The P Audio GST-181200 is an 18 inch (457mm) diameter high performance very low frequency sub woofer transducer. The design utilizes a large format 4 inch (101.6mm) 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 GST-181200 is capable of very high impact low frequency performance. 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. Inside/outside winding geometry assists in coil cooling and improves both transducer power handling and system reliability. The GST-181200 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 GST-181200 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 GST-181200 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. The GST-181200 is an excellent choice for high output sub woofer system designs where extended deep bass energy is specified. The design also features a very high strength to weight ratio cone design. It is ideally suited to vented enclosure designs and can be coupled with a wide range of top box enclosures. The GST-181200 features an aluminum die cast chassis that includes P Audios Auto Balanced Cooling design that minimizes coil and magnet structure heating, and further improves system performance. The rated continuous power handling is 1200 watts (AES) and offers a peak power handling rating of 4800 watts when sufficient amplifier headroom is available.
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