Ciare CMI320ND

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 53Hz
• Mechanical quality factor QMS 13.50
• Electrical quality factor QES 0.44
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 274cm³
• Power handling P 220W
• Program power Pmax 450W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 2.8Ω
• Inductance (1kHz) LE 0.6mH
• VC Diameter 50mm
• Winding height HVC 13.5mm
• Former material Glass fiber

Magnet

• Force factor Bl 10.6N/A
• Motor constant Bl/√RE 6.33N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 264mm
• Effective area SD 547cm²
• Moving mass MMS 54g
• Moving mass (without air load) MMD 45g
• Material Doped cellulose fiber

Suspensions

• Stiffness KMS 5.88N/mm
• Compliance CMS 170µm/N
• Equivalent volume to the compliance VAS 70L
• Mechanical resistance RMS 1.33N·s/m
• Surround material Nomex Fabric
• Spider material Nomex Fabric

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 135mm
• Flange thickness 13mm
• Mounting depth 122mm
• Volume occupied by the driver (estimated) 1.5L
• Net weight 2.7kg
• Frame material Aluminium