MONACOR SPH-176

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.6dB
• Frequency response 39 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 2.27
• Electrical quality factor QES 0.44
• Total quality factor QTS 0.37

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 77cm³
• Power handling P 70W
• Program power Pmax 120W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.6Ω
• Inductance (1kHz) LE 0.75mH
• VC Diameter 25mm
• Winding material Aluminium

Magnet

• Force factor Bl 7.7N/A
• Motor constant Bl/√RE 3N/√W
• Diameter 90mm
• Weight 0.45kg

Diaphragm

• Effective diameter 134mm
• Effective area SD 140cm²
• Moving mass MMS 14g
• Moving mass (without air load) MMD 12.7g

Suspensions

• Stiffness KMS 0.99N/mm
• Compliance CMS 1010µm/N
• Equivalent volume to the compliance VAS 27L
• Mechanical resistance RMS 1.51N·s/m

Dimensions

• Nominal diameter 6.75″
• 175mm
• Overall diameter 175mm
• Baffle cutout diameter 144mm
• Overall depth 75mm
• Flange thickness 7mm
• Mounting depth 68mm
• Volume occupied by the driver (estimated) 0.44L
• Net weight 1.23kg