Need some recommendations for some hard techy drum and bass albums. What would you suggest?

Hi

I would like to buy some albums in the DnB genre that are really dark in a lot of respects and conform to the title description. What would you suggest? I don't know much about the genre at all, although really like Black Sun Empire as well as tracks such as 1138 by Corrupt Souls (https://www.youtube.com/watch?v=1w4iD-jJAmQ) and Where's Jack The Ripper (Origin Unknown remix) by Grooverider (https://www.youtube.com/watch?v=FoJayCQ8cGs).