David August

As we can see in this performance he uses Livid CNTRL:R.

You can see Livid alias 8 couple times in this video.

As we can see in this picture and many others he uses Novation Launchpad. (New Source) All along this set, we can see that he is uses Novation Launchpad, for example at 32:25.

In the Resident Advisor session titled "The Definition of Happiness," David August is seen using a DJ Tech Tools Midi Fighter 3D, positioned on top of the Fender Rhodes Mk II, next to the Livid CNTRL:R.

In RA session he uses a Korg nanoKONTROL2. It is visible at 5:48.

In the Resident Advisor session video titled "The Definition of Happiness," David August is seen using an Apple 13-inch MacBook Pro.

When I bought myself a new sound card two years ago I thought about buying a small one or just something bigger. I knew I wouldn’t use all the functions immediately but I knew as well that I wouldn’t regret buying it. Beside the fact that I have been always in love with RME – you just plug it in and can start to work and it never (and I mean never) disappoints you. I am now using a lot of slots I couldn’t get with a smaller interface. There is just no other brand with such an amazing price to performance ratio. Highly recommended.