In trance, the bass is sidechained to the kick so both stay punchy without low-end mud

Trance kicks are notably longer than house kicks — around 200–300 ms — providing a sustained thump that drives the longer-tailed trance groove. This extended kick body creates low-end masking: when the kick and bass overlap in the same frequency range, they muddy each other. The standard fix is sidechaining: a sidechain plugin (commonly Kickstart or LFOTool) ducks the bass signal in sync with each kick hit, creating a brief volume dip on the bass whenever the kick strikes. This pumping effect keeps the kick punchy and audible while preserving bass presence in the gaps, producing the characteristic tight, breathing feel of trance low-end. Sidechain depth and speed set the character — shallow and slow for subtle glue, deep and fast for an obvious pumping effect.

Examples

In Ableton: route the kick to the sidechain input of a Compressor on the bass track, set a fast attack (~1 ms) and medium release (~200 ms). Or use LFOTool synced to the kick MIDI for a transparent LFO-based duck.

Assessment

Explain why a long (200–300 ms) trance kick masks the bass, and how sidechaining fixes it. Set up a sidechain compressor or LFO-duck plugin on a bass track and describe the key parameter settings for a clean trance pumping effect.