Beyma 15XA38Nd

Coaxial

Nominal diameter15″ / 380 mm
Resonance38 Hz
Q factor0.30
Sensitivity97.8 dB
Linear excursion± 6 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 97.8dB
  • Frequency response 40 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 38Hz
  • Mechanical quality factor QMS 6.40
  • Electrical quality factor QES 0.31
  • Total quality factor QTS 0.30

Large signal parameters

  • Maximum linear excursion xmax 6mm
  • Maximum excursion before damage xlim 28mm
  • Air volume displaced at xmax VD 528cm³
  • Power handling P 350W
  • Program power Pmax 700W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.7Ω
  • Inductance (1kHz) LE 1mH
  • VC Diameter 101.6mm
  • Winding height HVC 16mm

Magnet

  • Force factor Bl 20.4N/A
  • Motor constant Bl/√RE 7.88N/√W
  • Air gap height HAG 9mm

Diaphragm

  • Effective diameter 335mm
  • Effective area SD 880cm²
  • Moving mass MMS 82g
  • Moving mass (without air load) MMD 64g

Suspensions

  • Stiffness KMS 4.61N/mm
  • Compliance CMS 217µm/N
  • Equivalent volume to the compliance VAS 238L
  • Mechanical resistance RMS 3N·s/m

Dimensions

  • Nominal diameter 15
  • 380mm
  • Overall diameter 388mm
  • Baffle cutout diameter 352mm
  • Overall depth 182mm
  • Volume occupied by the driver (estimated) 3.9L
  • Net weight 6.8kg
Beyma 15XA38Nd Impedance
Beyma 15XA38Nd SPL
Beyma 15XA38Nd Dimensions

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