Ciare CH170Z

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.8dB
• Frequency response 80 - 2500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 93Hz
• Mechanical quality factor QMS 4.25
• Electrical quality factor QES 2.63
• Total quality factor QTS 1.62

Large signal parameters

• Maximum linear excursion xmax 1.3mm
• Air volume displaced at xmax VD 17cm³
• Power handling P 60W
• Program power Pmax 150W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz, estimated) LE 0.35mH
• VC Diameter 25mm
• Former material Aluminum

Magnet

• Force factor Bl 2.73N/A
• Motor constant Bl/√RE 1.46N/√W
• Air gap height HAG 5mm
• Material Ferrite

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 9.51g
• Moving mass (without air load) MMD 8.4g

Suspensions

• Stiffness KMS 3.33N/mm
• Compliance CMS 300µm/N
• Equivalent volume to the compliance VAS 7.5L
• Mechanical resistance RMS 1.31N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6.5″
• 165mm
• Overall diameter 165mm
• Baffle cutout diameter 142mm
• Overall depth 70mm
• Flange thickness 6mm
• Mounting depth 64mm
• Volume occupied by the driver (estimated) 0.34L
• Net weight 0.97kg
• Frame material Steel