accuton AS190-9-251

Woofer

Nominal diameter8″ / 190 mm
Resonance33.4 Hz
Q factor0.44
Sensitivity84.8 dB
Linear excursion± 9 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 84.8dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 33.4Hz
  • Mechanical quality factor QMS 4.75
  • Electrical quality factor QES 0.49
  • Total quality factor QTS 0.44

Large signal parameters

  • Maximum linear excursion xmax 9mm
  • Air volume displaced at xmax VD 182cm³
  • Power handling P 250W
  • Program power Pmax 500W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 8.6Ω
  • Inductance (1kHz) LE 1.05mH
  • VC Diameter 78mm
  • Winding material Copper Clad Aluminium
  • Former material Titanium

Magnet

  • Force factor Bl 13.5N/A
  • Motor constant Bl/√RE 4.6N/√W
  • Diameter 156mm
  • Height 52mm

Diaphragm

  • Effective diameter 160mm
  • Effective area SD 202cm²
  • Moving mass MMS 49.4g
  • Moving mass (without air load) MMD 47.4g

Suspensions

  • Stiffness KMS 2.17N/mm
  • Compliance CMS 460µm/N
  • Equivalent volume to the compliance VAS 26.7L
  • Mechanical resistance RMS 2.18N·s/m

Dimensions

  • Nominal diameter 8
  • 190mm
  • Overall diameter 190mm
  • Baffle cutout diameter 170mm
  • Overall depth 137mm
  • Flange thickness 16mm
  • Mounting depth 121mm
  • Volume occupied by the driver (estimated) 1.2L
accuton AS190-9-251 Impedance
accuton AS190-9-251 SPL
accuton AS190-9-251 Distortion
accuton AS190-9-251 Dimensions

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