If you aren't familiar with the concept of Parallel Compression, it can really add depth and weight to your Drums and Bass in the Mixdown.
Usually we use Compressors as insert effects in our Productions, either to control peaks, transients or for creative effects such as Sidechain Compression.
With Parallel Compression, we use the Compressor (in this case, a Glue Compressor) on a Return Channel, and send our Drum Group channel to it, where it's heavily Compressed with extreme settings, resulting in audible pumping, slamming and gain reductions often reaching 20dB!
Putting the Compressor on the Return Channel means we can control the Compression independently of the main Drum Mix. We can EQ, Filter, and add Distortion and Drive to this signal, and level it so it blends perfectly.
This technique is also well known as New York Compression, and is an essential technique to take your tracks mixes to the next level
We cover this and so much more on the Mixdown Mastery Course - with Live, In Realtime Mixdowns, full technique and theory breakdowns, and so much more!