Modular Trumpet Mouthpiece Backbore

Commercial Backbore Descriptions  #1 A tight backbore that provides a brilliant sound. #2 A backbore that provides resistance yet provides a lively sound. #2*O A more open version of the #2. #3 Commercial but can be used for a variety of playing  situations. Very even from top to bottom.   #4* A tighter version of the #4.  #4 Open enough to give a full, broad sound. #4*O A more open version of the #4. #5* A tighter version of the #5.  #5 Has power with less resistance to provide a bright tone. #5*O A more open version of the #5.  #6 A medium sized, full sounding backbore. Excellent for a variety of styles Classical Backbore Descriptions  #7 Provides full, warm sound for all around work. #8 A smaller, yet dark, symphonic sound. "Schmidt" style.  #8*O A more open version of the #8 backbore. The upper part of the backbore is altered/opened by introducing a partial '87' shape. #9 A medium sized symphonic backbore that is centered and dark. (a downsized "24" style) #9*O A more open version of the #9, sized right in between the #9 and #10. #10 A bigger, darker symphonic sound. Excellent for orchestral work. (a full "24" style) #11* A slightly tighter version of the #11. #11 Big and free blowing to help in the upper register. Designed for piccolo use. ( "117" Style) #12 Very open and free blowing. Sounds extremely dark. ( "87" Style) Please Note: Standard throat bore on all Modular Backbores is a #27 Modular Backbores are available in two weights, Regular and Medium.