EUPHORIA XPERT EXFW12NCF

2x4Ω

Shallow Woofer

Nominal diameter12″ / 323 mm
Resonance33.8 Hz
Q factor0.34
Sensitivity85.6 dB
Linear excursion± 10 mm
Program Power1200 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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 85.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 33.8Hz
  • Mechanical quality factor QMS 1.60
  • Electrical quality factor QES 0.43
  • Total quality factor QTS 0.34

Large signal parameters

  • Maximum linear excursion (one way) xmax 10mm
  • Air volume displaced at xmax VD 511cm³
  • Power handling P 500W
  • Program power Pmax 1200W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 7.2Ω
  • Inductance (1kHz, in series, estimated) LE 6.59mH
  • VC Diameter 63.5mm

Magnet

  • Force factor (in series) Bl 30.8N/A
  • Motor constant Bl/√RE 11.5N/√W
  • Material Neodymium

Diaphragm

  • Effective diameter 255mm
  • Effective area SD 511cm²
  • Moving mass MMS 268g
  • Moving mass (without air load) MMD 259g
  • Material Carbon Fiber

Suspensions

  • Stiffness KMS 12.1N/mm
  • Compliance CMS 82.9µm/N
  • Equivalent volume to the compliance VAS 30.7L
  • Mechanical resistance RMS 35.6N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 12
  • 323mm
  • Overall diameter 323mm
  • Baffle cutout diameter 292mm
  • Mounting depth 106mm
  • Volume occupied by the driver (estimated) 2.8L
  • Frame material Die-Cast Aluminium
EUPHORIA EXFW12NCF Dimensions

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