I agree with Cohma101 - adding a slight amount of shores to your amen break or hi hats might help to make them sit better in the mix and gel with the whole drum group.
You can compress the entire drums group slightly to help it gel together (kick, snare, amen break) but don't go overboard with compression.
Also, when compressing drums, it is good to use a slow attack time so that the initial transient comes through uncompressed. I recommend something like 20 - 35 ms for attack time.
For release time, make it long enough to hold down each note (hi hat hit, snare hit, kick hit, etc.), but short enough that the compressor will be released before the next hit. This is tricky in dnb because it is so fast, so one idea is to have your snare on its own channel, with its own compressor, and your kick on another channel, and so on.
You can also try sending your amen to a bus (or return track in Ableton) that has a distortion plugin like camel crusher (free), and put an EQ in front of the distortion unit to low cut it, so it won't distort the low end of your kick drum (as this sounds crap).
Hope this helps