Hertz Cento CS 250 S2

Subwoofer

Nominal diameter10″ / 250 mm
Resonance30 Hz
Q factor0.49
Sensitivity84.6 dB
Linear excursion± 12.5 mm
Program Power600 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 84.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 30Hz
  • Mechanical quality factor QMS 9.40
  • Electrical quality factor QES 0.52
  • Total quality factor QTS 0.49

Large signal parameters

  • Maximum linear excursion xmax 12.5mm
  • Maximum excursion before damage xlim 16.5mm
  • Air volume displaced at xmax VD 455cm³
  • Power handling P 300W
  • Program power Pmax 600W

Voice Coil

  • Nominal impedance Z 2Ω
  • DC resistance RE 2.2Ω
  • Inductance (1kHz) LE 2.38mH
  • VC Diameter 35mm

Magnet

  • Force factor Bl 11.5N/A
  • Motor constant Bl/√RE 7.75N/√W
  • Diameter 120mm
  • Height 34mm
  • Material Ferrite

Diaphragm

  • Effective diameter 216mm
  • Effective area SD 364cm²
  • Moving mass MMS 166g
  • Moving mass (without air load) MMD 161g
  • Material Polyproyilene

Suspensions

  • Stiffness KMS 5.88N/mm
  • Compliance CMS 170µm/N
  • Equivalent volume to the compliance VAS 32L
  • Mechanical resistance RMS 3.33N·s/m

Dimensions

  • Nominal diameter 10
  • 250mm
  • Overall diameter 270mm
  • Baffle cutout diameter 231mm
  • Overall depth 132mm
  • Flange thickness 17mm
  • Mounting depth 115mm
  • Volume occupied by the driver (estimated) 1.7L
  • Net weight 3.795kg
Hertz CS 250 S2 Impedance


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