420 Stereo Widener

420 Stereo Widener is a fast, mix-friendly way to open up the stereo image without sacrificing focus. It's built to add separation and dimension where it matters. Keys, guitars, pads, backing vocals, and wide background elements, while keeping the center solid and the mix translation-safe.

Start by dialing in Width to set how far the sides expand, then use Bass Focus to keep your low end anchored in mono. Bass Focus sets the frequency below which content stays mono. For example, set it to 200 Hz and everything under 200 Hz remains centered and tight. Treble Focus works the same way in reverse: it sets the high-frequency cutoff above which content stays mono, helping you avoid brittle "phasey" top end while still widening the body and presence range.

Use 420 Stereo Widener subtly for polish and clarity, or push it harder when you want an obvious spread that still holds together in mono.

420 Stereo Widener is part of the larger 420 Plugin Suite, and you can try the full suite free for 30 days.