Ciare PW328

Woofer

Nominal diameter12″ / 320 mm
Resonance48 Hz
Q factor0.32
Sensitivity95.5 dB
Linear excursion± 3 mm
Program Power300 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 95.5dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 48Hz
  • Mechanical quality factor QMS 3.08
  • Electrical quality factor QES 0.36
  • Total quality factor QTS 0.32

Large signal parameters

  • Maximum linear excursion (one way) xmax 3mm
  • Air volume displaced at xmax VD 159cm³
  • Power handling P 150W
  • Program power Pmax 300W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.5Ω
  • Inductance (1kHz) LE 0.82mH
  • VC Diameter 50mm
  • Former material Aluminium

Magnet

  • Force factor Bl 15N/A
  • Motor constant Bl/√RE 6.39N/√W
  • Air gap height HAG 8mm
  • Material Ferrite

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 528cm²
  • Moving mass MMS 48.5g
  • Moving mass (without air load) MMD 39.8g

Suspensions

  • Stiffness KMS 4.35N/mm
  • Compliance CMS 230µm/N
  • Equivalent volume to the compliance VAS 91L
  • Mechanical resistance RMS 4.75N·s/m
  • Surround material Nomex

Dimensions

  • Nominal diameter 12
  • 320mm
  • Overall diameter 315mm
  • Baffle cutout diameter 282mm
  • Overall depth 117mm
  • Flange thickness 13mm
  • Mounting depth 104mm
  • Volume occupied by the driver (estimated) 1.9L
  • Frame material Aluminium
Ciare PW328 SPL & Impedance
Ciare PW328 Dimensions

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