GR Technologies    
 

GR Trumpet Mouthpiece Cups

 P.O. Box 96, Dousman WI. 53118    
     
          (705) 715-7060    
 

We do the math...you make the music.

                
   
                       
         

   
                 
      Quality      
             
      Precision      
             
      Massive Core      
     

 

      
      GR Mouthpiece Cups      
             
                 
                       
   
                       
   

 

 

Perfectly blended from rim to cup to throat entrance, through the bore and backbore.  No tooling marks, no scratches, no discontinuities. 

GR Cups are strategically designed to provide optimum response and sound.  Specific alpha angles allow for optimum lip engagement for each individual's needs and physical features. 

Continue through the Cups Menu to choose the perfect cup to suit your musical needs.

From left to right: S Cup, MS, M, MX, L, LX.