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12plb76%20rear12plb76%20front12plb%20front%203-4
Continuous Power Handling
Voice Coil Diameter
Magnet Material
 
 
 
 

Key Features

  • 700 W continuous program power capacity
  • 76 mm (3 in) aluminium voice coil
  • 50 - 2000 Hz response
  • 98.5 dB sensitivity

Specifications

  • Nominal Diameter320 mm (12.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance6.4 Ω
  • Nominal Power Handling1350 W
  • Continuous Power Handling2700 W
  • Sensitivity399.0 dB
  • Frequency Range50 - 2000 Hz
  • Voice Coil Diameter76 mm (3.0 in)
  • Winding MaterialAluminium
  • Former MaterialGlass Fibre
  • Winding Depth16.0 mm (0.62 in)
  • Magnetic Gap Depth11.0 mm (0.4 in)
  • Flux Density1.05 T

Design

  • Surround ShapeDouble Roll
  • Cone ShapeExponential
  • Magnet MaterialFerrite
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentNone
  • Recommended Enclosure42.0 dm3 (1.48 ft3)
  • Recommended Tuning65 Hz

Parameters4

  • Resonance Frequency50 Hz
  • Re5.0 Ω
  • Qes0.24
  • Qms5.3
  • Qts0.23
  • Vas75.0 dm3 (2.6 ft3)
  • Sd522.0 cm2 (80.9 in2)
  • η₀3.8 %
  • Xmax5.0 mm
  • Xvar7.0 mm
  • Mms51.0 g
  • Bl18.6 Txm
  • Le1.2 mH
  • EBP208 Hz

Mounting And Shipping Info

  • Overall Diameter316 mm (12.4 in)
  • Bolt Circle Diameter296 mm (11.6 in)
  • Baffle Cutout Diameter282.0 mm (11.1 in)
  • Depth136 mm (5.35 in)
  • Flange and Gasket Thickness16 mm (0.62 in)
  • Air Volume Occupied by Driver3.3 dm3 (0.12 ft3)
  • Net Weight7.4 kg (16.4 lb)
  • Shipping Units1
  • Shipping Weight8.3 kg (18.3 lb)
  • Shipping Box360x360x200 mm (14.17x14.17x7.87 in)

Service Kit

  • RCK12PLB768
  • 2 hours test made with continuous pink noise signal (6 dB crest factor) within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.
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