EUPHORIA ERFW10D4

2x4Ω

Shallow Subwoofer

Nominal diameter10″ / 272 mm
Resonance32 Hz
Q factor0.61
Sensitivity81.6 dB
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 81.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 32Hz
  • Mechanical quality factor QMS 3.97
  • Electrical quality factor QES 0.72
  • Total quality factor QTS 0.61

Large signal parameters

  • Power handling P 600W
  • Program power Pmax 1200W
  • Peak power Ppeak 1200W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.4Ω
  • Inductance (1kHz, in series, estimated) LE 4.92mH
  • Former material KSV

Magnet

  • Force factor (in series) Bl 19.2N/A
  • Motor constant Bl/√RE 7.59N/√W

Diaphragm

  • Effective diameter 205mm
  • Effective area SD 330cm²
  • Moving mass MMS 206g
  • Moving mass (without air load) MMD 201g
  • Material Injection Molded Polypropylene

Suspensions

  • Stiffness KMS 8.34N/mm
  • Compliance CMS 120µm/N
  • Equivalent volume to the compliance VAS 18.6L
  • Mechanical resistance RMS 10.4N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 10
  • 272mm
  • Overall diameter 272mm
  • Baffle cutout diameter 232mm
  • Mounting depth 94mm
  • Volume occupied by the driver (estimated) 1.8L
  • Frame material Die-Cast

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