Re: new saxophone
If youre having problems with the sax, take it to a technician. New saxophones typically arent set up very well, so it might help. If you can, find someone who specializes in saxophones, rather than the guy at the local music store who really specializes oboe, but read a book about saxes 3 years ago.
As long as you keep practicing, the sound quality will improve, simply because youre playing better. Sound quality is produced by the player much more than the sax.