Oberton 12HCX

Coaxial

Nominal diameter12″ / 315 mm
Resonance52.6 Hz
Q factor0.33
Sensitivity95.3 dB
Linear excursion± 5.3 mm
Program Power700 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 95.3dB
  • Frequency response 60 - 16000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 52.6Hz
  • Mechanical quality factor QMS 5.75
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.33

Large signal parameters

  • Maximum linear excursion xmax 5.3mm
  • Air volume displaced at xmax VD 270cm³
  • Power handling P 350W
  • Program power Pmax 700W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.6Ω
  • Inductance (1kHz) LE 0.61mH
  • VC Diameter 77mm
  • Winding height HVC 15mm
  • Winding material Aluminium
  • Former material Kapton

Magnet

  • Flux density B 1.1T
  • Force factor Bl 17.8N/A
  • Motor constant Bl/√RE 7.55N/√W
  • Air gap height HAG 9mm
  • Material Neodymium

Diaphragm

  • Effective diameter 256mm
  • Effective area SD 515cm²
  • Moving mass MMS 61g
  • Moving mass (without air load) MMD 52.5g
  • Material Paper with glassfiber

Suspensions

  • Stiffness KMS 6.67N/mm
  • Compliance CMS 150µm/N
  • Equivalent volume to the compliance VAS 55.5L
  • Mechanical resistance RMS 3.51N·s/m

Dimensions

  • Nominal diameter 12
  • 315mm
  • Overall diameter 315mm
  • Baffle cutout diameter 280mm
  • Overall depth 208mm
  • Volume occupied by the driver (estimated) 3.3L
  • Net weight 5.75kg
  • Frame material Die Cast Aluminium
Oberton 12HCX SPL
Oberton 12HCX Dimensions

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