Thanks for they replies guys, I actually read the manual and figured out how to sort of change the wave form to simulate a saw like brass. And I also set up my amp to have a lot more bass and a low end sound. It doesn't match the OB-Xa's brass but it close enough for me.
Thanks guys!

Hey guys I'm new here and I need some help, I just bought a Casio CZ-3000 today and I can't seem to get the right tones I'm looking for. Now I am a complete noob when it comes to synths, heck I'm a guitar player so I have no knowledge at all when it comes to technical stuff and all that good stuff. ...