| Question: I was looking for information about Intonation. I'm an amateur
classical guitarist and have a [maker name withheld] classic guitar. Being
a bit handy, I made a saddle to lower the action. I like it very low, the
lowest possible without fret string buzzing.
Your article about intonation was very informative. Wish I knew about
you before buying my guitar.
Question, would a lower saddle change intonation from a higher saddle?
I've lost the original saddle to make a comparison. I am more aware now
that the Et, B & G strings get flatter going up the finger board--especially
the Et. Right now I compenate by tuning these open strings a bit sharp to
be in tune higher up, but it's driving me crazy!!! I shouldn't have to do
this to such a nice guitar.
The D, A and Eb are perfect. Would love to hear you before I try to
make a new saddle that would shorten the treble string distances.
Thanks for listening - Dennis M. Rief, Miller Place, NY
Answer: >...would a lower saddle
change intonation from a higher saddle?< It could, but it would
take quite a bit of saddle lowering (say, 1/16"or more) to make the
change audible if the intonation is accurate to begin with. However,
if intonation on any of the strings is already flat higher up on the fingerboard,
lowering the saddle just a little will increase the flatness...and make it
more noticeable.
Everything you tell me indicates that
the saddle on your guitar is OVERcompensated, i.e. too much setback. (This
is unusual: typically compensation is too little.) I also
suspect from what you say that the compensation is uniform, or nearly so,
for all strings; I'd be surprised to find out that there is a treble-bass
back slant in the saddle slot. If the saddle break points for the
flat strings are substantially back from the front of the saddle, it may
be possible to make a new saddle with break points set forward to create
the correct nut-saddle distance specified in my intonation article.
However, if the flat-string break points are at or very near the front of
the saddle (and I'd be surprised if they weren't), it would be necessary
to fill and re-cut the saddle slot (assuming there is enough wood on the
forward side of the saddle block for this) to create room for correct
compensation. |