P.Audio GST-181500 Loose Speaker

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  • R 4,999.00
  • Regular price R 5,748.00
Tax included.

Product Description

The P Audio GST18-1500 is an 18 inch (457mm) diameter high performance very low frequency sub woofer transducer. The design utilizes a very large format 5 inch (127mm) nominal voice coil diameter with a very high power copper based coil configured in an inside/outside wind geometry. The large radiating area and deep bass performance insure that the GST18-1500 is capable of very high impact low frequency response. The transducer also offers a double silicone spider design that improves long term mechanical reliability and mechanical linearity. The large format ferrite based magnet structure produces very high conversion efficiency. The ferrite design includes a double stack permanent magnet geometry that increases maximum physical excursion capability. Inside/outside winding geometry assists in coil cooling and improves both transducer power handling and system reliability. The GST18-1500 also features a very long air gap height that improves transducer linearity.

The design features very large diameter silicone impregnated spiders to insure long term linearity. The GST18-1500 also incorporates a proven double spider design that effectively controls off axis displacement of the coil assembly. The silicone impregnated spiders and very high system power handling will insure excellent long term performance. The cone is waterproof to improve reliability in high humidity environments.

The GST18-1500 offers very smooth and controlled amplitude response and has a recommended high frequency limit of 150Hz. The rated low frequency limit of 35Hz will insure excellent low frequency extension and very deep bass response.


Product Specifications

Nominal diameter   457 mm/18 in
  Power rating   1500 W(AES)
  Nominal impedance    8Ω
  Sensitivity    96 dB
  Frequency range    30-1000 Hz
  Chassic type    Cast aluminum
  Magnet type    Ferrite
  Magnet weight    8.9 kg/312.5 oz
  Voice coil diameter    127 mm/5 in
  coil material    Copper Wire
  Former material    Glass fiber
  Cone material   Paper
  Surround material   Cloth
  Suspension   Double
  X-max    9 mm/0.35 in
  Gap depth   14 mm/0.55 in
  Voice coil winding width    32 mm/1.26 in
  Packing dimension WxDxH(mm)    505 x 505 x 300
  Net weight    24.8 kg/54.7 lb
  Shipping weight    26.9 kg/59.3 lb


  • 5" Large Format Voice Coil
  • 6000 Watts Peak Power Handling
  • Active Balanced Cooling
  • Ferrite Magnetics
  • Copper wire Inside/Outside Coil Design
  • Double Spider Suspension
  • Integrated Demodulation Rings
  • Die Cast Aluminum Chassis


  Re   5.6Ω
  Fs   37 Hz
  Mms    285.75 g/10.08 oz
  Mmd    261.09 g/9.21 oz
  Qms    13.15
  Qes    0.52
  Qts    0.50
  Vas   135.51 lt/4.79 ft3
  SD   1225 cm2
  BI    26.87 Tm
  Cms    6.5e-05 m/N
  Rms    5.10 Ns/m
  Le (at 1kHz)    0.72 mH

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