MONACOR SPH-175

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.8dB
• Frequency response 33 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33Hz
• Mechanical quality factor QMS 1.98
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 27cm³
• Power handling P 60W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 25mm
• Winding material Aluminium

Magnet

• Force factor Bl 6N/A
• Motor constant Bl/√RE 2.51N/√W
• Diameter 84mm
• Weight 0.35kg

Diaphragm

• Effective diameter 132mm
• Effective area SD 137cm²
• Moving mass MMS 12.5g
• Moving mass (without air load) MMD 11.3g

Suspensions

• Stiffness KMS 0.538N/mm
• Compliance CMS 1860µm/N
• Equivalent volume to the compliance VAS 48L
• Mechanical resistance RMS 1.31N·s/m

Dimensions

• Nominal diameter 6.75″
• 177 x 177mm
• Overall size 177 x 177mm
• Baffle cutout diameter 162mm
• Overall depth 70mm
• Flange thickness 1mm
• Mounting depth 69mm
• Volume occupied by the driver (estimated) 0.38L
• Net weight 1.045kg