It shouldn't be the bass then. Like I said earlier, just try to play with a lighter touch toward the bridge while playing fingerstyle. Also, I find that it helps to slap away from the fretboard just a touch instead of right on top of the last frets. That gives a bit more "thump" and volume.
Thanks man Ill try playing towards teh bridge more. I dont slap on the last frets either I tend to hit the string right blow the heel of the neck.