Ableton's Drum Buss is a single-device drum processor that handles compression, distortion, transient shaping, and low-end enhancement in one place. This walkthrough from Ableton's Learn Live series goes control by control through the entire interface, explaining what each section actually does to your signal.
The input stage starts with a Trim slider to reduce level before any processing hits, followed by a fixed compressor you can toggle on or off. Three distortion modes give you a spectrum of character: Soft uses wave shaping, Medium applies limiting, and Hard clips with an added bass boost. A Drive dial controls how much distortion is applied.
The middle section covers transient and frequency shaping. The Transient dial lets you push or pull the attack of hits, a Dampen dial rolls off high frequencies, and Crunch adds mid-range distortion on top of whatever the main distortion mode is doing.
The Boom section handles low-frequency enhancement with its own frequency and decay controls. Force to Note snaps the enhancement frequency to the nearest MIDI note, which makes it practical for tuning the sub boost to your kick or bass. The Boom Audition button lets you solo just the low-end enhancement so you can hear exactly what it's adding before committing.