AudioControl EPICX EPICX10 D4

2x2Ω
2x4Ω

Subwoofer

Nominal diameter10″ / 250 mm
Resonance39.9 Hz
Q factor0.59
Sensitivity85.2 dB
Linear excursion± 8.5 mm
Program Power750 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 85.2dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 39.9Hz
  • Mechanical quality factor QMS 6.76
  • Electrical quality factor QES 0.64
  • Total quality factor QTS 0.59

Large signal parameters

  • Maximum linear excursion (one way) xmax 8.5mm
  • Air volume displaced at xmax VD 281cm³
  • Power handling P 500W
  • Program power Pmax 750W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.4Ω
  • Inductance (1kHz, in series) LE 4.68mH
  • VC Diameter 60mm

Magnet

  • Force factor (in series) Bl 19.3N/A
  • Motor constant Bl/√RE 7.62N/√W
  • Diameter 156mm
  • Height 25mm

Diaphragm

  • Effective diameter 205mm
  • Effective area SD 330cm²
  • Moving mass MMS 139g
  • Moving mass (without air load) MMD 135g
  • Material Non-pressed paper

Suspensions

  • Stiffness KMS 10N/mm
  • Compliance CMS 100µm/N
  • Equivalent volume to the compliance VAS 18.7L
  • Mechanical resistance RMS 5.52N·s/m
  • Surround material Composite foam

Dimensions

  • Nominal diameter 10
  • 250mm
  • Overall diameter 269mm
  • Baffle cutout diameter 233mm
  • Overall depth 160mm
  • Flange thickness 24mm
  • Mounting depth 136mm
  • Volume occupied by the driver (estimated) 2.3L
  • Frame material Steel

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