Well the bass needs more body before you can really give it a proper umph otherwise it will be louder but not really thicker.
Try a saturator on the bass, followed by some compression... or if you can try layering multiple bass synths, but eq them so they mesh together nicely otherwise you will just end up with a bloody mess.
And then go ahead and compress them together.
And yes, using a multiband comp on the high end will definetly give it more sparkle.