RCF LF15N401

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
• Frequency response 35 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 5.80
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 9mm
• Maximum excursion before damage xlim 26mm
• Air volume displaced at xmax VD 810cm³
• Power handling P 900W
• Program power Pmax 1800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 2.5mH
• VC Diameter 102mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Force factor Bl 27.8N/A
• Motor constant Bl/√RE 12.3N/√W
• Air gap height HAG 15mm

Diaphragm

• Effective diameter 340mm
• Effective area SD 900cm²
• Moving mass MMS 158g
• Moving mass (without air load) MMD 139g

Suspensions

• Stiffness KMS 7.46N/mm
• Compliance CMS 134µm/N
• Equivalent volume to the compliance VAS 160L
• Mechanical resistance RMS 5.82N·s/m
• Spider material with silicon damping

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 160mm
• Volume occupied by the driver 3.8L
• Net weight 8.77kg