The short answer: begin with a symmetrical speaker pair, then compare three equal left-right angles: straight ahead, mild toe-in crossing behind the listener, and aiming towards the listening seat. Keep distance, chair and volume unchanged and choose the mildest angle that gives stable focus and natural balance.
Toe-in changes how the loudspeaker's off-axis response and room reflections reach you. Dolby and Genelec both describe aiming speakers towards the listening position as a common setup principle, while also encouraging fine adjustment for the actual room.
Establish symmetry before changing angle
Measure each speaker to the listening position and nearby side boundaries. Match stand height and front-back position. If the pair is not symmetrical, toe-in tests can hide a distance problem rather than solve it.
Use a centre line on the floor or removable tape to record cabinet orientation. Visual guesses are unreliable when the two speakers sit among different furniture.
Run the three-position comparison
- Mark the straight-ahead position for both cabinets.
- Play a dry central vocal and note centre focus and stage width.
- Rotate both speakers inward by the same small amount.
- Replay at the same volume without moving the chair.
- Try a stronger angle aimed towards the listening position.
- Return to the best two positions and repeat in reverse order.
Listen for more than treble quantity
A stronger toe-in may sharpen the centre and change upper-frequency balance, but it can also narrow the apparent stage. Straight-ahead placement may feel wider while giving less precise centre focus. The best choice is a coherent compromise for the speaker and room.
Use voices, small acoustic groups and dense mixes. Check whether instrument positions remain believable and whether the tonal balance stays comfortable across more than one recording.
Use small angle changes near the preferred position
Once the broad preference is clear, adjust each speaker in equal small increments. Measure from cabinet corners or use a simple angle guide. Record the final position so cleaning or furniture movement does not erase the setup.
Do not use toe-in to compensate for one speaker being closer to the listener. Correct geometry and channel balance first.
Make the result work beyond one chair
After optimising the central seat, move slightly left and right. A tightly focused setup may collapse quickly for a second listener. If shared listening matters, choose a stable area rather than the sharpest single point.
The loudspeaker maker may recommend a particular axis or grille condition. Treat that instruction as the starting reference and document any departure.
Practical checklist
- Speaker-to-seat distances and stand heights match.
- Three initial angle positions are marked.
- Both speakers rotate by equal amounts.
- Chair, wall distance and volume remain fixed.
- The same short excerpts are repeated.
- Centre focus, width and tonal balance are noted separately.
- The final cabinet position is recorded.
Troubleshooting guide
| What you notice | Check first | Next step |
|---|---|---|
| Centre image remains vague | Distance, polarity and mild toe-in | Correct geometry before adding more angle |
| Stage becomes too narrow | Excessive inward angle | Reduce toe-in equally on both speakers |
| Treble differs left to right | Unequal angle or nearby reflections | Match angles and inspect side-wall conditions |
| Only one person gets a stable image | Axes crossing too close to the main seat | Try a milder angle for a wider listening area |
Continue your Miu Audio research
Toe-in is one part of the Miu Audio LS3/5a setup sequence. Set stand height, distance and wall position first, then use this controlled angle test to complete the geometry.
- Explore the confirmed Miu Audio LS3/5a
- Browse Audiophile Hi-Fi guides
- Plan a Springvale showroom visit
Frequently asked questions
Should speakers point directly at the listener?
That is one useful test position, not a universal answer. Compare straight ahead, mild toe-in and direct aim while keeping every other variable fixed.
Does more toe-in increase treble?
It can change high-frequency balance because you hear a different angle of the loudspeaker's response. The amount and direction depend on the speaker design and room.
Where should the speaker axes cross?
Try behind the listener, at the listener and, if the manufacturer supports it, slightly in front. Choose the position that balances focus, width and tonal consistency.
Can toe-in fix an asymmetrical room?
It may help final balance, but it should not replace equal speaker-to-seat distances, correct polarity and considered boundary placement.
Sources
- How To Place Your Monitors, Genelec, accessed 30 July 2026.
- Dolby Atmos Speaker Setup 101, Dolby, accessed 30 July 2026.
- The design of the miniature monitoring loudspeaker type LS3/5A, BBC Research Department, accessed 30 July 2026.
Loudspeaker dispersion and room reflections vary. Follow the speaker maker's axis guidance, make equal reversible changes and use safe listening levels.