Ciare CW321

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.3dB
• Frequency response 40 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45Hz
• Mechanical quality factor QMS 2.54
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.26

Large signal parameters

• Maximum linear excursion xmax 1.4mm
• Air volume displaced at xmax VD 73cm³
• Power handling P 150W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.0Ω
• Inductance (1kHz) LE 0.49mH
• VC Diameter 50mm
• Former material Aluminium

Magnet

• Force factor Bl 12.3N/A
• Motor constant Bl/√RE 7.12N/√W
• Air gap height HAG 8mm
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 537cm²
• Moving mass MMS 50g
• Moving mass (without air load) MMD 41.1g

Suspensions

• Stiffness KMS 4.35N/mm
• Compliance CMS 230µm/N
• Equivalent volume to the compliance VAS 94L
• Mechanical resistance RMS 5.57N·s/m
• Surround material Nomex

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 121mm
• Flange thickness 13mm
• Mounting depth 108mm
• Volume occupied by the driver (estimated) 2L
• Frame material Aluminium