RCF MB12N301

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.6dB
• Frequency response 50 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 54Hz
• Mechanical quality factor QMS 3.10
• Electrical quality factor QES 0.26
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 17mm
• Air volume displaced at xmax VD 300cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 1.8mH
• VC Diameter 76mm
• Winding height HVC 17mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Force factor Bl 19N/A
• Motor constant Bl/√RE 7.89N/√W
• Air gap height HAG 10mm

Diaphragm

• Effective diameter 260mm
• Effective area SD 500cm²
• Moving mass MMS 48g
• Moving mass (without air load) MMD 39.7g

Suspensions

• Stiffness KMS 5.5N/mm
• Compliance CMS 182µm/N
• Equivalent volume to the compliance VAS 71L
• Mechanical resistance RMS 5.25N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 320mm
• Baffle cutout diameter 288mm
• Overall depth 146mm
• Volume occupied by the driver 2.2L
• Net weight 3.4kg