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tattiemando
Nov-17-2006, 1:12pm
Does anybody have opinions on Tone bar bracing opposed to (x) bracing for F5's Andrew Mowry built my mandolin with the standard tone bar bracing. I have noticed such makers as Gilchrist regularly use (x) bracing. Who started (x) bracing? Which do you all prefer?

pickinNgrinnin
Nov-17-2006, 1:19pm
Check this (http://folkofthewood.com/page2168.htm) link. It's a question that comes up often. Some heavy hitters weigh in on this topic - including the late Charlie D.

mandolin breeze
Jan-13-2020, 10:04am
I am really curious to understand the tonal differences between an F-hole mando X braced vs tone bar braced. In searching the forum, I keep seeing this dead link (the link in pickinNgrinnin's post above this one). Anyone know what this link was to? Any other info or thoughts on topic would be appreciated.

rcc56
Jan-13-2020, 10:52am
"Who started x-bracing?"

The earliest mandolin I have seen with X bracing was a May Bell from the '30's. It was an f-hole A model.
I have seen X bracing in Gibson L-7 archtop guitars from the same period. I don't recall seeing it [at least not for certain] in any prewar Gibson mandolins.

Unless someone knows of an old Gibson F-5 or F-12 with original X bracing, I would guess that the use of it on an F model is a 1980's innovation by a modern builder.

Traditionally, the origination of X bracing is credited to C.F. Martin Sr. sometime around 1850. Historically, X braced instruments by other makers from the same period have come to light.

amowry
Jan-13-2020, 12:09pm
I'm not sure if Gilchrist uses X bracing much anymore. I've built a few F5s with X bracing, and the difference wasn't as pronounced as I would have expected (I probably wouldn't be able to tell that they were X-braced, playing them blind). I've also built a number of archtop guitars with X and parallel bracing, with similar results. If anything, X-bracing might give a slightly warmer sound, which is what you would expect because they are less stiff longitudinally. However, I carve both types to give roughly the same overall stiffness. Sometimes it's amazing how little the bracing pattern effects the sound, as long as you get the overall stiffness in the right ballpark. Flattop guitars sometimes having wildly different bracing patterns, resulting (sometimes) in minor sound differences.

sliebers
Jan-14-2020, 9:30am
I put parallel, and then X braces into the same mandolin to compare. It's all in this thread;

https://www.mandolincafe.com/forum/threads/138621-6-mandolins-in-2-days