Spectacular orchestral trombone.Designed with the assistance of top professionals, including Pittsburgh Symphony Principal Trombonist Peter Sullivan, the Yamaha YSL-882O Xeno Series F Attachment Trombone features a .547" bore, fixed gold brass leadpipe, 8-11/16" one-piece hand hammered bell, yellow brass drawn one-piece outer slide, chrome-plated nickel silver drawn inner slide, open F attachment wrap, and lacquer finish.The Xeno features a heavier gauge brass and a thick-walled, one-piece brazed bell which has been hand-hammered thousands of times for the ultimate in a big orchestral sound. The open-wrap F section gives a free-blowing response and the entire instrument has an evenness and balance you have to experience to believe. The tone is flexible with myriad tonal colors, and gives you both powerful projection at fortissimo and subtle control in the most delicate passages.A one-piece bell has an axial (lengthwise) seam, making it a continuous extension of the instrument's material. This results in pure, uniform resonance and superior tone. The bell is additionally larger, 8 2/3" in diameter, which in combination with other design improvements produces a singing, colorful open sound with a projecting solid core. Its open wrap F attachment has an open feel and quick response while the F attachment is engaged.The YSL-8820 also features a narrow slide, which makes it faster, allowing the player to get around the horn easier, and a rounded slide crook. Eliminating sharp turns in the crook opens the feel and response of the instrument. It has an adjustable thumb paddle, a counter balance weight, mechanical rotor linkage, a slide lock, pressure-formed tubing, and a compact contoured case.