RCF LF12X401

• Sensitivity (1W, 1m, infinite baffle)SPL1W93.8dB
• Frequency response45 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air)fS45Hz
• Mechanical quality factorQMS8.00
• Electrical quality factorQES0.28
• Total quality factorQTS0.27

Large signal parameters

• Maximum linear excursionxmax9mm
• Maximum excursion before damagexlim30mm
• Air volume displaced at xmaxVD450cm³
• Power handlingP1000W
• Program powerPmax2000W

Voice Coil

• Nominal impedanceZ8Ω
• DC resistanceRE5.2Ω
• Inductance (1kHz)LE1mH
• VC Diameter102mm
• Winding heightHVC25mm
• Winding materialCopper

Magnet

• Force factorBl26.1N/A
• Motor constantBl/√RE11.4N/√W
• MaterialCeramic

Diaphragm

• Effective diameter260mm
• Effective areaSD500cm²
• Moving massMMS105g
• Moving mass (without air load)MMD96.7g

Suspensions

• StiffnessKMS7.09N/mm
• ComplianceCMS141µm/N
• Equivalent volume to the complianceVAS50L
• Mechanical resistanceRMS3.71N·s/m
• Surround materialPolycotton

Dimensions

• Nominal diameter12″
• 305mm
• Overall diameter320mm
• Baffle cutout diameter284mm
• Overall depth134mm
• Flange thickness15mm
• Mounting depth119mm
• Volume occupied by the driver2.9L
• Net weight11.37kg