RCF LF15X401

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.4dB
• Frequency response 30 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 7.60
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 12mm
• Maximum excursion before damage xlim 25mm
• Air volume displaced at xmax VD 1080cm³
• Power handling P 1500W
• Program power Pmax 3000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 1.3mH
• VC Diameter 102mm
• Winding height HVC 30mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Force factor Bl 26.5N/A
• Motor constant Bl/√RE 11.3N/√W
• Air gap height HAG 15mm

Diaphragm

• Effective diameter 340mm
• Effective area SD 900cm²
• Moving mass MMS 170g
• Moving mass (without air load) MMD 151g

Suspensions

• Stiffness KMS 8.2N/mm
• Compliance CMS 122µm/N
• Equivalent volume to the compliance VAS 146L
• Mechanical resistance RMS 4.78N·s/m
• Spider material with silicon damping

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 161mm
• Volume occupied by the driver 4.3L
• Net weight 12.0kg