I wouldnt start on a 2.0 or 2.5 a 1.5 should be good. But when u play more keepin go up reed strength. When u want lower notes take more mouthpiece and i mean instead of putting ur mouth on a small part of the mouthpiece take more and keep your jaw up. When u put the rred on put it on the the bottom on the mouthpice and dont put it over the black tip (or whatever ur mouthpiece color is) you want to see a lil color above the reed. You might want to get better reeds i think those a goose reeds.(they suck) get a rico 1.5 I use a vandoren 3.0 with myne. And once you get better get a better mouthpiece and maybe a better sax.
Although all this stuff people have been telling you is important, it is probably more important to drop your jaw, loosen your embrochure a bit (just enough to get low notes out), and blow a little more air into the sax. Also, try to place more of the mouthpiece into your mouth rather than play off the tip. If you still can't get it, you should try and get a good teacher and maybe get the sax checked for problems.
Okay, sorry i haven't been on in a while! Practicing, report card, all that boring stuff of the beginning of summer!
I found out that my embouchure was the problem... now that I've corrected that, it's going A LOT better. I haven't gotten a chance to get new reeds yet, but I'm hoping that the next few weeks will take me to the music store.
At this point, it's not so much the lower notes as the higher ones, but i'll find some way to deal with that. I just have to find a fingering chart somewhere. ^^
Thanks for all your guys' help! I could probably use some more tips in the long run if you guys have them... Thanks again!
Thanks a lot everybody. i know it's been a while, so i feel kind of stupid replying. Still, I figured out my problem. I don't really know what it was, but I fixed it somehow. I guess I didn't really figure it out, I just fixed it. ^^