Better sound in 5 minutes Vol. 5
How Much Toe-In Is Too Much?
Adjust tonal balance, focus, and soundstage width with one of the smallest changes you can make to your system
Toe-in is simply the angle of your loudspeakers toward your listening position.
It sounds like a minor adjustment because physically, it is. You’re only rotating the speakers a few degrees. But those few degrees can have a surprisingly large effect on image focus, tonal balance, and the width of your soundstage.
The temptation is to keep pointing the speakers farther toward you until the center image becomes as sharp and precise as possible.
That can be a mistake.
Too much toe-in can give you a wonderful center image while squeezing everything else into too narrow a space. The goal is not maximum toe-in. What we’re looking for is the minimum amount necessary to properly focus the image while allowing the rest of the soundstage to remain open and dimensional.
Start With Something in the Center
Begin with a recording you know well that has a single voice or instrument clearly positioned in the center.
Sit in your normal listening position, close your eyes, and listen.
Does that performer appear solidly between the speakers? Can you imagine an actual person or instrument occupying that space? Or does the image seem vague and diffuse?
If the center image isn’t as clearly defined as you’d like, turn both speakers slightly inward.
And I mean slightly.
Work in approximately one-degree increments, then sit back down and listen again. Continue until that center image suddenly snaps into focus.
You’ll know it when you hear it.
The performer should no longer seem attached to either loudspeaker. Instead, the image should appear between and behind them as its own distinct source.
Now Back It Off
Here’s where the real trick begins.
Once that center image snaps into place, don’t assume you’re finished.
A single instrument is relatively easy to make sound impressive. If you continue adding toe-in, you may make that center image even more precise, but eventually you’ll pay for it elsewhere in the soundstage.
So start reducing the toe-in again, one small degree at a time.
Listen after every adjustment.
Eventually, the center image will begin to lose its focus and become diffuse again. When that happens, add just a small amount of toe-in back until it snaps into place.
That’s what we’re after.
The minimum amount of toe-in required to create a properly focused center image.
Make Sure You Haven’t Squeezed the Soundstage
Now switch to a recording with a larger instrument or a presentation that naturally occupies more horizontal space.
A piano is useful here because it gives you something much larger to listen to than a single voice or horn.
What you’re checking for now is whether you perfected the center image at the expense of everything around it.
Does the larger instrument feel spacious and properly dimensional? Or does it seem compressed toward the middle of the system?
Make another very small toe-in or toe-out adjustment and listen again.
This is the balancing act.
More toe-in can improve image specificity. Less toe-in can allow the soundstage to open farther across the room.
Neither is automatically right.
You’re trying to maintain that believable center image while allowing larger instruments and the rest of the recording enough room to breathe.
Small changes here can make a big difference, so take your time.
Listen to Something Bigger
Once you’re happy with the center image and a larger instrument, move to a recording with a much broader presentation.
A well-recorded drum kit can be particularly useful because the percussion should occupy considerably more space than a single instrument in the center.
Listen for the relationship between image specificity and width.
Can you identify where sounds are occurring while still getting a convincing sense of scale across the soundstage?
More importantly, do the sounds seem detached from the physical loudspeakers?
If your attention keeps getting pulled directly toward the speaker cabinets themselves, the illusion we’re trying to create hasn’t fully happened yet.
Continue experimenting with very small amounts of toe-in and toe-out, always comparing what happens to focus against what happens to width.
Then Put It All Together
Finally, play a recording with several musicians performing together.
Now you’re asking your system to do everything at once.
A performer in the center should remain clearly defined. Larger instruments should maintain their scale. The overall presentation should have width and dimensionality rather than collapsing toward the middle.
And, most importantly, the musicians should seem disconnected from the two loudspeakers creating the sound.
This is why dialing in toe-in with only one recording can be misleading.
You might create a spectacular center image and think you’re finished, only to discover that a larger or more complex recording has been squeezed into too small a space.
Using progressively larger and more complex recordings lets you hear both sides of the tradeoff.
What If the Center Is Focused but Sounds Thin?
There’s one more adjustment worth making before adding more toe-in.
If your center image is properly focused but the instrument or voice still sounds thin or lacks body, try moving the loudspeakers slightly closer together.
Work in approximately three-inch increments, and remember to re-aim the speakers after each move.
Bringing the speakers closer together increases the coupling between their woofers or midbass drivers, which can produce a warmer, fuller presentation.
But again, there’s a limit.
Move them too close and other instruments can begin crowding into the center, losing some of their dimensionality.
The goal is to maintain as much distance between the speakers as possible while still achieving the tonal balance and center-image solidity you’re after.
So, How Much Toe-In Is Too Much?
There isn’t one angle I can give you that works for every loudspeaker and every room.
Some speakers work beautifully with very little toe-in. Others perform better pointed much more directly toward the listener.
Your ears have to make the final decision.
But the process is straightforward:
Find the point where a clearly centered instrument snaps into focus. Then reduce the toe-in until that focus begins to disappear and add only enough back to restore it.
From there, listen to larger and more complex recordings to make certain you haven’t gained center focus by sacrificing width, scale, or dimensionality.
The goal isn’t to get the speakers pointed at you.
It’s to get the speakers to disappear.
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