Hi all after ive made my track mastered it as best i can and export it it sound worst then in did in sonar platinum! is there a reason for this? also when exporting should i be recording in 16bit 24bit ect and 44,000hz 48,000hz ect and is it better to just go to a pro studio and get them to eq and master my song! thanks

This is process that takes years to perfect but you should be hearing a good replica of what you export.
I record everything in 24 bit / 44.1. I export my mixes in 24 bit and master it to 24 bit as well but from that master make 16 bit copy's for CD quality. I use 24 bit because of its extended dynamic range. I have yet to see the benefits in 96 or higher, I know there are but not in my world so I stick to 44.1.
 
It all starts with your master bus. leave it at 0DB. If you need to make room for headroom, move track faders not the master bus. Make certain and absolutely POSITIVE your hardware bus is set to 0db. don't start messing with that or your asking for trouble. (the hardware bus is often hidden all the way to the right hand side in the bus pane/console view).
 
It took me years to get my mixes in sonar to sound the same on multiple sources (Car radios, stereo systems, exc) but it all came down to basics, things I over looked. signal flow and proper gain staging.

To add to this:
On your mix downs, leave some headroom for mastering. I typically leave 4-6 but you can go as much as 8 in quiet spots. Master should be pretty close to 0 db leaving some headroom (around 0.3 / 0.5 is what I leave) if its an MP3, leave 2 db's of headroom. Peak is not the only important part of a good Master but also RMS. In a typical pop song this should be some where around 10 RMS. We could dissect the P out of this as im sure some might want to but I suggest 10 as an even.
 
With doing detail work (what I call mixing and mastering) there are tools needed. Meters. For peak and RMS.
I also use a VU meter during mixing but we'll save that for another story. Brainworx makes a great meter. and its my meter of choice because it also supports the K system
Brainworx BX meter
http://www.brainworx-music.de/en/plugins/bx_meter

coltpeacemaker
Hi all after ive made my track mastered it as best i can and export it it sound worst then in did in sonar platinum! is there a reason for this?

 
There is no technical reason for this to happen, so it's likely pilot error of some kind. See Chuck's post above for potential issues that could impact your export.
 

is it better to just go to a pro studio and get them to eq and master my song!

Yes, if you're not happy with your mastering.

Yes +1 to what Craig said (go to a pro studio), sometimes its not worth the head ache.
You will even find many able mixing/mastering engineers on this very site.
Count me out though  Im in the middle of my own project.

I record on my own, but go to a studio to mix and master.
I know my limitations, and mixing/ mastering isn't in them. Money well spent, and I also learn from the engineer while I'm in the studio.

Your export should sound exactly the same as it does when you play it in Sonar.
If it doesn't, you have some settings in the export that are wrong (very easy to do - I do all the time).
 
If you could tell us in what way it sounds worse, we could guess at which setting is wrong on your export.
 
Is it distorted?
Is it mono (not stereo)?
Could some instruments or tracks be missing?
 
44,100 16 bit WAV is what you need for CD and therefore also good if you intend to deliver MP3s.
48,000 is more for video.

There are a lot of variables that might come into play, such as the environment and/or playback system you're using to listen to the final product. To see if the problem is "pilot error" or something else, import your mastered file back into the SONAR project so you A/B between it and your master bus. If you hear a difference, then you're doing something wrong in the export. If you don't, then the difference is something external to SONAR.

Thanks guys some great tips! so i should never really move the master bus fader only adjust the track faders? I think the problem also is ive been using windows media player to sometimes play back the song and its colouring the track with extra bass and reverb! So what do you guys play you song back in? sonar a audio editor windows media player?
thanks
Nathan

Windows sometimes defaults to including audio "enhancements" that any rational person would consider a manifestation of evil incarnate. Disable that garbage ASAP!! You'll probably need to dig deep into the Control Panel Sound, or disable a plug-in in Windows Media Player...or both. (Don't forget to take a shower afterward to wash off any traces of the "enhancements.")