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Author Topic: Installing a sound port  (Read 4308 times)
bluesman67
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« Reply #20 on: December 11, 2012, 04:42:47 PM »

This may help, I've there are a few pics of how Glen DeRusha cut the sound port for my SD, just scroll towards the bottom of the page that comes up on the link.

http://www.larriveeforum.com/smf/index.php?topic=31383.60
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« Reply #21 on: December 11, 2012, 04:57:59 PM »

Thanks Rob!
This may help, I've there are a few pics of how Glen DeRusha cut the sound port for my SD, just scroll towards the bottom of the page that comes up on the link.

http://www.larriveeforum.com/smf/index.php?topic=31383.60

That's helpful too, bluesman.  Thanks!
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Chris
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« Reply #22 on: December 11, 2012, 08:17:22 PM »

Excellent link bluesman. I love the body bevel as well.
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« Reply #23 on: December 14, 2012, 05:17:29 PM »

Well, I did it!  I have to say that I was pretty nervous but I took my time and am very pleased with how it turned out both aesthetically and tonally.
Here are a few pics of the process.

The backing in the guitar does not seem to be ebony but maybe some kind of synthetic material.  Micarta?

1 1/2" hole saw - sharp, slow and easy















A few notes:
I finished it up to 2500 grit wet/dry paper with an oil finish on the raw edges.  
I chose not to put a piece of maple veneer on the inside as I felt the material that was already there would support the grain well and also felt that addint another layer would make it look like it was some sort of plywood.  I usually err toward simple= better.  Besides I can add it later if I want but don't feel it's necessary.
I was going to do an oval hole but didn't feel it would coordinate with the rest of the guitar (the other hole is round, so why not make the new one round as well?).
Placement was determined by how I hold the guitar when standing and sitting - aimed at my face.

I spent some time last night playing with it covered and uncovered (using tape) and there is a definite stereo effect - the sound comes out all around the guitar and makes the instrument feel and sound more alive.  I played with a stereo going fairly loudly and could hear myself really well.  I'll play live with a group this weekend and that will be the true test.  I'll report back about that.

Tonally, it's hard to say if there's any change.  It seems that there's just more of what I like about the guitar going on.

An unexpected benefit is the smell.  I love the smell of walnut and when playing every now and then a whiff of walnut shoots out at me.  Multi-sensory guitar playing experience at it's finest.

Overall, I'm extremely pleased and have no regrets.  
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Chris
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« Reply #24 on: December 14, 2012, 07:23:30 PM »

Good job! That looks great. From the looks of your tool bench, it seems you have a good bit of experience wit wood working.
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« Reply #25 on: December 14, 2012, 07:37:30 PM »

Thanks Brandon!
That's one of my rod building benches in a corner of my basement.  In a previous occupation I was a trim carpenter and still do quite a bit of woodworking and now I have a small part-time business building fly rods. 
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Chris
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« Reply #26 on: December 15, 2012, 12:57:58 AM »

You did a really nice job, it looks cool. The Larrivees have said (I think on the factory tour video) that the black patch inside is Ebony veneer.
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« Reply #27 on: December 15, 2012, 04:28:47 AM »

Looks great,job well done  .Really glad it worked out for you.
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« Reply #28 on: December 15, 2012, 05:25:21 AM »

Thank Rob!  I appreciate your help.   
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Chris
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« Reply #29 on: December 15, 2012, 05:47:14 AM »

Nice job and very nice photos, too.  Looks like your idea turned out to be a good one.

Kurt
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« Reply #30 on: December 15, 2012, 03:01:28 PM »

Nicely done - It's an encouragement to me to finish off my unintentional sound port (removed fishman barn-door electronics hole) in my L-03.

-Scott
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« Reply #31 on: December 15, 2012, 04:29:17 PM »

Thanks guys! 
Scott, how are you going to go about finishing off the barn door hole?  That one seems a bit tricky to me and will require some artistry.  Maybe add some binding or something?
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Chris
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« Reply #32 on: December 16, 2012, 05:23:25 PM »

Great job!! Much neater than mine!  I'm glad you like the sound, I was really glad I did mine, but I'm still too scared to do it to my Larrivee!!
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« Reply #33 on: December 16, 2012, 09:47:11 PM »

Thanks Ben!
Just checking in after I was able to really test this thing out today and couldn't be more pleased.  I was positioned so that I was just a few feet from the drummer (never a good idea) and the guy running sound didn't do a great job but I could hear myself regardless.   The guys I play with said it sounded better than usual today in general (possibly due to me playing more confidently?) then I showed them what I did. Then they wanted to play it and they couldn't believe how good it sounded when playing it as well as out front.
Test complete!!   
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Chris
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« Reply #34 on: December 17, 2012, 02:24:01 AM »

Sounds like a success to me.
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« Reply #35 on: December 21, 2012, 02:10:05 PM »

Oh man, oh man...I too have a walnut L03 and have been considering this for quite a while. Chris, you just gave me a nudge...
If any are still wondering on the sound port, look up Tim McKnight; he is quite a luthier and has done extensive investigating on his now common practice of building with sound ports. He is also very sharing of his knowledge and will surely answer questions if you query him. A port just gives the player their own acoustic monitor--and how many of us just play for ourselves most of the time!? 

I know on my harp guitar, the second hole on the harp arm really gives me an ear-full, and I can even rest my chin on the arm and just float away!
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bobw
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« Reply #36 on: December 28, 2012, 01:03:48 AM »

+1  WOW... your guitar looks great... nice work   +1

Although I have yet to play a guitar w/soundport I think I want to have one installed in my larrivee... I can really tell the difference of what I hear depending on my position to the soundhole. 

Chris, what size of a hole did you cut?   Really glad it turned out so wonderfully for you......  nice guitar

Bobw...
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« Reply #37 on: December 28, 2012, 04:33:09 AM »

Thanks Bob!  The hole is 1.5".
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Chris
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« Reply #38 on: December 28, 2012, 01:59:10 PM »

Chris, thanks for sharing all of the info with everyone... the pics were very helpful, too...  enjoy your guitar... Bobw...
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rockstar_not
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« Reply #39 on: December 29, 2012, 01:10:48 AM »

Thanks guys! 
Scott, how are you going to go about finishing off the barn door hole?  That one seems a bit tricky to me and will require some artistry.  Maybe add some binding or something?

My idea probably doesn't qualify for a full 'finish off' job, but I had two ideas:

1.  Cheap and quick:  buy a length of vacuum hose from the local auto parts store, find full circumference of the hole, cut the hose to length, use an exacto knife to split it down the length, and then simply feed it over the raw edge.

2.  If I follow this example given in this thread, I could put some painter's masking tape around the edge, and on top of it build a 'guide' onto the tape that will guide my dremel tool to cut out the rest of the 'rectangle' that is left over from the fishman barn door.

Here's a photo of what I'm starting with:   (Click to see a larger version)

That was a Larrivee factory install job, BTW - it's the only example I've ever seen of poor craftsmanship from Larrivée and it just happened to be on my axe.  Oh well.  I do like the 'sound port' feature, even though it was unintentional.
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