Developed with some of the world's top orchestral trombonists, the YSL-882 features a .547" bore, compact wrap F-attachment and a narrow slide for a colorful, brilliant sound. Xeno trombones feature 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 F-atachment 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. The compact wrap F attachment helps to produce a rich, brilliant tone. 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 8 11/16" in diameter. The larger bell in combination with other design improvements, produces a singing, colorful open sound with a projecting solid core. Having a narrow slide results in a faster slide technique allowing the player to get around the horn easier. Eliminating sharp turns in the crook will open the feel and response of the instrument. The rotor paddle is adjustable for optimum comfort. Adding a weight contributes to the trombones foucsed projecting sound. Using a mechanical linkage on a rotor gives it strong, smooth operation. The unique slide lock design on all Yamaha trombones keeps the slide locked in place and keeps it from accidentally falling. Perfectly rounded tubing results in less turbulence and smoother air flow. The new case is a compact contoured shape.