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Koa top effect on tone and volume vs spruce


Crunchtime

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Posted

Thin bodies have a pretty neutral sound, but I'd still expect the koa top to mellow down and enhance the midrange of the sound a bit. I love the koa sound, but it does really depend on the guitar to bring it to life.

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Posted

 

Originally posted by cosmogs

Thank you for raising this question. The all koa guitars are so beautiful...

I really really really want this one.


 

 

I love Koa and am a big fan of Martins, but that is not a particularly attractive guitar to me. I'm more partial to Koa-topped GA's and OM's. But that's just me...

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Posted

well im not too much for thin bodied guitars.my yairi all koa is an OM with a dread depth.anyway the tone of koa is TOTALLY different than spruce.you should really try both and see for yourself.i love my all koa.it has a very warm mellow sound with lots of sustain.i play 90% of the time in open or dropped tunings and this is where i feel the koa really shines.some guitars get too muddy or boomy when you go as lo as i do.example A string down to E.but the koa handles it really well.i actually think it's true voice does not come out till you tune down.

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Posted

The problem with koa topped guitars is that some factories don't thin the top out enough. They treat it the same as spruce and you get a dead sounding guitar. If you get one that's built right they sing with a really distinctive voice. Strong fundamental without a lot of overtones.

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Posted

My friend with the all Koa Tacoma EKK-19 told me he is selling it. The thing is beautiful to look at, listen to, and to play. I'm going to try to avoid him for a while, for the sake of my marriage (my wife would F'in kill me!).

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Posted

 

Originally posted by guitarcapo

The problem with koa topped guitars is that some factories don't thin the top out enough. They treat it the same as spruce and you get a dead sounding guitar. If you get one that's built right they sing with a really distinctive voice. Strong fundamental without a lot of overtones.

 

 

gc, do you have any specs on the thickness of Koa tops for guitars? I can't find any info. I recently "acquired" a large amount of the most beautiful 4A flamed koa I have ever seen including a couple of complete sets where the tops are the mirror image of the backs. I am really excited about building a koa top guitar but I have no idea how thin to go with the tops relative to the usual 2.7-3.0 mm for spruce. This is uncharted territory for me.

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Posted

Cosmogs,

 

I had the same model guitar (D-25K2). It's basically a D-28 with an all koa body. Martin only made these from '80 to about '87 or so. The $6K is WAY too much for this.

 

I still have an all koa dred Martin (D-42K2) and prefer the scalloped, forward-shifted bracing to the D-25K2's bracing pattern, but I really like all koa for the reasons the other posters have brought up. I have mine in open D tuning at the present.

 

I did find that both of my all koas sounded really tight for about a year, but medium strings and a heavy hand eventually beat them into shape sonically.

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Posted

Quake17:

 

I saw the same Martin model as you got in an earlier auction, believe that also were on ebay. I`m still kind of sorry I didn`t just go for it, the most beautiful guitar I ever seen. And that regret kind of kicks in when I see the D25 K2 up for sale now. Show us some pics. :cool:

 

I also find it a little difficult to trust a seller without special good feedback with that amount of money.

And I love my HD28.

 

Time will show. :p

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Posted

Cosmogs,

 

I'll try and post some pics later. You might check out the UMGF (Martin Forum). There are koas on there every so often. I believe someone either just sold or still has a D-37K (or K2) for about $1500; it's bad for GAS pains checking out the Buy/Sell there.

 

Grant

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Posted

That koa didn't look flamed at all. Of course that doesn't mean that it won't sound good, but its not exactly eye candy.

 

Also the picture of the upper side of the neck seems to show some finish cracks. The 70's weren't martin's best years.

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