Audio System HX 08 EVO

2x2Ω

Subwoofer

Nominal diameter8″ / 216 mm
Resonance36 Hz
Q factor0.52
Sensitivity82.1 dB
Linear excursion± 5 mm
Program Power350 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 82.1dB
  • Frequency response 30 - 350Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 36Hz
  • Mechanical quality factor QMS 4.46
  • Electrical quality factor QES 0.59
  • Total quality factor QTS 0.52

Large signal parameters

  • Maximum linear excursion (one way) xmax 5mm
  • Air volume displaced at xmax VD 93cm³
  • Power handling P 300W
  • Program power Pmax 350W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 4.2Ω
  • Inductance (1kHz, in series, estimated) LE 1.65mH
  • VC Diameter 42.6mm
  • Former material Kapton

Magnet

  • Force factor (in series) Bl 11N/A
  • Motor constant Bl/√RE 5.37N/√W
  • Diameter 140mm

Diaphragm

  • Effective diameter 153mm
  • Effective area SD 185cm²
  • Moving mass MMS 75g
  • Moving mass (without air load) MMD 73g
  • Material HPPC Paper

Suspensions

  • Stiffness KMS 3.85N/mm
  • Compliance CMS 260µm/N
  • Equivalent volume to the compliance VAS 11.8L
  • Mechanical resistance RMS 3.8N·s/m
  • Surround material Elastomer
  • Spider material Nomex

Dimensions

  • Nominal diameter 8
  • 216mm
  • Overall diameter 216mm
  • Baffle cutout diameter 185mm
  • Overall depth 136mm
  • Flange thickness 18mm
  • Mounting depth 118mm
  • Volume occupied by the driver (estimated) 1.8L
  • Net weight 4.8kg
  • Frame material Die-Cast

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