Beyma 12CXA400Fe

Fe
Nd

Coaxial

Nominal diameter12″ / 300 mm
Resonance42 Hz
Q factor0.25
Sensitivity95 dB
Linear excursion± 6 mm
Program Power800 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 95dB
  • Frequency response 40 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 42Hz
  • Mechanical quality factor QMS 7.20
  • Electrical quality factor QES 0.26
  • Total quality factor QTS 0.25

Large signal parameters

  • Maximum linear excursion xmax 6mm
  • Maximum excursion before damage xlim 51mm
  • Air volume displaced at xmax VD 330cm³
  • Power handling P 400W
  • Program power Pmax 800W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.6Ω
  • Inductance (1kHz) LE 1.1mH
  • VC Diameter 101.6mm
  • Winding height HVC 16mm

Magnet

  • Force factor Bl 19.8N/A
  • Motor constant Bl/√RE 7.71N/√W
  • Air gap height HAG 10mm

Diaphragm

  • Effective diameter 265mm
  • Effective area SD 550cm²
  • Moving mass MMS 66g
  • Moving mass (without air load) MMD 57g

Suspensions

  • Stiffness KMS 4.55N/mm
  • Compliance CMS 220µm/N
  • Equivalent volume to the compliance VAS 94L
  • Mechanical resistance RMS 2.4N·s/m

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 312mm
  • Baffle cutout diameter 283mm
  • Overall depth 165mm
  • Volume occupied by the driver (estimated) 4.4L
  • Net weight 11.3kg
Beyma 12CXA400Fe SPL
Beyma 12CXA400Fe SPL & Impedance
Beyma 12CXA400Fe Directivity
Beyma 12CXA400Fe Dimensions

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