TRAKTOR KONTROL F1 is the gateway to mixing with Stems – the open, multi-channel audio format for creative DJing. A Stem file contains a track split into four musical elements – bass, drums, vocals, and melody, for example. With each element available independently, you can create spontaneous edits, mash-ups, instrumentals, and more. Bring track elements in and out of the mix with the F1’s volume faders, buttons, and filter knobs. Get detailed with effects using 16 color-coded pads. All while watching your Stems levels in real-time – the pads light-up as level meters for each stem.