Ciare PWA5.38

Woofer

Nominal diameter5″ / 130 mm
Resonance78 Hz
Q factor0.37
Sensitivity88.7 dB
Linear excursion± 3.9 mm
Program Power250 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 88.7dB
  • Frequency response 70 - 6000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 78Hz
  • Mechanical quality factor QMS 4.10
  • Electrical quality factor QES 0.41
  • Total quality factor QTS 0.37

Large signal parameters

  • Maximum linear excursion xmax 3.9mm
  • Maximum excursion before damage xlim 15mm
  • Air volume displaced at xmax VD 37cm³
  • Power handling P 125W
  • Program power Pmax 250W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.6Ω
  • Inductance (1kHz) LE 0.41mH
  • VC Diameter 38mm
  • Winding height HVC 11mm
  • Winding material Copper Clad Aluminium
  • Former material Glass Fiber

Magnet

  • Force factor Bl 8.9N/A
  • Motor constant Bl/√RE 3.76N/√W
  • Air gap height HAG 6mm
  • Material Ferrite

Diaphragm

  • Effective diameter 110mm
  • Effective area SD 95cm²
  • Moving mass MMS 12g
  • Moving mass (without air load) MMD 11.3g
  • Material Water repellent

Suspensions

  • Stiffness KMS 2.84N/mm
  • Compliance CMS 352µm/N
  • Equivalent volume to the compliance VAS 4.5L
  • Mechanical resistance RMS 1.43N·s/m
  • Surround material Rubber - Single Roll

Dimensions

  • Nominal diameter 5
  • 130mm
  • Overall diameter 153mm
  • Baffle cutout diameter 121mm
  • Overall depth 79mm
  • Flange thickness 5mm
  • Mounting depth 74mm
  • Volume occupied by the driver (estimated) 0.53L
  • Net weight 1.8kg
  • Frame material Steel

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