Service Archives - Great Plains Audio

Great Plains Audio JBL Service & Support

Posted on July 30, 2017 by GPAJuly 30, 2017

Great Plains Audio is now offering repair services for vintage JBL products. This includes new foam surrounds, cones, and diaphragms. We can also regauss your JBL Alnico magnets. Great Plains Audio uses only the finest available parts for speaker repair, … Continue reading →

Alnico Magnets and Degaussing (Losing their magnetic field)

Posted on July 27, 2017 by GPAJuly 29, 2017

Alnico magnets, by their nature, are easy to degauss (demagnetize) with drive. They will not change with time and their dependence on temperature is really small – maybe 1% at 100 degrees Fahrenheit. Alnico stability and resistance to back EMF … Continue reading →

Great Plains Audio

The home of vintage Altec Lansing loudspeakers

Tag Archives: Service

Great Plains Audio JBL Service & Support

Alnico Magnets and Degaussing (Losing their magnetic field)