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Great Plains Audio

The home of vintage Altec Lansing loudspeakers

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Tag Archives: Great Plains Audio

Great Plains Audio Model 212-8A

Great Plains Audio Posted on August 7, 2017 by GPAAugust 7, 2017
GPA 212-8A

Great Plains Audio designs and manufactures some of the finest loudspeakers in the world. We continue this tradition of excellence with the release of our newest loudspeaker, the Great Plains Audio Model 212-8A. The extension of usable lower frequency limits … Continue reading →

Posted in Featured GPA Products | Tagged 212-8A, Great Plains Audio

Great Plains Audio 604-8H III Rev. 2 Duplex

Great Plains Audio Posted on August 7, 2017 by GPAAugust 7, 2017
GPA 604-8H-III-Rev-02

The Great Plains Audio 604-8H III Rev. 2 is more than just an evolution in the classic series of 604 Duplexes, it’s an AUDIO REVELATION! For more than fifty years, there has been one studio monitor loudspeaker that has been … Continue reading →

Posted in Featured GPA Products | Tagged 604-8H III, DUPLEX, Great Plains Audio

Great Plains Audio 604-8H-III

Great Plains Audio Posted on July 25, 2017 by Jeff MarkwartJuly 25, 2017
GPA 604-8H-III-Rev-02

The Great Plains Audio 604-8H-III is a much improved version of the vintage ferrite magnet Altec 604 family, and is currently in production. Compared to the early production ferrite Altec 604-16X discussed elsewhere in these pages, the GPA 604 exhibits … Continue reading →

Posted in GPA's Vintage Altec E-Zine, Jeff Markwart's Corner | Tagged 604-8H III, Great Plains Audio, Review

Altec-Lansing 604-8H Crossover Revelations

Great Plains Audio Posted on July 24, 2017 by Jeff MarkwartJuly 24, 2017

Enter the H Model… In early 2004 I acquired a pair of 604-8Hs, the last ALNICO magnet duplex model Altec produced before they switched to ferrite magnets. It was also the first Altec duplex model that combined the Tangerine phase plug with a … Continue reading →

Posted in GPA's Vintage Altec E-Zine, Jeff Markwart's Corner | Tagged 604-8H, Altec-Lansing, Great Plains Audio
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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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