The Yamaha YSL-447 GE Bb-Tenor Trombone features a beautiful rich tone, easy playability, and a balanced response. The bore and bell sizes are the same as professional models, and it boasts a handcrafted assembly which you would normally expect only for a top-of-the-line trombone. The 8-1/2" bell is made of gold brass for a warm, rich sound which can fill a concert hall and the intonation is very accurate. The slide action is smooth and the quick response and comfortable playability is consistent in almost any register, at almost any dynamic. The Yamaha YSL-447 GE Bb-Tenor Trombone offers a large orchestral bore for powerful sound projection.
The main features of the Yamaha YSL-447 GE Bb-Tenor Trombone include:
Yamaha YSL-445 GE II Bb-Tenor Trombone 
Yamaha YSL-354 E Bb-Trombone Incl. Case and Mouthpiece