Great Plains Audio came into existence after the close of Altec Lansing. Our purpose was to help sound contractors, institutions, churches, and end users of Altec Lansing professional loudspeaker products keep them alive and well. Contrary to what some salesman from the local sound company or music store down the street might tell you, there is no reason to throw away those great Altec or University loudspeakers!!!!  Save yourself a lot of money and years of kicking yourself and saying "These new speakers just don't sound as good as our old Altec's did!" We can rebuild them for a
fraction of replacement cost so they can continue to serve you for many more years to come!
    We repair almost every type of Altec loudspeaker ever made, including their world-famous -

288 & 299-series of High Frequency Compression Drivers
      Altec 288B
     © Altec Corporation

    * 290-series of High Frequency Compression Drivers
    * 800 & 900-series of High Frequency Compression Drivers

  515-series of Low Frequency Loudspeakers
        Altec 515
      © Altec Corporation

PLUS - ALTEC'S -

    * 416-series of Low Frequency Loudspeakers
    * Home and Car Audio Loudspeakers manufactured prior to 1983.

    Whether you have an original Altec 288 high frequency compression driver made in the late 1940's, any of the newer large and small-format compression drivers, one of Altec's many outstanding low frequency loudspeakers, or even an old University outdoor paging horn, we can probably repair it!

    In addition to most all of the Altec woofer replacement kits, we are now able to produce diaphragms for the vast majority of professional high frequency compression drivers that Altec built during it's entire history. Don't be fooled by imitators - NO ONE ELSE can manufacture diaphragms for your Altec high frequency compression drivers that perform exactly as the originals did! Our team of skilled craftsmen were all long-time Altec and University employees, so you don't have to worry about whether or not the parts we manufacture or the repairs we make will be right - THEY WILL! What's more, we use the actual materials and processes Altec used to manufacture their products to manufacture ours. We even wind our own voice coils to exact Altec specifications IN HOUSE! This combination results in replacement parts for your incomparable Altec Lansing high frequency compression driver that are SUPERIOR TO ALL OTHERS!

    If you own an Altec Lansing or University Sound professional loudspeaker product manufactured
  prior to 1999, we are the ONLY service center capable of repairing your unit properly and bringing it's performance back up to factory specifications!

Our Standard Service Includes Features Other Companies Consider "Special Order" Items, Such As:

Remagnetizing old high and low frequency loudspeakers. We test and remagnetize all Alnico loudspeakers sent to us for repair that have lost any of their original magnetic strength.

Full IN-HOUSE manufacturing of low and high frequency diaphragm/voice coil assemblies.

We repair Altec Lansing's Musical Instrument Loudspeakers, such as the 417, 418, 421-series, & 918-series loudspeakers, all with new parts that exactly meet Altec specifications. We know of no one else in the industry that is providing this service.

Other Special Services That Are Available - 

All of our high frequency diaphragms are manufactured in-house using the modern mounting ring and push-on terminal assemblies developed by Altec Lansing in the middle 1980's. For those customers wishing to retain the vintage appearance to their products, original style mounting rings that utilize screw-type terminals are available for an additional sum by special order.

Low and High frequency loudspeaker rebuild kits are available to qualified reconing centers. Call for current availability and pricing.

Full restoration for the original Altec 515 low frequency loudspeaker is available. This includes a full paper cone, phenolic spider, and total remagnetization. We also provide this service for the original Altec 604 DUPLEX® loudspeakers. Please specify this option when sending in your loudspeaker.

Full restoration for the Altec 411 low frequency loudspeaker is also available. This includes an entirely new foam surround, cone, suspension, voice coil, and complete testing before it leaves our facility.

GREAT PLAINS AUDIO ™
  7127 NORTHWEST THIRD ST.
  OKLAHOMA CITY, OKLAHOMA  73127
(405) 789-0221

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