PHL audio 4071NdS-19

NdS-19
NdU-191

Coaxial

Nominal diameter12″ / 300 mm
Resonance46 Hz
Q factor0.12
Sensitivity97.9 dB
Linear excursion± 6 mm
Program Power1000 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 97.9dB
  • Frequency response 50 - 2500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 46Hz
  • Mechanical quality factor QMS 4.99
  • Electrical quality factor QES 0.12
  • Total quality factor QTS 0.12

Large signal parameters

  • Maximum linear excursion xmax 6mm
  • Maximum excursion before damage xlim 16mm
  • Air volume displaced at xmax VD 296cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.0Ω
  • Inductance (1kHz) LE 1.29mH
  • VC Diameter 77mm
  • Winding height HVC 17.5mm

Magnet

  • Force factor Bl 28.6N/A
  • Motor constant Bl/√RE 12.8N/√W
  • Air gap height HAG 12mm
  • Diameter 138mm
  • Material Neodymium

Diaphragm

  • Effective diameter 251mm
  • Effective area SD 493cm²
  • Moving mass MMS 69g
  • Moving mass (without air load) MMD 61.1g

Suspensions

  • Stiffness KMS 5.88N/mm
  • Compliance CMS 170µm/N
  • Equivalent volume to the compliance VAS 59L
  • Mechanical resistance RMS 4N·s/m

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 307mm
  • Baffle cutout diameter 282mm
  • Overall depth 162mm
  • Flange thickness 13mm
  • Mounting depth 149mm
  • Volume occupied by the driver 2.1L
  • Net weight 6.2kg
PHL audio 4071NdS-19 Dimensions

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