Eighteen Sound 6NTLW2000

16Ω

Woofer

Nominal diameter6.5″ / 152 mm
Resonance86 Hz
Q factor0.35
Sensitivity90.5 dB
Linear excursion± 4.9 mm
Program Power600 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 90.5dB
  • Frequency response 75 - 8000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 86Hz
  • Mechanical quality factor QMS 5.00
  • Electrical quality factor QES 0.38
  • Total quality factor QTS 0.35

Large signal parameters

  • Maximum linear excursion xmax 4.9mm
  • Air volume displaced at xmax VD 65cm³
  • Power handling P 320W
  • Program power Pmax 600W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.1Ω
  • Inductance (1kHz) LE 0.22mH
  • VC Diameter 51mm
  • Winding height HVC 14mm
  • Winding material Aluminum

Magnet

  • Force factor Bl 11.6N/A
  • Motor constant Bl/√RE 5.14N/√W
  • Air gap height HAG 8.5mm
  • Material Neodymium

Diaphragm

  • Effective diameter 130mm
  • Effective area SD 133cm²
  • Moving mass MMS 19g
  • Moving mass (without air load) MMD 17.9g
  • Material Weather protected

Suspensions

  • Stiffness KMS 5.56N/mm
  • Compliance CMS 180µm/N
  • Equivalent volume to the compliance VAS 4.6L
  • Mechanical resistance RMS 2.05N·s/m

Dimensions

  • Nominal diameter 6.5
  • 152mm
  • Overall diameter 162mm
  • Baffle cutout diameter 148mm
  • Overall depth 108mm
  • Flange thickness 14mm
  • Mounting depth 94mm
  • Volume occupied by the driver (estimated) 0.52L
  • Net weight 1.2kg
Eighteen Sound 6NTLW2000 Impedance
Eighteen Sound 6NTLW2000 SPL
Eighteen Sound 6NTLW2000 Dimensions

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