STX W.20.80.8.MC

Woofer

Nominal diameter8″ / 200 mm
Resonance32 Hz
Q factor0.68
Sensitivity86.4 dB
Linear excursion± 3.5 mm
Program power80 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 86.4dB
  • Frequency response 30 - 10000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 32Hz
  • Mechanical quality factor QMS 2.95
  • Electrical quality factor QES 0.87
  • Total quality factor QTS 0.68

Large signal parameters

  • Maximum linear excursion (one way) xmax 3.5mm
  • Maximum excursion before damage xlim 10mm
  • Air volume displaced at xmax VD 75cm³
  • Power handling P 60W
  • Program power Pmax 80W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.0Ω
  • Inductance (1kHz) LE 0.4mH
  • VC Diameter 25mm
  • Winding material Drut termospiekalny miedziany
  • Former material Aluminium

Magnet

  • Force factor Bl 4.6N/A
  • Motor constant Bl/√RE 2.06N/√W
  • Material Ferryt

Diaphragm

  • Effective diameter 165mm
  • Effective area SD 214cm²
  • Moving mass (including air load) MMS 18.6g
  • Moving mass MMD 16.3g
  • Material Celuloza modyfikowana

Suspensions

  • Stiffness KMS 0.725N/mm
  • Compliance CMS 1380µm/N
  • Equivalent volume to the compliance VAS 88L
  • Mechanical resistance RMS 1.27N·s/m

Dimensions

  • Nominal diameter 8
  • 200mm
  • Overall diameter 205mm
  • Baffle cutout diameter 179mm
  • Overall depth 72mm
  • Volume occupied by the driver (estimated) 0.33L
  • Net weight 0.7kg
  • Frame material Stal
STX W.20.80.8.MC SPL
STX W.20.80.8.MC Dimensions

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