KICKER L7R 45L7R124

2x2Ω
2x4Ω

Subwoofer

Nominal size12x12″ / 300x300 mm
Resonance29.9 Hz
Q factor0.54
Sensitivity87.4 dB
Linear excursion± 17.5 mm
Program Power1200 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 87.4dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 29.9Hz
  • Mechanical quality factor QMS 8.22
  • Electrical quality factor QES 0.58
  • Total quality factor QTS 0.54

Large signal parameters

  • Maximum linear excursion xmax 17.5mm
  • Air volume displaced at xmax VD 1129cm³
  • Power handling P 600W
  • Program power Pmax 1200W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.9Ω
  • Inductance (1kHz, in series) LE 6.83mH

Magnet

  • Force factor (in series) Bl 23.1N/A
  • Motor constant Bl/√RE 8.79N/√W

Diaphragm

  • Effective diameter 287mm
  • Effective area SD 645cm²
  • Moving mass MMS 236g
  • Moving mass (without air load) MMD 226g

Suspensions

  • Stiffness KMS 8.36N/mm
  • Compliance CMS 120µm/N
  • Equivalent volume to the compliance VAS 70.5L
  • Mechanical resistance RMS 5.48N·s/m

Dimensions

  • Nominal size 12 x 12
  • 300 x 300mm
  • Mounting baffle cutout 281 x 281mm
  • Mounting depth 174mm
  • Volume occupied by the driver (estimated) 2.3L
KICKER 45L7R124 Dimensions

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