9 Common Causes of Poor Guitar Intonation
by Frederik Nielsen, Sep 2, 2019 . 3 min read
Guitar intonation is, as the name implies, related to the tone of your guitar strings. You’ve probably noticed that certain strings sound off no matter how well you’ve tuned them.
Bad guitar intonation is usually caused by either poor manufacturing or that you’ve simply used your axe so much that parts of it have been worn down.
What Causes Poor Guitar Intonation?
Your guitar is set up in a very specific way, and any flaw in the setup, however tiny, can have a massive impact on how your guitar sounds. Here are some common causes of poor intonation.
1. Faulty Guitar Strings
Not all guitar strings are created equal, and maybe you’ve bought a bad set. Eliminate this cause by changing the strings. You can do that quickly and easily with the Roadie 2.
2. Too High String Action
If you’ve set high action at the nut or bridge of the guitar, the strings have to bend further when you press them down towards the fret. Adjust your strings to a lower action to avoid this cause.
3. Extreme Guitar Neck Relief
Extreme neck relief is one of the causes of high action, which leads to poor intonation. Turn your guitar sideways to see if your guitar neck is straight dipped or over bent. If it’s not flat, then straighten the neck.
4. Intonation Pieces Aren’t Positioned Properly
The strings rest on the intonation pieces that form part of the bridge. Improperly positioned intonation pieces can cause poor intonation. Adjust them individually for each string.
5. The Nut Is Worn Down or Not Set Properly
A worn down or improperly positioned nut can cause bad intonation. A worn-down nut will need replacement, and a nut set too high should be filed down in order to lower the string action.
6. The Frets Aren’t Positioned Properly
Each fret represents a half step on the chromatic scale and is positioned based on mathematical calculations. If they’re not positioned properly, then you’ll need to re-fret the board.
Further Reading: Mattias Eklundh’s True Temperament Guitar
7. The Frets Sit Too Loosely in the Slots
The frets can sit too loosely if you’ve dropped the guitar or they’re manufactured wrong. As with poorly positioned frets, the only solution to this problem is to re-fret the board.
8. The Nut and Frets Are Worn or Damaged
9. Switching String Gauges
Have you identified the problem?
Hopefully, the reason for your guitar’s poor intonation is one of these nine reasons we’ve listed above. Now that you’ve identified the problem, it’s time to learn how to solve it.
Stay tuned for our next article on How to Intonate a Guitar!
Know of any common causes of poor guitar intonation that we’ve missed? Drop us a comment in the section below and share your knowledge!