Beyma 18LEX1600Fe

Nd
Fe

Subwoofer

Nominal diameter18″ / 460 mm
Resonance34 Hz
Q factor0.38
Sensitivity94.2 dB
Linear excursion± 13 mm
Program Power3200 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 94.2dB
  • Frequency response 35 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 34Hz
  • Mechanical quality factor QMS 7.40
  • Electrical quality factor QES 0.40
  • Total quality factor QTS 0.38

Large signal parameters

  • Maximum linear excursion xmax 13mm
  • Maximum excursion before damage xlim 60mm
  • Air volume displaced at xmax VD 1632cm³
  • Power handling P 1600W
  • Program power Pmax 3200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.3Ω
  • Inductance (1kHz) LE 1.7mH
  • VC Diameter 101.6mm
  • Winding height HVC 32mm

Magnet

  • Force factor Bl 26.9N/A
  • Motor constant Bl/√RE 11.7N/√W
  • Air gap height HAG 15mm

Diaphragm

  • Effective diameter 400mm
  • Effective area SD 1255cm²
  • Moving mass MMS 252g
  • Moving mass (without air load) MMD 222g

Suspensions

  • Stiffness KMS 11.8N/mm
  • Compliance CMS 85µm/N
  • Equivalent volume to the compliance VAS 188L
  • Mechanical resistance RMS 7.4N·s/m

Dimensions

  • Nominal diameter 18
  • 460mm
  • Overall diameter 462mm
  • Baffle cutout diameter 426mm
  • Overall depth 233mm
  • Volume occupied by the driver (estimated) 8.3L
  • Net weight 14.6kg
Beyma 18LEX1600Fe SPL & Impedance
Beyma 18LEX1600Fe Dimensions

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