D.A.S. Audio 18LXN

Low frequency

Nominal diameter18″ / 457 mm
Resonance38.5 Hz
Q factor0.45
Sensitivity95.1 dB
Linear excursion± 8 mm
Program Power2000 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 95.1dB
  • Frequency response 25 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 38.5Hz
  • Mechanical quality factor QMS 7.21
  • Electrical quality factor QES 0.48
  • Total quality factor QTS 0.45

Large signal parameters

  • Maximum linear excursion xmax 8mm
  • Air volume displaced at xmax VD 931cm³
  • Power handling P 1000W
  • Program power Pmax 2000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.1Ω
  • Inductance (1kHz) LE 1.82mH
  • VC Diameter 102mm
  • Winding material Copper

Magnet

  • Force factor Bl 21.6N/A
  • Motor constant Bl/√RE 8.76N/√W
  • Material Neodymium

Diaphragm

  • Effective diameter 385mm
  • Effective area SD 1164cm²
  • Moving mass MMS 154g
  • Moving mass (without air load) MMD 126g

Suspensions

  • Stiffness KMS 9.01N/mm
  • Compliance CMS 111µm/N
  • Equivalent volume to the compliance VAS 214L
  • Mechanical resistance RMS 5.16N·s/m

Dimensions

  • Nominal diameter 18
  • 457mm
  • Volume occupied by the driver (estimated) 6.9L
  • Frame material Injected Aluminum
D.A.S. Audio 18LXN SPL


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