find out how to change your sound using your mind, throat, tounge, and air. Yes a new mouthpiece would help, but that's only half of the problem. If you're still playing the horn the same you will never get the sound you want even from a new piece. most of it is in your mind. oh and another thing... your hobbies, Practice sax, transcribe, hear music and read the Saxquest discussion forum. you're 1 i5, go out and flirt, drink, get into trouble, party... don't just limit yourself to music or music related things. Ok maybe you shouldn't take my advice, but seriously you will be a rounder person if you explore differnt things or at least expose yourself to them.

The sound your looking for my friend is not in your horn or in your mouthpiece. It's in your head. Ok, your choice of horn and mouthpiece will help you to get the sound you want a bit easier. But if both are of good quality they won't make a vast difference. I'm afraid there is no quick fix to what your looking for...only time will get you to the sound you want. It's the age old thing....practice practice practice. The sound is there waiting in your head. It'll come out sooner or later. Good luck in your quest my friend.