The Schilke S Series with Tunable Bell offer a compact, focused, resonate center to the sound. The S Series features a special #2 ML bell made from yellow brass with a soldered bell bead that helps focus the sound, especially at louder dynamic levels. The tunable bell design allows the tuning slide to be left all the way in or moved only a little to keep the bore relatively free of gaps that may cause a disturbance in the nodel pattern of the sound wave. The Schilke S Series is well suited for use in both a classical or commercial performance and is available in models S22, S32 and S42.