Eighteen Sound 6ND430

Woofer

Nominal diameter6.5″ / 152 mm
Resonance64 Hz
Q factor0.24
Sensitivity92 dB
Linear excursion± 5 mm
Program Power260 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 92dB
  • Frequency response 63 - 5500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 64Hz
  • Mechanical quality factor QMS 6.50
  • Electrical quality factor QES 0.25
  • Total quality factor QTS 0.24

Large signal parameters

  • Maximum linear excursion xmax 5mm
  • Air volume displaced at xmax VD 67cm³
  • Power handling P 200W
  • Program power Pmax 260W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 2.9Ω
  • Inductance (1kHz) LE 0.17mH
  • VC Diameter 44mm

Magnet

  • Force factor Bl 7.8N/A
  • Motor constant Bl/√RE 4.58N/√W

Diaphragm

  • Effective diameter 130mm
  • Effective area SD 133cm²
  • Moving mass MMS 13.9g
  • Moving mass (without air load) MMD 12.8g

Suspensions

  • Stiffness KMS 2.25N/mm
  • Compliance CMS 445µm/N
  • Equivalent volume to the compliance VAS 12.2L
  • Mechanical resistance RMS 0.86N·s/m

Dimensions

  • Nominal diameter 6.5
  • 152mm
  • Overall diameter 162mm
  • Baffle cutout diameter 148mm
  • Overall depth 73mm
  • Flange thickness 9mm
  • Mounting depth 64mm
  • Volume occupied by the driver (estimated) 0.41L
  • Net weight 1.25kg
Eighteen Sound 6ND430 Impedance
Eighteen Sound 6ND430 SPL
Eighteen Sound 6ND430 Dimensions

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