I know this may sound obvious, but whatever works for a bass signal will do the same thing for a drum signal. The only thing I've ever run a drum machine signal through is a hard limiter(software) and a Bass Micro Synth. The hard limiter did give the track a bunch more punch and the Bass Micro Synth made it sound like a Transformer transforming (kind of

).
I'm guessing for a simple and generic 'enhance' a chorus may help as well. Collect and try them all.
