EASTECH FSD122000-0400

Subwoofer

Nominal size4x6″ / 96x153 mm
Resonance60.6 Hz
Q factor0.40
Sensitivity85.6 dB
Linear excursion± 2.3 mm
Program Power40 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 60.6Hz
  • Mechanical quality factor QMS 2.51
  • Electrical quality factor QES 0.47
  • Total quality factor QTS 0.40

Large signal parameters

  • Maximum linear excursion xmax 2.3mm
  • Air volume displaced at xmax VD 18cm³
  • Power handling P 20W
  • Program power Pmax 40W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 1.9Ω
  • Inductance (1kHz) LE 0.27mH
  • VC Diameter 25.4mm
  • Winding height HVC 9.5mm
  • Winding material Dual PESVW
  • Former material Kapton

Magnet

  • Force factor Bl 4.26N/A
  • Motor constant Bl/√RE 3.12N/√W
  • Air gap height HAG 5mm
  • Material Ferrite

Diaphragm

  • Effective diameter 102mm
  • Effective area SD 81cm²
  • Moving mass MMS 12g
  • Moving mass (without air load) MMD 11.6g
  • Material Paper

Suspensions

  • Stiffness KMS 1.74N/mm
  • Compliance CMS 574µm/N
  • Equivalent volume to the compliance VAS 5.84L
  • Mechanical resistance RMS 1.83N·s/m
  • Surround material Rubber

Dimensions

  • Nominal size 4 x 6
  • 96 x 153mm
  • Volume occupied by the driver (estimated) 0.24L
  • Net weight 0.635kg
  • Frame material Steel
EASTECH FSD122000-0400 SPL & Impedance
EASTECH FSD122000-0400 Dimensions

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