The RT3 Lead Trumpet Backbore opens quickly and takes advantage of the full length of the blank to develop a full sound reminiscent of the big band era – acoustically loud for projecting to the back of the hall without the assistance of a microphone. The resistance is comparable to the Warburton #6 or Reeves #2 backbores. The RT3 has a solid core, but will allow you to go “wide” when the music calls for it.
