MONACOR SPH-5M

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.6dB
• Frequency response 45 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45Hz
• Mechanical quality factor QMS 2.89
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.41

Large signal parameters

• Maximum linear excursion xmax 3.5mm
• Air volume displaced at xmax VD 33cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 0.54mH
• VC Diameter 25mm
• Winding material Aluminium

Magnet

• Force factor Bl 6.42N/A
• Motor constant Bl/√RE 2.56N/√W
• Diameter 100mm
• Weight 0.62kg

Diaphragm

• Effective diameter 110mm
• Effective area SD 95cm²
• Moving mass MMS 11.7g
• Moving mass (without air load) MMD 11g

Suspensions

• Stiffness KMS 0.943N/mm
• Compliance CMS 1060µm/N
• Equivalent volume to the compliance VAS 13.5L
• Mechanical resistance RMS 1.15N·s/m

Dimensions

• Nominal diameter 5.5″
• 150mm
• Overall diameter 150mm
• Baffle cutout diameter 121mm
• Overall depth 75mm
• Flange thickness 5mm
• Mounting depth 70mm
• Volume occupied by the driver (estimated) 0.41L
• Net weight 1.305kg