P.Audio 12NT-76MB

NT
NXFT

Low frequency

Nominal diameter12″ / 305 mm
Resonance50 Hz
Q factor0.36
Sensitivity95.6 dB
Linear excursion± 4.8 mm
Program Power1000 W
P.Audio 12NT-76MB Low frequencyP.Audio 12NT-76MB Low frequencyP.Audio 12NT-76MB Low frequency
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
  • Frequency response 55 - 5000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 50Hz
  • Mechanical quality factor QMS 8.40
  • Electrical quality factor QES 0.37
  • Total quality factor QTS 0.36

Large signal parameters

  • Maximum linear excursion xmax 4.8mm
  • Air volume displaced at xmax VD 252cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.4Ω
  • Inductance (1kHz) LE 0.58mH
  • VC Diameter 76.2mm
  • Winding height HVC 19mm
  • Winding material Flat aluminium wire
  • Former material Kapton

Magnet

  • Flux density B 1.2T
  • Force factor Bl 17.4N/A
  • Motor constant Bl/√RE 6.88N/√W
  • Air gap height HAG 9.5mm
  • Material Neodymium

Diaphragm

  • Effective diameter 261mm
  • Effective area SD 531cm²
  • Moving mass MMS 57g
  • Moving mass (without air load) MMD 48.3g
  • Material Waterproof Paper

Suspensions

  • Stiffness KMS 5.59N/mm
  • Compliance CMS 179µm/N
  • Equivalent volume to the compliance VAS 71.6L
  • Mechanical resistance RMS 2.13N·s/m
  • Surround material Cloth
  • Spider material Cotton

Dimensions

  • Nominal diameter 12″
  • 305mm
  • Overall diameter 314mm
  • Baffle cutout diameter 283mm
  • Overall depth 164mm
  • Flange thickness 15mm
  • Mounting depth 149mm
  • Volume occupied by the driver (estimated) 2.7L
  • Net weight 5.3kg
  • Frame material Aluminium
SPL & Impedance
P.Audio 12NT-76MB SPL & Impedance
P.Audio 12NT-76MB Dimensions
PDF fileDatasheet

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