MONACOR SP-250PA

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.4dB
• Frequency response 48 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 48Hz
• Mechanical quality factor QMS 3.80
• Electrical quality factor QES 0.98
• Total quality factor QTS 0.78

Large signal parameters

• Maximum linear excursion xmax 4.3mm
• Air volume displaced at xmax VD 147cm³
• Power handling P 125W
• Program power Pmax 250W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.9Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 39mm
• Winding material Aluminium

Magnet

• Force factor Bl 7.6N/A
• Motor constant Bl/√RE 2.89N/√W
• Diameter 110mm
• Weight 0.71kg

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 27g
• Moving mass (without air load) MMD 22.4g

Suspensions

• Stiffness KMS 2.44N/mm
• Compliance CMS 410µm/N
• Equivalent volume to the compliance VAS 72L
• Mechanical resistance RMS 2.14N·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) 0.96L
• Net weight 1.97kg