本人一直北京不加湿 013弦
面板鼓要说是弦啦的我信天天张嘴就说加湿的朋友是不是被琴行忽悠了那些50年的老琴别弹了
一般小品牌的琴木头都没风干到一定程度，有的直接烘干。湿度达不到肯定裂，低档次的居多。高等琴基本没事。
[ 本帖最后由 mj2008mj2008 于 2011-3-7 21:36 编辑 ] 我这里今天湿度90%， 想知道一下如果湿度90%的话是不是要在琴箱里放包旺旺仙贝的干燥剂了 民谣琴不加保养的话，用高张力弦，一般都会鼓起，手感变差，必要时需要调整。 其实很关系的 我刚买的新琴也是一样。正常的！ 楼主请看制琴师john greven对他制作的Greven吉他面板稍微鼓起的解答，貌似和你的琴一样。
The top is braced lightly, not like a Collings or modern Martin.It will show movement up and down depending on humidity and string gauge. This is normal top behavior for a 30's style top construction.Many modern companies like Martin, Taylor and Collings have gone to using much heavier bracing and large bridge plates to achieve near immobility of their tops, which keeps them very flat.The down side is they are heavily built and do not sound nearly as good as the more lightly done top. There is supposed to be some movement of the top behind the bridge area and some compensating down movement of the top near the edges.It is how the guitar was designed and is a close reprecstative of the early 1930's Martin construction.It should be fine and will shrink back by 1/2 with the dropping of the humidity levels. 背板有一点点鼓是正常的，如果面板鼓起肉眼都能看出来的就不正常了，由于拉力会有一点点鼓起，正常情况下肉眼看不出来的。建议你不要调的太紧，最紧比标准音低一度，长期保持标准音，再加上燥热的空气，可能会引起变形。不过我觉得你的情况不严重，应该可以恢复，把弦调松 上图片 大家看看吧
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