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Great Plains Audio

The home of vintage Altec Lansing loudspeakers

Great Plains Audio
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Home→News & Announcements

News & Announcements

Great Plains Audio JBL Service & Support

Great Plains Audio
Vintage JBL Loudspeaker Repair

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)

Great Plains Audio
Regaussing Woofers

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 →

New N1200-8A crossover

Great Plains Audio
GPA N1200-8A crossover

Great Plains Audio announces the release of our NEW N1200-8A crossover, which can be used to retrofit Altec Model 19 systems. It can also be used with many of our new GPA products in your own 2-way speaker system. … Continue reading →

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Great Plains Audio, The Engine, Pascalite, “The Legacy Lives On”, and the Little Maestro are trademarks of Great Plains Audio, Inc. Altec, Lansing, Altec Lansing, Voice of the Theatre, and Duplex are registered trademarks of Altec Lansing Technologies Corporation. Iconic, Tangerine, and Mantaray are registered trademarks of the Iconic Manufacturing Company, LLC. University Sound is a registered trademark of the Telex Corporation. Symbiotik is a registered trademark of the Altec Corporation. JBL is a trademark of Harman International.

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