Yeah, I've had this problem a few times in the past too. Specially with the amen break.
The solution has been different each time so i'll list a few that have worked for me in the past:
Reduce the bass on the eq on the drums, sometimes only a slight reduction can solve it.
If your running your bass through a filter try playing around with the frequency dial a bit.
Run the whole track through a maximiser(in Reason) turn the clipping on then increase the output volume slightly to compensate for volume loss. (sometimes works, sometimes screws the sound completely)
Best of luck.