Audio Authority Corp. offers its Enhanced Flight Model 2860A ground power unit . This updated model now provides up to 60-amps continuous, 28 V DC power from an ordinary 120 V AC wall receptacle. This provides ample ground power for most piston, turboprop, and jet aircraft up to 12,500 pounds. The device has been tested with a wide variety of aircraft including Cessna, Piper, and Cirrus piston singles; Meridian, TBM, PC12, Mustang, CJs, Lear 31A, King Air, and Twin Commanders.