Ciare PA087

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.8dB

Thiele & Small parameters

• Resonance frequency (free air) fS 74Hz
• Mechanical quality factor QMS 5.13
• Electrical quality factor QES 0.71
• Total quality factor QTS 0.62

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 6.6cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.27mH
• VC Diameter 25mm
• Former material Kapton

Magnet

• Force factor Bl 3.45N/A
• Motor constant Bl/√RE 1.46N/√W
• Air gap height HAG 5mm

Diaphragm

• Effective diameter 65mm
• Effective area SD 33cm²
• Moving mass MMS 3.22g
• Moving mass (without air load) MMD 3.1g
• Material Cellulose

Suspensions

• Stiffness KMS 0.704N/mm
• Compliance CMS 1420µm/N
• Equivalent volume to the compliance VAS 2.2L
• Mechanical resistance RMS 0.29N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 3.5″
• 87mm
• Overall diameter 87mm
• Baffle cutout diameter 77mm
• Overall depth 50mm
• Flange thickness 5mm
• Mounting depth 45mm
• Volume occupied by the driver (estimated) 0.14L
• Net weight 0.6kg
• Frame material Steel