MONACOR SP-312CX

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.4dB
• Frequency response 55 - 22000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 55Hz
• Mechanical quality factor QMS 3.74
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 162cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 1.1mH
• VC Diameter 75mm
• Winding material Polyamide

Magnet

• Force factor Bl 16.9N/A
• Motor constant Bl/√RE 7.14N/√W
• Diameter 169mm
• Weight 1.8kg

Diaphragm

• Effective diameter 262mm
• Effective area SD 540cm²
• Moving mass MMS 56g
• Moving mass (without air load) MMD 47.2g

Suspensions

• Stiffness KMS 6.25N/mm
• Compliance CMS 160µm/N
• Equivalent volume to the compliance VAS 64L
• Mechanical resistance RMS 5.17N·s/m

Dimensions

• Nominal diameter 12″
• 312 x 312mm
• Overall size 312 x 312mm
• Baffle cutout diameter 280mm
• Overall depth 210mm
• Flange thickness 14mm
• Mounting depth 196mm
• Volume occupied by the driver (estimated) 4.1L
• Net weight 8.1kg