MONACOR SPP-110/4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.4dB
• Frequency response 53 - 8000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 53Hz
• Mechanical quality factor QMS 2.01
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.37

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 11cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 0.3mH
• VC Diameter 25.5mm
• Winding material Aluminium

Magnet

• Force factor Bl 3.3N/A
• Motor constant Bl/√RE 1.82N/√W
• Diameter 80mm
• Weight 0.28kg

Diaphragm

• Effective diameter 84mm
• Effective area SD 55cm²
• Moving mass MMS 4.3g
• Moving mass (without air load) MMD 4g

Suspensions

• Stiffness KMS 0.513N/mm
• Compliance CMS 1950µm/N
• Equivalent volume to the compliance VAS 8L
• Mechanical resistance RMS 0.71N·s/m

Dimensions

• Nominal diameter 4″
• 110 x 110mm
• Overall size 110 x 110mm
• Baffle cutout diameter 100mm
• Overall depth 60mm
• Flange thickness 1mm
• Mounting depth 59mm
• Volume occupied by the driver (estimated) 0.21L
• Net weight 0.809kg