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EM18-LB600


The P Audio EM18-LB600 is a high performance 18 inch (457mm) diameter low frequency transducer. The EM18-LB600 features a very large diameter silicone impregnated spider that substantially reduces component stress and improves both linearity and long term reliability. The large diameter suspension elements combine with the unique 3.5” (88.9mm) voice coil diameter and extended winding length to produce high Xmax performance and very tight low frequency sonic character. The EM18-LB600 is an excellent choice for sub woofer applications. The EM18-LB600 features 2400 watt peak power handling (600 watts continuous) and extended bandwidth low frequency response. The unique 3.5 inch voice coil diameter provides an excellent balance between high power handling and controlled moving mass. The result is a high efficiency design that offers high impact low frequency response and high reliability. The 3.5 inch coil design offers less moving mass than a conventional 4 inch design. The reduced moving mass offers superior transient response.

The EM18-LB600 offers a 35Hz to 250Hz useable bandwidth. The performance of the EM18-LB600 is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. Although the woofer is rated to 250Hz, typical applications will limit the high frequency response to 80Hz to 150Hz, depending on the response requirements of the full range or mid/high enclosure. The transducer is ideal for use in sub woofers that use bi-amped configurations.

GENERAL SPECIFICATIONS

  Nominal diameter    457 mm/18 in
  Peak Power    2400 W
  AES Power   600 W
  Nominal Impedance   8Ω
  Sensitivity(1W/1m)   96 dB
  Frequency range   35 - 250 Hz
  Chassic type   Heavy Duty Stamped Steel
  Magnet type   Ferrite
  Magnet weight   2.95 kg / 103.9 oz
  Voice coil diameter   88.9 mm / 3.5 in
  coil material   Round Copper Wire
  Former material   Glass fiber
  Cone material   Paper
  Surround material   Cloth
  Suspension   Silicone Impregnated Spider
  X-max   6.4 mm / 0.25 in
  Gap depth   10 mm / 0.39 in
  Voice coil winding width   22.7 mm / 0.89 in
  Unit weight   10.2 kg / 22.5 lb
  Shipping weight   11.2 kg / 24.7 lb
  Packing dimension WxDxH(mm)    505x505x250 mm 19.9x19.9x9.8 in

FEATURES

  • 3.5” Voice Coil
  • 2400 Watts Peak Power Handling
  • 95 dB Sensitivity
  • Ferrite Magnetics
  • Precision Round Wire Inside/Outside Coil Design
  • Stamped Steel Chassis

SMALL SIGNAL PARAMETERS

  Fs   41 Hz
  Re   5.8 Ohm
  Qms   8.29
  Qes   0.69
  Qts   0.63
  BI   21.29 Tm
  Mms   209.64 g / 7.40 oz
  Mmd   184.98 g / 6.53 oz
  Vas   152.61 lt / 5.39 cu.ft3
  SD   1225 cm2
  Le   0.93 mH
  Cms   7.3e - 05 m/N
  Rms   6.5 Ns/m

EM18-LB600


The P Audio EM18-LB600 is a high performance 18 inch (457mm) diameter low frequency transducer. The EM18-LB600 features a very large diameter silicone impregnated spider that substantially reduces component stress and improves both linearity and long term reliability. The large diameter suspension elements combine with the unique 3.5” (88.9mm) voice coil diameter and extended winding length to produce high Xmax performance and very tight low frequency sonic character. The EM18-LB600 is an excellent choice for sub woofer applications. The EM18-LB600 features 2400 watt peak power handling (600 watts continuous) and extended bandwidth low frequency response. The unique 3.5 inch voice coil diameter provides an excellent balance between high power handling and controlled moving mass. The result is a high efficiency design that offers high impact low frequency response and high reliability. The 3.5 inch coil design offers less moving mass than a conventional 4 inch design. The reduced moving mass offers superior transient response.

The EM18-LB600 offers a 35Hz to 250Hz useable bandwidth. The performance of the EM18-LB600 is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. Although the woofer is rated to 250Hz, typical applications will limit the high frequency response to 80Hz to 150Hz, depending on the response requirements of the full range or mid/high enclosure. The transducer is ideal for use in sub woofers that use bi-amped configurations.