STX W.38.500.8.MC

Mid Bass

Nominal diameter15″ / 380 mm
Resonance32 Hz
Q factor0.41
Sensitivity94.7 dB
Linear excursion± 5 mm
Program power500 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 94.7dB
  • Frequency response 40 - 4000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 32Hz
  • Mechanical quality factor QMS 3.17
  • Electrical quality factor QES 0.48
  • Total quality factor QTS 0.41

Large signal parameters

  • Maximum linear excursion (one way) xmax 5mm
  • Maximum excursion before damage xlim 15mm
  • Air volume displaced at xmax VD 428cm³
  • Power handling P 250W
  • Program power Pmax 500W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.1Ω
  • Inductance (1kHz) LE 0.74mH
  • VC Diameter 50mm
  • Winding material Copper
  • Former material Aluminum

Magnet

  • Force factor Bl 12.8N/A
  • Motor constant Bl/√RE 5.67N/√W
  • Material Ferrite

Diaphragm

  • Effective diameter 330mm
  • Effective area SD 855cm²
  • Moving mass (including air load) MMS 80g
  • Moving mass MMD 62.7g
  • Material Modified cellulose

Suspensions

  • Stiffness KMS 3.23N/mm
  • Compliance CMS 310µm/N
  • Equivalent volume to the compliance VAS 315L
  • Mechanical resistance RMS 5.07N·s/m

Dimensions

  • Nominal diameter 15
  • 380mm
  • Overall diameter 385mm
  • Baffle cutout diameter 353mm
  • Overall depth 158mm
  • Volume occupied by the driver (estimated) 2.8L
  • Net weight 4.9kg
  • Frame material Steel
STX W.38.500.8.MC SPL
STX W.38.500.8.MC Dimensions

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