RCF LF12Y308

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.5dB
• Frequency response 40 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 43Hz
• Mechanical quality factor QMS 4.60
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 7mm
• Maximum excursion before damage xlim 18mm
• Air volume displaced at xmax VD 350cm³
• Power handling P 450W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 2mH
• VC Diameter 76mm
• Winding height HVC 19mm
• 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 56g
• Moving mass (without air load) MMD 47.7g

Suspensions

• Stiffness KMS 3.86N/mm
• Compliance CMS 259µm/N
• Equivalent volume to the compliance VAS 97L
• Mechanical resistance RMS 3.29N·s/m

Dimensions

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