RCF LF15N401

Subwoofer

Nominal diameter15″ / 381 mm
Resonance34 Hz
Q factor0.22
Sensitivity95.6 dB
Linear excursion± 9 mm
Program Power1800 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • 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
RCF LF15N401 Impedance
RCF LF15N401 SPL
RCF LF15N401 Dimensions

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4 Ω
15 Subwoofer
fS34 Hz
SD850 cm²
40 - 2200 Hz
QTS0.23
xmax9.5 mm
SPL1W95.5 dB
Bl/√RE11
Pmax2400 W