ESX SXE12D2

2x2Ω

Subwoofer

Nominal diameter12″ / 300 mm
Resonance28 Hz
Q factor0.31
Sensitivity88.2 dB
Linear excursion± 11 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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 88.2dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 2.78
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.31

Large signal parameters

  • Maximum linear excursion xmax 11mm
  • Maximum excursion before damage xlim 22mm
  • Air volume displaced at xmax VD 571cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 4.0Ω
  • Inductance (1kHz, in series) LE 2.6mH
  • VC Diameter 50mm
  • Winding height HVC 30mm
  • Former material Aluminium

Magnet

  • Force factor (in series) Bl 18.6N/A
  • Motor constant Bl/√RE 9.3N/√W
  • Diameter 156mm
  • Height 40mm
  • Weight 3.005kg

Diaphragm

  • Effective diameter 257mm
  • Effective area SD 519cm²
  • Moving mass MMS 170g
  • Moving mass (without air load) MMD 162g
  • Material Non-pressed Paper

Suspensions

  • Stiffness KMS 5.32N/mm
  • Compliance CMS 188µm/N
  • Equivalent volume to the compliance VAS 71.5L
  • Mechanical resistance RMS 10.8N·s/m
  • Surround material Rubber
  • Spider material Single Nomex

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 315mm
  • Baffle cutout diameter 282mm
  • Mounting depth 150mm
  • Volume occupied by the driver (estimated) 3.7L
  • Net weight 8.2kg
  • Frame material Diecast Aluminium

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