BassBass sounds generally have lots of low frequencies. Overlapping them will give a lot of rumble, so try to avoid reverb/chorus/long envelopes. To add more punch, try to add a waveshaper or an extra spike at the start. Adding some upper harmonics makes people more aware of the bass.
Also: bassdrums usually do NOT have much bass in a track. If they did they would conflict too much with the driving bassline.