How do I use sidechain?

The EP-133 has a built-in sidechain compressor for that pumping effect:

What sidechain does:

Ducks (lowers volume) of other sounds when the kick hits
Creates the classic "pumping" EDM effect
Makes kicks punch through the mix

Setting up sidechain: 1. Enter effects mode (press FX) 2. Navigate to the compressor effect 3. Enable sidechain mode 4. The kick drum (typically pad 1 in group A) becomes the trigger

Sidechain parameters:

Threshold — How loud the kick must be to trigger ducking
Ratio — How much the other sounds are reduced
Attack — How fast the ducking kicks in
Release — How long until sounds return to full volume

Tips for good sidechain:

Use a strong, punchy kick
Set release to match your tempo (faster tempo = shorter release)
Works best on sustained sounds (pads, bass, synths)
Too much sidechain sounds unnatural

Alternative method: If you want manual sidechain, use the fader to automate volume dips in sync with your kick pattern.

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