Have you tried the "Hear" button? That should make a lot of difference on the output if everything is setup properly.
That was exactly the silly thing I was doing Minetti
Thank you very much for the response
depending on the headphones you are using, lower frequencies may not be heard very well, especially if the output of your sound card is "vanilla" straight to your headphones from ST.
in my case, i prefer this method to calibrating ST for optimal sound as its a "vanilla" output to the headphones.