STX W.18.180.16.FCX_v2

16Ω

Mid Bass

Nominal diameter8″ / 180 mm
Resonance37 Hz
Q factor0.36
Sensitivity87.6 dB
Linear excursion± 6.3 mm
Program power180 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 87.6dB
  • Frequency response 40 - 10000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 37Hz
  • Mechanical quality factor QMS 4.79
  • Electrical quality factor QES 0.39
  • Total quality factor QTS 0.36

Large signal parameters

  • Maximum linear excursion (one way) xmax 6.3mm
  • Maximum excursion before damage xlim 15mm
  • Air volume displaced at xmax VD 78cm³
  • Power handling P 140W
  • Program power Pmax 180W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 10.2Ω
  • Inductance (1kHz) LE 0.43mH
  • VC Diameter 35mm
  • Winding material Copper
  • Former material Glass Fiber

Magnet

  • Force factor Bl 9.1N/A
  • Motor constant Bl/√RE 2.85N/√W
  • Material Ferrite

Diaphragm

  • Effective diameter 126mm
  • Effective area SD 125cm²
  • Moving mass (including air load) MMS 13.7g
  • Moving mass MMD 12.6g
  • Material Carbon fiber

Suspensions

  • Stiffness KMS 0.741N/mm
  • Compliance CMS 1350µm/N
  • Equivalent volume to the compliance VAS 30L
  • Mechanical resistance RMS 0.66N·s/m

Dimensions

  • Nominal diameter 8
  • 180mm
  • Overall diameter 182mm
  • Baffle cutout diameter 152mm
  • Overall depth 88mm
  • Volume occupied by the driver (estimated) 0.63L
  • Net weight 1.8kg
  • Frame material Aluminium
STX W.18.180.16.FCX_v2 SPL
STX W.18.180.16.FCX_v2 Dimensions

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