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Frets 8-19 the same note as the 20th?

K

Kusabi

Aug 12, 2009
61
0
Buffalo, NY
#1
I have a MIM P-bass and have been generally happy with it. However, after lowering my action on the g string to about 1/16" at the last fret, if I play any note frets 8-19 I hear the note of the 20th fret. I'm not sure if a simple tightening of the truss rod will help as my neck is fairly straight with a tiny bit of relief. Would filing the 20th fret a bit help? Raising the action eliminates the problem but it has to be pretty high and I'd rather have it somewhat low.

Thanks in advance :bassist:
 
#3
loinmute said:
Look up intonation.
Do not tighten the truss rod to get more relief, it does not work like that.
Do not file the fret


check/adjust intonation.

BTW, are you checking the notes with a tuner?
Click to expand...

The intonation is fine. And I am aware that tightening a truss rod removes relief, not adds it. However, as too much relief can lead to buzzing higher on the neck I was curious as to whether tightening the truss rod could help. I am indeed checking with a tuner.
 
#6
When you say that you are "hearing" the note at the 20th fret do you mean that the action is so low that the note is being fretted when you play the lower notes?

If this is the case you need to add more relief to the neck by loosening the truss rod.
You might find that once you loosen the relief of the neck you will be able to lower the action even more. It's hard to tell what the exact issue is without seeing the bass. With that said you might have a loose fret that is coming out of the neck. Check for that as well.

This isn't a fine art. It just requires some "tinkering" to get it set up the way you want it. Your intonation has nothing to do with the problem that you are describing.
 
#7
Kusabi said:
I have a MIM P-bass and have been generally happy with it. However, after lowering my action on the g string to about 1/16" at the last fret, if I play any note frets 8-19 I hear the note of the 20th fret. I'm not sure if a simple tightening of the truss rod will help as my neck is fairly straight with a tiny bit of relief. Would filing the 20th fret a bit help? Raising the action eliminates the problem but it has to be pretty high and I'd rather have it somewhat low.

Thanks in advance :bassist:
Click to expand...

1/16" at F20 is too low, period. Whatever anomalies there are in the fretboard, can't accommodate action that low. Plus, tightening
the trussrod, would make this worse.

Stickies>Setup, up top.
 
#9
I've always had good look on bass setups by starting at the standard dimensions recommended by Fender in their bass setup guide. Then making minor adjustments as required. Set your G string clearance to 5/64 and I'll bet your problem will be solved. If that doesn't do it, just for a goof, try 3/32.
 
#12
1/16th is roughly 1.5mm: Try raising your saddles to get 2.3mm action. Like they said, 1/16 is too low, especially with the fingerboard radius of Fenders. 1/16 is usually achieved with 5-6 string basses or basses with a higher radius(flatter). Or under ideal craftsmanship.
 

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