STX W.38.1200.8.MC

Subwoofer

Nominal diameter15″ / 380 mm
Resonance28 Hz
Q factor0.32
Sensitivity92.4 dB
Linear excursion± 8 mm
Program power1200 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 92.4dB
  • Frequency response 30 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 4.17
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.32

Large signal parameters

  • Maximum linear excursion (one way) xmax 8mm
  • Maximum excursion before damage xlim 25mm
  • Air volume displaced at xmax VD 684cm³
  • Power handling P 600W
  • Program power Pmax 1200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.0Ω
  • Inductance (1kHz) LE 2.21mH
  • VC Diameter 100mm
  • Winding material Copper
  • Former material Aluminium

Magnet

  • Force factor Bl 20N/A
  • Motor constant Bl/√RE 8.94N/√W
  • Material Ferrite

Diaphragm

  • Effective diameter 330mm
  • Effective area SD 855cm²
  • Moving mass (including air load) MMS 160g
  • Moving mass MMD 143g
  • Material Modified cellulose

Suspensions

  • Stiffness KMS 5N/mm
  • Compliance CMS 200µm/N
  • Equivalent volume to the compliance VAS 207L
  • Mechanical resistance RMS 6.75N·s/m

Dimensions

  • Nominal diameter 15
  • 380mm
  • Overall diameter 386mm
  • Baffle cutout diameter 350mm
  • Overall depth 168mm
  • Volume occupied by the driver (estimated) 3.9L
  • Net weight 7.5kg
  • Frame material Steel
STX W.38.1200.8.MC SPL
STX W.38.1200.8.MC Dimensions

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