• 500 W continuous program power capacity
  • 64 mm (2.5 in) aluminium voice coil
  • 50 – 4000 Hz response
  • 101 dB sensitivity

Specifications

  • Nominal Diameter
    320 mm (12 in)
  • Nominal Impedance
    8 ohm
  • Minimum Impedance
    6.7 ohm
  • Nominal Power Handling (AES)
    250 W
  • Continuous Power Handling
    500 W
  • Sensitivity (1W/1m)
    101 dB
  • Frequency Range
    50 - 4000 Hz
  • Voice Coil Diameter
    65 mm (2.5 in)
  • Winding Material
    Aluminium
  • Former Material
    Glass Fibre
  • Magnet Material
    Ceramic Ring
  • Winding Depth
    12 mm (0.5 in)
  • Magnetic Gap Depth
    7 mm (0.28 in)
  • Flux Density
    1.4 T

Parameters

  • Fs
    51 Hz
  • Re
    5.8 ohm
  • Qes
    0.19
  • Qms
    7.6
  • Qts
    0.18
  • Vas
    101 dm3 (3.56 ft3)
  • Sd
    522 cm2 (80.90 in2)
  • η0
    6.8 %
  • Xmax
    ± 2.8 mm
  • Xvar
    ± 5 mm
  • Mms
    37 g
  • Bl
    19.1 Txm
  • Le
    1.2 mH

Mounting and Shipping info

  • Overall Diameter
    316 mm (12.4 in)
  • Bolt Circle Diameter
    296 mm (11.6 in)
  • Baffle Cutout Diameter
    282 mm (11.1 in)
  • Depth
    135 mm (5.3 in)
  • Flange and Gasket Thickness
    16 mm (0.62 in)
  • Net Weight
    7.6 kg (16.7 lb)
  • Shipping Weight
    8.4 kg (18.7 lb)
  • Shipping Box
    380x380x180 mm (15x15x6.7 in)

Design

  • Surround Shape
    Triple Roll
  • Cone Shape
    Exponential
  • Magnet Type
    Ceramic Ring
  • Spider
    Single
  • Pole Design
    Straight Pole
  • Service kit
    RCK012PE328