A mix arrives as a flat stereo file playing out of two boxes. A great mix somehow becomes a room: a band arranged in front of you, vocals floating above the speakers, things sitting near and far and wide and deep. That illusion is the soundstage, and this episode is about how to build one on purpose rather than hoping it happens.
The real question is not “where do I pan things”. It is “how do I make listeners forget the speakers are even there”. As Simon puts it, the giveaway of an amateur mix is that you can hear the technology.
“If it’s well soundstaged, I just hear sound coming from everywhere, and vocals up high, floating in the air. When I can hear the speakers, that’s a bad mix.”
What the Soundstage Is
Picture a three-dimensional box that starts at your speakers and runs back behind them. The speakers are the front of the stage, and everything else gets positioned in that virtual room. Old jazz records did it by capture, a Decca tree recreating a real space. Modern records have to build it from synths and 808s that never shared a room, which is exactly why it takes decisions and vision.
Front to Back
Depth is mostly psychoacoustics. To bring something forward: keep it dry and bright, with little reverb. To push it back: darker, wetter, with a longer pre-delay so the reflections separate from the source. There is a neat trick here too, if a reverb is brighter than its source the sound reads as far away, and duller than the source reads as close. And it is all grounded in physics: low frequencies carry further, which is why the club down the street is all bass and the top end never reaches you. The brain does that maths automatically, so you can trust it.
Left to Right, and Out of the Speakers
Side to side starts with pan, plus a little ambience and darkness to place something at the front but off to one side. Getting a sound to leap out past the speakers is easier in stereo, using phase tricks like the Haas effect, and trickier in mono, where a bright, wet slap reverb can throw it forward instead.
Top to Bottom
Height is largely a frequency story. Low frequencies are grounding, a foundation, and they fill the room, which is why a chorus that finally lets the subs in feels like it expands in every direction at once. Highs give lift: a part that sits above everything else, high strings or a shimmer reverb an octave up, reads as up there. Even a tiny dip in the low mids can give a mix what Terry calls shoulders, lifting it off the floor.
Width Is a Relationship
This is the idea that reframes the whole thing. Width on its own does nothing. The ear only perceives wide by comparison, so you need an anchor, something mono and narrow, before anything can feel wide against it. Keep the drums a touch narrow, keep the verse narrow, and the wide chorus lands like a mushroom cloud.
“Sometimes we simplify it and say width, but it’s not width, it’s dimension.”
The Traps
Chase width carelessly and it bites back. Hard-pan the guitars and you get a hollow centre that leaves the vocal exposed and breaks mono translation. The fix is to fill the middle, a triple-tracked guitar down the centre, a room mic on the opposite side, or enough reverb to pull a too-wide part back into the mix. And check in headphones, where too-wide feels instantly lopsided.
Why Wideners Wreck It
They are blunt about stereo wideners: avoid them. Most work by folding out-of-phase information into the sides, which you may not even hear, but your bus compressors, your headroom and your mono fold-down absolutely do, and definition falls apart. The better path is to start from genuinely stereo sources and use mid-side, or, counterintuitively, to get stereo sources down to mono so you can actually place them. If a mix will not go wide, it is usually because it is full of stereo files with no room to move.
Final Thoughts
The through-line is a rule of thumb worth tattooing on the wall: record mono, mix stereo, and build the space yourself. Depth from brightness and reverb, height from frequency, width from relationships and a solid mono anchor. Do that and the speakers disappear, which is the entire point. Get it wrong and the listener hears two boxes in a room. Get it right and they hear a band.
