The YTR-4335GS has been designed by the same team that produces our top-of-the-line professional models and shares many of the same qualities, like a rich full tone with accurate intonation, and the ability to either blend with the ensemble or project a solo. It features Monel pistons for quick and reliable valve action, a gold-brass bell for warm rich tone wtih silver-plate finish. The entire inner bore taper-from mouthpiece receiver to the bell-has been scientifically designed for beautiful tone color, comfortable response, and as much sound as you want.