Ciare HW321

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 27Hz
• Mechanical quality factor QMS 3.04
• Electrical quality factor QES 0.37
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 7.3mm
• Air volume displaced at xmax VD 399cm³
• Power handling P 150W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 50mm
• Winding height HVC 18.5mm
• Former material Aluminum

Magnet

• Force factor Bl 13.2N/A
• Motor constant Bl/√RE 5.52N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 260mm
• Effective area SD 547cm²
• Moving mass MMS 67g
• Moving mass (without air load) MMD 58g
• Material Treated Cellulose

Suspensions

• Stiffness KMS 1.92N/mm
• Compliance CMS 520µm/N
• Equivalent volume to the compliance VAS 205L
• Mechanical resistance RMS 3.74N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 139mm
• Flange thickness 14mm
• Mounting depth 125mm
• Volume occupied by the driver (estimated) 2.3L
• Net weight 4.9kg
• Frame material Aluminium