Ken, that is a good clip and for me very timely. I just finished building my first acoustic arch top and I have been struggling to bond with it. I'm not a particularly good player and I play very little jazz style music (one reason to build this guitar is to inspire me to play more jazz). My other guitars are flat topped acoustics in a variety of sizes and woods and they more or less form the basis for my comparisons.
First a little about my guitar. Because I had a shaped back in 16 inch without a cutaway I decided to build that size - the back is pressed not carved. The top is carved from Alpine spruce more or less following Benedetto's plan scaled down to the smaller size. I debated for a long time on the bracing to use, but I was influenced by what Bob says "In general a thinly carved top with parallel bracing will produce a louder voice with greater projection than a thicker top with X bracing, which will typically produce a softer, mellow sound".
In a GAL panel discussion about archtops, builder Steve Grimes was asked the difference - he said that his preference was warmer balanced sound which he got with X bracing, He said "its not as quick, but has more warm and character." It seemed like most of the panel members were building X braced rather than parallel brace.
I voted for warmth over projection and went with X bracing
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My reaction to the guitar is that each note is very focused and is very biased to the fundamental. I just don't hear the complexity that I get out of a cedar or spruce topped OM. The guitar is incredibly loud with a lot of head room - I can play it quietly with flesh and nails or loud if I dig in. What I realize from watching the vid is that my guitar actually sounds like an archtop -
. What I have to do is adjust my playing and my listening and maybe my music to fit the guitar more.
I'm also hoping that it will open up - other builders talk about how long that process takes and how they are frequently disappointed at first.
As far as strings, I initially set it up with plain old uncoated light gauge PB acoustic strings. There was so much string noise and this thing amplifies it so badly that I switched to coated acoustic strings (Elixer Nanowebs). I have been debating putting flat wounds on it (I use them on my hollow body electric guitar) but they are expensive and I don't know if that is the right string. I'm going to give it a month or so to settle in.
So, while I'm not interested in building another right now (I do have another back and I do have someone who said they will take one if I do) I'm interested in hearing what other say to your question.
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