RCF MB12G301

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

Thiele & Small parameters

• Resonance frequency (free air) fS 53Hz
• Mechanical quality factor QMS 4.70
• Electrical quality factor QES 0.28
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 19mm
• Air volume displaced at xmax VD 300cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.7mH
• VC Diameter 76mm
• Winding height HVC 16mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Force factor Bl 17N/A
• Motor constant Bl/√RE 7.32N/√W
• Air gap height HAG 4mm

Diaphragm

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

Suspensions

• Stiffness KMS 5N/mm
• Compliance CMS 200µm/N
• Equivalent volume to the compliance VAS 72L
• Mechanical resistance RMS 3.4N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 320mm
• Baffle cutout diameter 284mm
• Overall depth 146mm
• Volume occupied by the driver 2.6L
• Net weight 7.0kg