Long considered a standard for American clarinetists, the Portnoy Bb clarinet mouthpiece produce a wonderfully focused tone and yet is very free blowing. Great for the symphony or chamber hall, the Portnoy clarinet mouthpiece has been the most recommended step-up mouthpiece since its release.
The BP02 is the original model that made B Portnoy famous. The BP02 has a good tone and provides easy blowing, and has been used in bands and orchestras by professionals for years. If the player has been playing clarinet for a while and wants the best, then the BP02 is probably the better choice. It’s the most popular. The BP01 has a more closed opening and may work better for a smaller bite or beginner clarinetist. The BP03 is more open and better for doublers.