Ciare CW255

Woofer

Nominal diameter10″ / 250 mm
Resonance50 Hz
Q factor0.21
Sensitivity95.3 dB
Linear excursion± 4.5 mm
Program Power400 W
Discontinued
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 95.3dB
  • Frequency response 45 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 50Hz
  • Mechanical quality factor QMS 2.05
  • Electrical quality factor QES 0.23
  • Total quality factor QTS 0.21

Large signal parameters

  • Maximum linear excursion xmax 4.5mm
  • Air volume displaced at xmax VD 156cm³
  • Power handling P 150W
  • Program power Pmax 400W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.3Ω
  • Inductance (1kHz) LE 0.59mH
  • VC Diameter 50mm
  • Former material Aluminium

Magnet

  • Force factor Bl 12.9N/A
  • Motor constant Bl/√RE 7.1N/√W
  • Air gap height HAG 8mm
  • Material Ferrite

Diaphragm

  • Effective diameter 210mm
  • Effective area SD 347cm²
  • Moving mass MMS 36g
  • Moving mass (without air load) MMD 31.2g

Suspensions

  • Stiffness KMS 3.7N/mm
  • Compliance CMS 270µm/N
  • Equivalent volume to the compliance VAS 46L
  • Mechanical resistance RMS 5.52N·s/m
  • Surround material Nomex

Dimensions

  • Nominal diameter 10
  • 250mm
  • Overall diameter 268mm
  • Baffle cutout diameter 235mm
  • Overall depth 102mm
  • Flange thickness 13mm
  • Mounting depth 89mm
  • Volume occupied by the driver (estimated) 1.3L
  • Frame material Aluminium
Ciare CW255 SPL & Impedance
Ciare CW255 Dimensions

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