Ciare PW455

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.2dB
• Frequency response 35 - 1200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 26.06
• Electrical quality factor QES 0.24
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 7.5mm
• Air volume displaced at xmax VD 869cm³
• Power handling P 900W
• Program power Pmax 1800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 1.7mH
• VC Diameter 100mm
• Winding height HVC 20mm
• Winding material Sandwich aluminium
• Former material Kapton

Magnet

• Force factor Bl 26.2N/A
• Motor constant Bl/√RE 11.2N/√W
• Air gap height HAG 10mm
• Material Ferrite

Diaphragm

• Effective diameter 384mm
• Effective area SD 1158cm²
• Moving mass MMS 133g
• Moving mass (without air load) MMD 105g
• Material Doped cellulose fiber

Suspensions

• Stiffness KMS 6.67N/mm
• Compliance CMS 150µm/N
• Equivalent volume to the compliance VAS 274L
• Mechanical resistance RMS 1.15N·s/m
• Surround material Nomex Fabric
• Spider material Nomex Fabric

Dimensions

• Nominal diameter 18″
• 450mm
• Overall diameter 460mm
• Baffle cutout diameter 416mm
• Overall depth 190mm
• Flange thickness 17mm
• Mounting depth 173mm
• Volume occupied by the driver (estimated) 6.7L
• Net weight 12.9kg
• Frame material Aluminium