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                  Frank Geiger

Frank Geiger

Geiger Acoustic Devices

      Inventors and suppliers of unique, movable "Stick-on" mechanical sound amplifying enhancers for banjos, acoustic guitars, mandolins, violins and other acoustic stringed instruments.    
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     A new invention which I've named the "Home Run Amp" works great in a violin and mandolin and is showing wonderful potential in Five String Banjos.  The "Home Run" has wonderful volume and very strong and rich low tones so is showing great promise for guitars and other instruments as well.  After recent tests we still recommend our "Butterfly Sustaining Amp" and "Enhancer (Bass) Amp" combination for four string banjo solos and recording because of the outstanding sustain and sound quality.  

                                                                     Frank Geiger  April 12, 2018