STX W.25.200.8.MC

Woofer

Nominal diameter10″ / 250 mm
Resonance28 Hz
Q factor0.36
Sensitivity88.9 dB
Linear excursion± 4.5 mm
Program power200 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 88.9dB
  • Frequency response 40 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 3.27
  • Electrical quality factor QES 0.41
  • Total quality factor QTS 0.36

Large signal parameters

  • Maximum linear excursion (one way) xmax 4.5mm
  • Maximum excursion before damage xlim 15.5mm
  • Air volume displaced at xmax VD 155cm³
  • Power handling P 100W
  • Program power Pmax 200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.3Ω
  • Inductance (1kHz) LE 1.9mH
  • VC Diameter 50mm
  • Winding material Copper
  • Former material Aluminum

Magnet

  • Force factor Bl 11.2N/A
  • Motor constant Bl/√RE 4.86N/√W
  • Material Ferrite

Diaphragm

  • Effective diameter 210mm
  • Effective area SD 345cm²
  • Moving mass (including air load) MMS 54g
  • Moving mass MMD 49.4g
  • Material Modified cellulose

Suspensions

  • Stiffness KMS 1.75N/mm
  • Compliance CMS 570µm/N
  • Equivalent volume to the compliance VAS 95L
  • Mechanical resistance RMS 2.91N·s/m

Dimensions

  • Nominal diameter 10
  • 250mm
  • Overall diameter 255mm
  • Baffle cutout diameter 231mm
  • Overall depth 115mm
  • Volume occupied by the driver (estimated) 0.97L
  • Net weight 1.9kg
  • Frame material Steel
STX W.25.200.8.MC SPL
STX W.25.200.8.MC Dimensions

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