MONACOR SPH-100C

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.4dB
• Frequency response 50 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 50Hz
• Mechanical quality factor QMS 3.53
• Electrical quality factor QES 0.50
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 22cm³
• Power handling P 30W
• Program power Pmax 50W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.65mH
• VC Diameter 25.5mm
• Winding material Kapton

Magnet

• Force factor Bl 5.1N/A
• Motor constant Bl/√RE 2.08N/√W
• Diameter 90mm
• Weight 0.3kg

Diaphragm

• Effective diameter 83mm
• Effective area SD 54cm²
• Moving mass MMS 7g
• Moving mass (without air load) MMD 6.7g

Suspensions

• Stiffness KMS 0.69N/mm
• Compliance CMS 1450µm/N
• Equivalent volume to the compliance VAS 6L
• Mechanical resistance RMS 0.62N·s/m

Dimensions

• Nominal diameter 4″
• 106 x 106mm
• Overall size 106 x 106mm
• Baffle cutout diameter 96mm
• Overall depth 50mm
• Flange thickness 0mm
• Mounting depth 50mm
• Volume occupied by the driver (estimated) 0.19L
• Net weight 0.87kg