Ciare PWA12.75

Woofer

Nominal diameter12″ / 320 mm
Resonance53 Hz
Q factor0.30
Sensitivity94.9 dB
Linear excursion± 5.8 mm
Program Power900 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 94.9dB
  • Frequency response 50 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 53Hz
  • Mechanical quality factor QMS 4.10
  • Electrical quality factor QES 0.32
  • Total quality factor QTS 0.30

Large signal parameters

  • Maximum linear excursion xmax 5.8mm
  • Maximum excursion before damage xlim 30mm
  • Air volume displaced at xmax VD 308cm³
  • Power handling P 450W
  • Program power Pmax 900W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.4Ω
  • Inductance (1kHz) LE 1.06mH
  • VC Diameter 75mm
  • Winding height HVC 16.5mm
  • Winding material Copper
  • Former material Glass Fiber

Magnet

  • Force factor Bl 19.6N/A
  • Motor constant Bl/√RE 8.43N/√W
  • Air gap height HAG 10mm
  • Material Ferrite

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 531cm²
  • Moving mass MMS 70g
  • Moving mass (without air load) MMD 61.3g
  • Material Water repellent

Suspensions

  • Stiffness KMS 7.58N/mm
  • Compliance CMS 132µm/N
  • Equivalent volume to the compliance VAS 52L
  • Mechanical resistance RMS 5.69N·s/m
  • Surround material Triple Roll - Polycotton

Dimensions

  • Nominal diameter 12
  • 320mm
  • Overall diameter 313mm
  • Baffle cutout diameter 282mm
  • Overall depth 136mm
  • Flange thickness 9mm
  • Mounting depth 127mm
  • Volume occupied by the driver (estimated) 2L
  • Net weight 4.2kg
  • Frame material Steel
Ciare PWA12.75 Impedance
Ciare PWA12.75 SPL

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