John Packer JP377 Sterling EEb TubaWe say: The John Packer range of woodwind and brass instruments is part of our portfolio of instruments for AIMS members. This EEb tuba is ideal for any student looking to progress their tuba playing to the very highest level. John Packer say: You will find that the JP377 Sterling is suitable for professional players who are looking for an instrument made to the highest standard, which is easy blowing and has clear and perfect intonation. The JP377