Micro-Precision Z-Studio 170

4Ω

Mid Bass

Nominal diameter	6.5″ / 170 mm
Resonance	49 Hz
Q factor	0.72
Sensitivity	87.6 dB
Program power	150 W

Micro-Precision Z-Studio 170 Mid Bass

Specifications

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 (including air load) MMS 9.81g
Moving mass 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

Micro-Precision Z-Studio 170 SPL

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