Logic Export Levels vs Session Levels

am i missing a setting or have some kind of setting on that i don't know about?
when i listen to my session in logic, the sound is nice and full. good range of top and bottom.

but after i bounce, whether it be mp3 320 or WAV, the audio seems compressed somewhat, losing some top and bottom.
i tested again today with no EQ, comp, nothing. straight audio out. levels on my player match levels in logic. and there is a noticeable difference in the audio i have in logic vs the sound i exported. no AU's, nothing. just sound straight from a modular to logic. sounds AWESOME in logic, and thin once bounced.

PLEASE HELP! i've been fighting this forever, and finally decided to post my question.

[export have DIM set to 0, all quality is highest, and and normalization if OFF]

thanks