Yamaha Mouthpiece Trumpet 7B4

I recently bought this mouthpiece for my C trumpet and for a large, brilliant sound (like I love) on my Bb, and I'm very satisfied.
High notes feel a bit safer and more open and resonant, both when playing forte and at softer dynamics, especially on C trumpet.
Only negative point is, lower notes (below middle C) tend to project a little less on Bb trumpet, but on C trumpet the lowest tones are full, powerful, and brilliant like the high notes.

Very satisfied and outstanding price quality ratio