W
  • Air gap height HAG 9mm
  • Material Neodymium

Diaphragm

  • Effective diameter 325mm
  • Effective area SD 829cm²
  • Moving mass MMS 71.4g
  • Moving mass (without air load) MMD 54.5g
  • Material Paper with glassfiber

Suspensions

  • Stiffness KMS 4.67N/mm
  • Compliance CMS 214µm/N
  • Equivalent volume to the compliance VAS 206L
  • Mechanical resistance RMS 3N·s/m

Dimensions

  • Nominal diameter 15
  • 388mm
  • Overall diameter 388mm
  • Baffle cutout diameter 355mm
  • Overall depth 220mm
  • Volume occupied by the driver (estimated) 4.3L
  • Net weight 6.6kg
  • Frame material Die Cast Aluminium
Oberton 15HCX SPL
Oberton 15HCX Dimensions

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