RCF MB12N405

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96dB
• Frequency response 50 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 52Hz
• Mechanical quality factor QMS 6.00
• Electrical quality factor QES 0.21
• Total quality factor QTS 0.20

Large signal parameters

• Maximum linear excursion xmax 7mm
• Maximum excursion before damage xlim 26.5mm
• Air volume displaced at xmax VD 350cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.0Ω
• Inductance (1kHz) LE 1.2mH
• VC Diameter 102mm
• Winding height HVC 20mm
• Winding material Aluminium
• Former material Glass Fiber

Magnet

• Force factor Bl 23.5N/A
• Motor constant Bl/√RE 10.5N/√W
• Air gap height HAG 12mm

Diaphragm

• Effective diameter 260mm
• Effective area SD 500cm²
• Moving mass MMS 73g
• Moving mass (without air load) MMD 64.7g

Suspensions

• Stiffness KMS 7.58N/mm
• Compliance CMS 132µm/N
• Equivalent volume to the compliance VAS 53L
• Mechanical resistance RMS 3.98N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 320mm
• Baffle cutout diameter 284mm
• Overall depth 133mm
• Volume occupied by the driver 2.9L
• Net weight 7.7kg