Collingsguitars.com Collingsforum.com Collings Forum Gear Technical and Repair Info. Sound Ports and Bevels
Collingsforum.com Collings Forum Gear Technical and Repair Info. Sound Ports and BevelsPage 1 2
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Kevdog
How did you end up with a soundport in a Goodall, James doesnt offer them, presume you had it done. Sound port doesnt change tone of instrument would you agree just sound dispersion. Ive heard it said sometimes bass frequency alters slightly. How large is your soundport. |
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Isha-
I put it in myself- 2" round soundport. It doesn't change the tone except to make it "brighter" and fuller. The harmonics are accentuated and the sound just projects, not only up to you, but out as well. Honestly it's hard to describe other than using metaphors- it's like power steering, steroids... the sound just jumps out out you....doesn't change the sound at all rather it enhances it and in the case of my Goodall- amazingly so... |
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Very interesting, may I ask how you did it.
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I did think about doing this to one of my cheaper classicals, just to hear what it would sound like, but I never did it.
Here's how I would have done it...Place a couple of layers of masking tape (the good kind, that is used when painting cars) from the back across the side and wraped on to the front. This is to hopefully prevent cracking and to keep the drill bit from dancing around the lacquer finish. Next, mark the center of the hole and begin the drilling with a small bit, continually steping up the size. I'd probably want to ask a luthier for some advice and maybe practice on a cheapie. |
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Pretty much what Papi said-except I would put masking tape on the inside surface to prevent tear out when you break through.
The hole saw has a guide bit so that's all I used. |
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Very Brave, what about physics and all the finer details about dimensions and placement.
Maybe there is none, as every porthole seems to be different and unlike conventional center of board placement. |
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With my Mustapick baritone, I wanted to help enhance the lower mid range frequencies that tend to get lost a bit in the overall mix. I couldn't have been more pleased with the end result.....
 I think it might be interesting to hear how it might affect a Collings OM1A that naturally seems to project more to the audience vs. the player. Although I wouldn't want to upset anyone by carving a hole into a Collings......  |
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Tom,
You keep saying "treble." Unless there's something I am missing, I think you mean "bass."
Two Collings, two Huss & Daltons, a Larrivee, an H&F, and a bunch of Martins. |
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Collingsguitars.com Collingsforum.com Collings Forum Gear Technical and Repair Info. Sound Ports and Bevels
Collingsforum.com Collings Forum Gear Technical and Repair Info. Sound Ports and BevelsThis is an independent website created by a group of Collings Guitar owners, and not part of Collings Guitars. The statements and opinions expressed in the Collings Guitar Forum are solely those of the individuals posting the same and are not those of Collings Guitars, the forum's administrators, moderators and its supporters, financial or otherwise, or its members, guests or other contributors.