The Shires TBQAlessi was created in close collaboration with Joe Alessi, Principal Trombonist of the New York Philharmonic. Every detail was developed according to his ideas - the result is an instrument that meets the highest orchestral standards. The sound is wide, warm and carries effortlessly through any concert hall. The medium-large bore of 0.547″ (13.89 mm) offers the perfect balance between resistance and fullness. The two-part bell made of light yellow brass with an unsoldered edge and a special annealing process ensures exceptional resonance and variety of colors. ELBBLECH is my heart project - an owner-managed specialist shop for wind and string instruments with its own workshop in Mölln (Schleswig-Holstein). As an active professional trombonist, I know exactly what i.