MONACOR SP-4/60PRO

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87dB
• Frequency response 92 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 92Hz
• Mechanical quality factor QMS 5.35
• Electrical quality factor QES 0.67
• Total quality factor QTS 0.60

Large signal parameters

• Maximum linear excursion xmax 2.3mm
• Air volume displaced at xmax VD 16cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.8Ω
• Inductance (1kHz) LE 0.3mH
• VC Diameter 25mm
• Winding material Kapton

Magnet

• Force factor Bl 5.85N/A
• Motor constant Bl/√RE 2.25N/√W
• Diameter 86mm
• Weight 0.37kg

Diaphragm

• Effective diameter 93mm
• Effective area SD 68cm²
• Moving mass MMS 6.3g
• Moving mass (without air load) MMD 5.9g

Suspensions

• Stiffness KMS 2.13N/mm
• Compliance CMS 470µm/N
• Equivalent volume to the compliance VAS 3.04L
• Mechanical resistance RMS 0.68N·s/m

Dimensions

• Nominal diameter 4″
• 113 x 113mm
• Overall size 113 x 113mm
• Baffle cutout diameter 103mm
• Overall depth 63mm
• Flange thickness 5mm
• Mounting depth 58mm
• Volume occupied by the driver (estimated) 0.24L
• Net weight 0.9kg