I have a problem exporting the mpc file

hi, so i have a problem, practically when i go to save a beat or a song on the mpc and then i transfer it to a usb stick the audio is reduced, the bass is lowered as if there were no more rumbles of the 808 and then I often hear the "S" in recordings. now I would like to understand why this happens when I hear very well both from the headphones and from the mpc speakers, I only see this problem when I save the song.

Dynamic range. This is where compression comes in handy. Your target render format has less dynamic range than your mpc is capable of. You can redline the channels on mpc and hear little distortion or phase issues but once rendered it becomes super apparent. gain staging / compression should clean it up or maybe rock a limiter on the master.