Why we don't just move the bridge
Posted: Thu Jul 12, 2001 5:31 am
I've had more than one customer ask us why we don't "fix" the location of the bridge on the basis of Mark Arnquist's assertions. I thought I would share my response to such an email today with a few extra comments [in brackets]:
"You can be assured that much technical work with regard to the bridge placement has been done over the years. Unfortunately, it's not the simple issue everyone makes it out to be.
First off, it really is entirely string dependent, the proper length being a function of the type of string, alloy, and gauge. A light flatwound requires quite a bit extra length for compensation while a heavy round wound requires a much shorter string. If the string were a perfect wave motion device this would not be true, but a string is much more complex. It vibrates in a helix instead of a wave due to the windings and the windings exert additional friction at different points depending on type. [This is mainly why one string sounds nice compared to another, instead of just a pure sine wave tone]
Next off, the inconsistency in strings is really unbelievable and unfortunately, some of the most well known brands are the worst. Rather than slag anyone, let me tell you that D'Addario, GHS, SIT, (and naturally our own brand since one of these is our supplier) are the very best in this regard. So called "hand-made" strings are absolutely the worst. [I'm mainly referring to accuracy of string diameter and distribution of mass over the length of the string.]
Then there's the guitar adjustment itself. Bow and height are almost more important than the intonation adjustment at the bridge; these dramatically change the working length of the string. [In the case of a RIC, the neck needs to be dead straight for best action and intonation, which isn't always true for other makes. Don't forget that when you fret, you're creating a triangular relationship between string, fret surface, and bridge height which magnifies errors here.]
A guitar is really a huge bunch of compromises because everything affects everything else and certain simplifications (i.e. straight frets that serve all six strings) make any guitar quite imperfect. Different people hear these imperfections in very individual fashion too, so what I prefer may not suit you at all. As an example, an absolutely perfectly intoned 12 stringer is one of the most unattractive sounds you'll ever hear as some of the normal imperfections are what provide the distinctive character,
The bottom line is not that the placement is wrong . . . the current location serves the widest range of strings and individual preference . . . but the range of adjustability is too limited. [Musical preferences have changed perhaps forcing this, but these guitars are often used for "old music" too.] This suggests that we should simply redesign the bridge assembly and indeed I intend to. You'll note that the 650 Series already has much more travel. The problem is that customers hate for us to change anything on existing models so we are pretty well limited to phasing in upgrades with new models. However, I have posted photos on several sites of the new 300 series bass plate which unobtrusively allows for much greater adjustment. This part is already in our inventory and will be on all new guitars soon. In case you missed it, here's the link:
base plate photo
I wish this issue were just as simple as Mark Arnquist makes it out to be but it just isn't. And can you imagine for one moment that we wouldn't just move the placement if the solution really was so simple?"
"You can be assured that much technical work with regard to the bridge placement has been done over the years. Unfortunately, it's not the simple issue everyone makes it out to be.
First off, it really is entirely string dependent, the proper length being a function of the type of string, alloy, and gauge. A light flatwound requires quite a bit extra length for compensation while a heavy round wound requires a much shorter string. If the string were a perfect wave motion device this would not be true, but a string is much more complex. It vibrates in a helix instead of a wave due to the windings and the windings exert additional friction at different points depending on type. [This is mainly why one string sounds nice compared to another, instead of just a pure sine wave tone]
Next off, the inconsistency in strings is really unbelievable and unfortunately, some of the most well known brands are the worst. Rather than slag anyone, let me tell you that D'Addario, GHS, SIT, (and naturally our own brand since one of these is our supplier) are the very best in this regard. So called "hand-made" strings are absolutely the worst. [I'm mainly referring to accuracy of string diameter and distribution of mass over the length of the string.]
Then there's the guitar adjustment itself. Bow and height are almost more important than the intonation adjustment at the bridge; these dramatically change the working length of the string. [In the case of a RIC, the neck needs to be dead straight for best action and intonation, which isn't always true for other makes. Don't forget that when you fret, you're creating a triangular relationship between string, fret surface, and bridge height which magnifies errors here.]
A guitar is really a huge bunch of compromises because everything affects everything else and certain simplifications (i.e. straight frets that serve all six strings) make any guitar quite imperfect. Different people hear these imperfections in very individual fashion too, so what I prefer may not suit you at all. As an example, an absolutely perfectly intoned 12 stringer is one of the most unattractive sounds you'll ever hear as some of the normal imperfections are what provide the distinctive character,
The bottom line is not that the placement is wrong . . . the current location serves the widest range of strings and individual preference . . . but the range of adjustability is too limited. [Musical preferences have changed perhaps forcing this, but these guitars are often used for "old music" too.] This suggests that we should simply redesign the bridge assembly and indeed I intend to. You'll note that the 650 Series already has much more travel. The problem is that customers hate for us to change anything on existing models so we are pretty well limited to phasing in upgrades with new models. However, I have posted photos on several sites of the new 300 series bass plate which unobtrusively allows for much greater adjustment. This part is already in our inventory and will be on all new guitars soon. In case you missed it, here's the link:
base plate photo
I wish this issue were just as simple as Mark Arnquist makes it out to be but it just isn't. And can you imagine for one moment that we wouldn't just move the placement if the solution really was so simple?"
