Micro-Precision Z-Studio 170

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 49Hz
• Mechanical quality factor QMS 8.40
• Electrical quality factor QES 0.78
• Total quality factor QTS 0.72

Large signal parameters

• Power handling P 70W
• Program power Pmax 150W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 4.0Ω
• Inductance (1kHz) LE 0.31mH
• VC Diameter 25mm

Magnet

• Force factor Bl 3.9N/A
• Motor constant Bl/√RE 1.95N/√W

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 9.81g
• Moving mass (without air load) MMD 8.7g

Suspensions

• Stiffness KMS 0.95N/mm
• Compliance CMS 1053µm/N
• Equivalent volume to the compliance VAS 26.3L
• Mechanical resistance RMS 0.36N·s/m

Dimensions

• Nominal diameter 6.5″
• 170mm
• Overall diameter 170mm
• Baffle cutout diameter 145mm
• Overall depth 79mm
• Flange thickness 7mm
• Mounting depth 72mm
• Volume occupied by the driver (estimated) 0.32L
• Net weight 0.728kg