Does 12-54 to 13-56 gauge change require a re-setup?
I'm thinking I should switch to a slightly heavier set of strings for a better "rounded" tone, especially on the lower strings.
Currently I use Martin Phosphor Bronze .12-.54 gauge, the one I'm eyeing is a D'Addario .13-.56.
My guitar is a OM (000) style acoustic, 25.5" scale with fixed bridge; it has a mahogany neck, bone nut and compensated bone saddle.
So, if I make the switch from .12-.54 to .13-.56 gauge strings, will I have to make a truss rod adjustment, or nut and saddle change, or any other changes?
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Your guitar will tell you the answer. It will respond with action changes, and those may be within your realm of "normal", or they may exceed that and become undesired.
With the lighter (original) strings installed, did you measure the action in order to quantitatively assess the change in tension? Do you have a new measure with the heavier strings for comparison? Does the guitar play satisfactorily?
Ultimately, a truss rod adjustment may suffice, if necessary. Remember to adjust it in small increments, then wait for things to "settle". This time of year, you may also need truss rod tweaks for humidity, depending upon how you store your instrument. And if you're not comfortable performing the changes yourself, take it to your local luthier or setup tech.
If you were satisfied with the setup before the string change, I do not expect that any saddle or bridge adjustments would be required. Enjoy yourself!
as these guys have said, the combination of woods, existing setup (even scale-length) and environmental factors will ultimately determine whether setting up is needed of not. ive got a couple of guitars i NEVER need to setup, and another couple that need setting up almost continually.
in answer to your question- i dont think the tension is going to go up considerably, if youve got a truss rod, it might want aq quarter turn or two (done over a day or two) to counteract the tension increase. otherwise you may lower the bridge a tad, but i dont think its going to be noticably "worse" to play.
The average extra tension, given the same material strings, is around 5% or less. This shouldn't make a lot of difference to the neck. Obviously, after they've settled for a few days is when the evidence will show - or not. Intonation wise, again, the guitar will most likely shrug its shoulders.Some guitars are like that! Others may be a little fussy.I think if you tuned up just under a semitone,(with the existing strings), that would give a fair idea of what the new strings could feel like. A proper calculation would give more exact variations, but this is rule of thumb.
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