Ciare PW328

• 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 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