Bach 190M37X Stradivarius Bb TrumpetThe new 190M37X is one of the most versatile instruments in our history. Orchestral players appreciate the beauty of sound and the agility provided by the . 456" bore size to balance their larger mouthpieces. Commercial players looking for a more compact and focused sound while screaming in the upper register will not find an easier instrument than this. The lightweight nickel inner slides and nickel balusters keep the sound from breaking up, even at