STX W.27.400.8.MC

Low frequency

Nominal diameter10″ / 270 mm
Resonance27 Hz
Q factor0.33
Sensitivity89.7 dB
Linear excursion± 5.5 mm
Program power400 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 89.7dB
  • Frequency response 30 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 27Hz
  • Mechanical quality factor QMS 2.45
  • Electrical quality factor QES 0.38
  • Total quality factor QTS 0.33

Large signal parameters

  • Maximum linear excursion (one way) xmax 5.5mm
  • Maximum excursion before damage xlim 17.5mm
  • Air volume displaced at xmax VD 190cm³
  • Power handling P 250W
  • Program power Pmax 400W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.2Ω
  • Inductance (1kHz) LE 0.95mH
  • VC Diameter 50mm
  • Winding material Drut termospiekalny miedziany
  • Former material Aluminium

Magnet

  • Force factor Bl 10.4N/A
  • Motor constant Bl/√RE 4.56N/√W
  • Material Ferryt

Diaphragm

  • Effective diameter 210mm
  • Effective area SD 345cm²
  • Moving mass (including air load) MMS 46g
  • Moving mass MMD 41.1g
  • Material Modyfikowana celuloza

Suspensions

  • Stiffness KMS 1.33N/mm
  • Compliance CMS 750µm/N
  • Equivalent volume to the compliance VAS 124L
  • Mechanical resistance RMS 3.19N·s/m

Dimensions

  • Nominal diameter 10
  • 270mm
  • Overall diameter 281mm
  • Baffle cutout diameter 233mm
  • Overall depth 123mm
  • Volume occupied by the driver (estimated) 1.3L
  • Net weight 2.6kg
  • Frame material Stal
STX W.27.400.8.MC SPL
STX W.27.400.8.MC Dimensions

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