Ciare PH320

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.7dB
• Frequency response 45 - 12000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 65Hz
• Mechanical quality factor QMS 3.29
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.38

Large signal parameters

• Maximum linear excursion xmax 1.3mm
• Air volume displaced at xmax VD 66cm³
• Power handling P 120W
• Program power Pmax 220W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 50mm
• Former material Aluminium

Magnet

• Force factor Bl 14N/A
• Motor constant Bl/√RE 5.72N/√W
• Air gap height HAG 8mm
• Material Ferrite

Diaphragm

• Effective diameter 255mm
• Effective area SD 507cm²
• Moving mass MMS 34g
• Moving mass (without air load) MMD 25.7g

Suspensions

• Stiffness KMS 5.88N/mm
• Compliance CMS 170µm/N
• Equivalent volume to the compliance VAS 62L
• Mechanical resistance RMS 4.22N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 315mm
• Baffle cutout diameter 285mm
• Overall depth 121mm
• Flange thickness 13mm
• Mounting depth 108mm
• Volume occupied by the driver (estimated) 2L
• Frame material Aluminium