Ciare HS251

2x8Ω

Subwoofer

Nominal diameter10″ / 250 mm
Resonance30 Hz
Q factor0.40
Sensitivity93.1 dB
Linear excursion± 10 mm
Program Power200 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 93.1dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 30Hz
  • Mechanical quality factor QMS 7.21
  • Electrical quality factor QES 0.43
  • Total quality factor QTS 0.40

Large signal parameters

  • Maximum linear excursion (one way) xmax 10mm
  • Air volume displaced at xmax VD 346cm³
  • Power handling P 100W
  • Program power Pmax 200W

Voice Coil

  • Nominal impedance Z 2 x 8Ω
  • DC resistance (in series) RE 11.6Ω
  • Inductance (1kHz, in series) LE 8.06mH
  • VC Diameter 50mm
  • Winding height HVC 24mm
  • Former material Kapton

Magnet

  • Force factor (in series) Bl 39.8N/A
  • Motor constant Bl/√RE 8.27N/√W
  • Air gap height HAG 8mm

Diaphragm

  • Effective diameter 210mm
  • Effective area SD 346cm²
  • Moving mass MMS 79.1g
  • Moving mass (without air load) MMD 74.3g
  • Material Treated Cellulose

Suspensions

  • Stiffness KMS 2.63N/mm
  • Compliance CMS 380µm/N
  • Equivalent volume to the compliance VAS 63.2L
  • Mechanical resistance RMS 2.07N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 10
  • 250mm
  • Overall diameter 268mm
  • Baffle cutout diameter 235mm
  • Overall depth 127mm
  • Flange thickness 5mm
  • Mounting depth 122mm
  • Volume occupied by the driver (estimated) 1.8L
  • Net weight 4.2kg
  • Frame material Aluminium
Ciare HS251 SPL & Impedance
Ciare HS251 Dimensions

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