To get a solid centre image, place your two speakers and your listening seat at the corners of an equilateral triangle, so each speaker sits 30 degrees either side of straight ahead. Keep the tweeters at seated ear height, pull the speakers a little away from the walls, and angle them slightly towards you. Get those four things right and a singer should appear in the middle of the room, with no speaker there.
That floating centre is called a phantom image. Your brain builds it from two nearly identical sounds reaching both ears at the same moment and the same level. Everything in this guide is about protecting that balance.
How to position stereo speakers: the 60 degree listening triangle
The reference layout for stereo is an equilateral triangle. The distance between the speakers matches the distance from each speaker to your head, so they sit 60 degrees apart from where you sit. The same angle is used in the international recommendation for studio monitoring (ITU-R BS.775), so most music is mixed on speakers set up this way.
Go much narrower and the soundstage shrinks towards mono. Go much wider and a hole opens in the middle, with sound clinging to each cabinet. At 60 degrees, width and a firm centre coexist.
You don't need a protractor. Measure between the front centres of the two speakers, then from each speaker to where your head will be, and adjust until all three numbers roughly match. Within 10cm or so is close enough to start.
How far apart should stereo speakers be?
For most living rooms, 1.5 to 3 metres apart suits bookshelf speakers. The spacing follows the triangle: if your sofa is 2.5 metres from the speakers, aim for about 2.5 metres between them.
If the room forces a compromise, sit a little further back rather than spreading the speakers wider. A slightly narrower angle keeps the centre stable. A wider one tends to open a gap.
Distance from the rear and side walls, and what it does to bass
Low frequencies spread out in all directions, so a speaker close to a wall gets its bass reinforced by the reflection from that surface. Right against a single wall, the lowest notes can gain up to around 6dB. In a corner, where three surfaces meet, the boost grows further and turns boomy.
A little reinforcement is welcome with compact speakers. Too much makes bass slow and one-note, smears the midrange where voices live, and blurs the timing cues your brain uses to place sound.
Rear wall: start with the front of each speaker 20 to 50cm from the wall behind it. Closer gives more bass weight, further out gives tighter bass and more depth.
Side walls: keep at least 50cm clear if you can, and make the distance similar on both sides.
Corners: avoid them. If one speaker must sit near a corner, put its partner in a matching position.
Move the speakers in steps of 5 to 10cm with a steady bass line playing. Stop when the bass sounds full but each note still starts and stops cleanly.
Tweeter at ear height: stands, desks and tilting
High frequencies beam forward from the tweeter in a fairly narrow cone, and they carry much of the detail your brain uses to locate sound. If the tweeter fires at your chest or over your head, the top end dulls and the image loses focus.
So the tweeter should be roughly level with your ears when seated. On a typical sofa that is around a metre off the floor, but measure your own.
Stands are the cleanest solution. Pick a height that puts the tweeter at ear level with the speaker on top. Rigid stands also stop the cabinet rocking, which helps bass definition.
Sideboards and TV units are often too low. Tilt the speakers back slightly with small wedges or angled pads so the tweeter points towards your head.
Desks put you close with the speakers below eye line. Raise and angle them on desk stands, and keep them clear of monitor edges.
Speaker toe-in: how much, and how to adjust it by ear
Toe-in means turning the speakers inwards towards the seat. It changes the balance of direct and reflected sound, and how sharply the centre locks in.
Start by aiming each speaker so its axis crosses just behind your head. From the seat, you should just see a sliver of each speaker's inner side panel. Then adjust by ear:
More toe-in sharpens the centre and reduces side-wall reflections, but can narrow the stage and push the treble forward.
Less toe-in widens the stage and softens the top end, but the centre can turn vague, especially in lively rooms.
Turn both speakers by the same few degrees at a time. When the vocal is focused and the stage still reaches beyond the cabinets, stop.
Why symmetry matters so much
Your brain locates sound by comparing arrival time and loudness at each ear. When both speakers are the same distance away, in similar surroundings, those cues match and the centre holds. When one is closer, the precedence effect takes over: the sound that arrives first pulls the image towards it, even with a difference of a millisecond or less.
Sound travels about 34cm in a millisecond, so a speaker 20cm nearer will drag the vocal to its side. Match both distances to within a couple of centimetres, and give each speaker similar surroundings. A bare wall on one side and a full bookcase on the other will not sound the same.
Placing speakers either side of a TV
In most homes the television decides where the speakers go, and that works well. A speaker each side of the screen puts dialogue in the centre, where the faces are.
Keep the speakers a hand's width or more outside the edges of the screen.
Bring the front of each speaker level with, or slightly ahead of, the TV. A speaker set back behind a hard, reflective screen loses clarity.
Check the triangle from your seat. A wide TV and a close sofa can push you past 60 degrees, so sit back a little or bring the speakers in.
Avoid putting speakers inside cabinets, alcoves or shelf cubbies. An enclosed shelf resonates and reflects sound back onto the drivers, adding bloated bass and smeared imaging. If a shelf is the only option, bring the speaker right to the front edge.
A 10-minute speaker setup, step by step
Pick the seat first and mark where your head will be.
Rough in the triangle so the speaker spacing matches the distance to your head.
Set the height with stands, or tilt the speakers back if they sit low.
Pull them off the walls, 20 to 50cm from the rear wall, in matching positions.
Equalise the distances to your seat to within a couple of centimetres.
Add toe-in until you can just see the inner side panels.
Play a familiar vocal track. Choose a well-recorded song with one voice mixed centrally, something you know well. Close your eyes. The voice should sit in one small, solid spot between the speakers, not spread across the gap or leaning to one side.
Fine-tune. If the voice leans left, check distances and surroundings on the right. If it sounds vague, add toe-in. If bass is heavy, move both speakers out 5 to 10cm.
Common speaker placement mistakes
Speakers pushed into corners or flat against the wall for tidiness.
One speaker on a shelf and the other on the floor.
Tweeters firing at knee height from a low TV bench.
Speakers tucked inside a TV unit or bookshelf cubby.
Objects in front of the drivers, such as plants or photo frames.
Using the balance control to fix an off-centre image instead of moving the speakers.
Getting it right with uStream One and uStream Two
The uStream One and uStream Two are designed to sit either side of a television. Connect them by HDMI ARC and volume usually stays on the TV remote. Optical is there for TVs without ARC. On the uStream Two, every input sits on the left speaker.
Because each pair is true wireless stereo, there is no cable between left and right. They pair automatically when switched on, with no app and no Wi-Fi. Each speaker still needs a mains socket, but you can set the triangle, spacing and toe-in where the room and your ears want them, not where a speaker cable reaches. Our stereo vs soundbar comparison covers how this differs from a single box.
Frequently asked questions
Should speakers point directly at the listener?
Start with the axes crossing just behind your head. Pointing straight at you sharpens the centre but can make treble more forward, so let your room decide the final angle.
How far from the wall should speakers be?
Start 20 to 50cm from the rear wall and at least 50cm from side walls. Closer adds bass weight, further out tightens it.
Why does the vocal sound off-centre?
Usually one speaker is closer to you or sits in different surroundings. Match the distances before touching the balance control.
Can I put speakers in a bookshelf?
Best avoided, as enclosed shelves add boom and blur the image. If you must, bring the speakers to the front edge.
For why two speakers beat one in the first place, read why stereo still matters, and if the room still sounds harsh after setup, what makes a room sound calm is the natural next step.
