MONACOR SP-252E

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.1dB
• Frequency response 42 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 3.13
• Electrical quality factor QES 0.60
• Total quality factor QTS 0.50

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 141cm³
• Power handling P 75W
• Program power Pmax 150W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.8Ω
• Inductance (1kHz) LE 1.1mH
• VC Diameter 35.5mm
• Winding material Aluminium

Magnet

• Force factor Bl 8.5N/A
• Motor constant Bl/√RE 4.39N/√W
• Diameter 125mm
• Weight 0.96kg

Diaphragm

• Effective diameter 212mm
• Effective area SD 353cm²
• Moving mass MMS 43g
• Moving mass (without air load) MMD 38.3g

Suspensions

• Stiffness KMS 3.03N/mm
• Compliance CMS 330µm/N
• Equivalent volume to the compliance VAS 57L
• Mechanical resistance RMS 3.63N·s/m

Dimensions

• Nominal diameter 10″
• 255mm
• Overall diameter 255mm
• Baffle cutout diameter 232mm
• Overall depth 110mm
• Flange thickness 0mm
• Mounting depth 110mm
• Volume occupied by the driver (estimated) 1.1L
• Net weight 2.3kg