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 →
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 →
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, 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 →
The Altec-Lansing Valencia 846B is an American audio classic that inspired the development of the legendary Model 19. It shares many similarities with the newer and larger Model 19. There were two versions of the Valencia: the 846A and 846B. … Continue reading →
The Altec-Lansing M500 Maestro is a largely lost and forgotten loudspeaker, but it is, perhaps, the best the company ever built. It arrived in the final days of Altec-Lansing, Inc., and production was cut short due to the sale of … Continue reading →
Altec Lansing invented the first DUPLEX® Loudspeaker System in 1941 (some sources say 1943 – we’re really not sure). Called the “601”, it was of the field-coil type and included a small-format HF compression driver mounted to a 12″ low … Continue reading →
The Altec-Lansing M500 Maestro is a largely lost and forgotten loudspeaker, but it is, perhaps, the best the company ever built. It arrived in the final days of Altec-Lansing, Inc., and production was cut short due to the sale of … Continue reading →
Perhaps one or the other of you recalls that about two years ago I had two short posts, Björns Altec Stonehenge III replicas as well as the associated. He was lucky to have a beautiful NOS pair of Altec 604-8 … Continue reading →
Looking back, it’s easy to comprehend why I’m a believer in the concept of thought as object – the notion that we bring into our lives that to which we give our attention. That’s how I manifested many of the … Continue reading →
