RCF L12L750

Mid Bass

Nominal diameter12″ / 305 mm
Resonance62 Hz
Q factor0.27
Sensitivity96.9 dB
Linear excursion± 4 mm
Program Power700 W
Discontinued
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 96.9dB
  • Frequency response 60 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 62Hz
  • Mechanical quality factor QMS 4.10
  • Electrical quality factor QES 0.29
  • Total quality factor QTS 0.27

Large signal parameters

  • Maximum linear excursion xmax 4mm
  • Maximum excursion before damage xlim 20mm
  • Air volume displaced at xmax VD 200cm³
  • Power handling P 350W
  • Program power Pmax 700W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.2Ω
  • Inductance (1kHz) LE 1.25mH
  • VC Diameter 102mm
  • Winding height HVC 12mm
  • Winding material Aluminium

Magnet

  • Force factor Bl 18.8N/A
  • Motor constant Bl/√RE 8.24N/√W
  • Material Ceramic

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 500cm²
  • Moving mass MMS 50g
  • Moving mass (without air load) MMD 41.7g

Suspensions

  • Stiffness KMS 6.8N/mm
  • Compliance CMS 147µm/N
  • Equivalent volume to the compliance VAS 52L
  • Mechanical resistance RMS 4.75N·s/m
  • Surround material Polycotton

Dimensions

  • Nominal diameter 12
  • 305mm
  • Overall diameter 320mm
  • Baffle cutout diameter 284mm
  • Overall depth 138mm
  • Flange thickness 10mm
  • Mounting depth 128mm
  • Volume occupied by the driver 2.9L
  • Net weight 11.4kg
RCF L12L750 Dimensions

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