Stereo Width
Stereo width describes how much of the stereo field a sound occupies, from fully mono (center) to fully wide (hard left/right). In EDM, stereo width is used to create depth and space—supersaws and pads are pushed wide, while kick drums and bass remain mono for club compatibility.
Stereo width is created through several techniques: panning individual layers to different positions, using unison detune on synthesizers, applying stereo widening plugins, or using mid-side processing to enhance or reduce the side channel independently of the mono center.
A key principle in EDM mixing is keeping low frequencies mono. Bass energy below 200 Hz is non-directional and causes phase cancellation problems when played in mono (clubs, phone speakers). Keeping kick and bass centered preserves punch and prevents mud.
The upper frequencies—supersaws, pads, hi-hats, and effects—benefit from wide stereo treatment to create the sense of space that makes EDM feel large and immersive on a system. Tools like iZotope Imager, Ozone's Stereo Widener, or FL Studio's Fruity Stereo Enhancer let you control width by frequency band.