The guitar sounded a bit odd on the base string so I made the sound holes adjustable.
The sound holes can be adjusted to have varying openings including one sound hole open and one closed. The adjustment is made via the two screws next to the sound holes.

Views: 282

Attachments:

Replies to This Discussion

Clever idea.  That's part of the fun with these things, being able to "think outside (inside too) the box".

I was expecting a spaghetti measuring device glued over the sound hole :0)

Like the one attached - not sure a cheap plastic device would work - I will have to experiment with one of my guitars.

Does it make a big difference to the sounds you get?

Regards,
David L.
Attachments:
Yeah it does make a difference, the guitar was sounding a bit tinny and off pitch at the base end when I first built it so I taped up the sound holes which help heaps. By taping up one sound hole and placing my hand on and off the other while plucking the base string I could really hear the difference.

So, is your conclusion that a box without sound holes produces better bass balance? My main instrument makes a really quiet, trebly sound played acoustically, so I usually plug it in. If blocking off the holes would improve the bass, it's an easy decision whether to do it.

Calculating the volume of the body and area of the soundhole(s) could allow you to tune the body to emphasize the bass frequencies. Maybe I'll have a go at my No. 1 and see what the resonant frequency calculates to. Maybe I can just tweak the soundholes and get more bass....

http://www.acousticmasters.com/AcousticMasters_GuitarBody2.htm

I think you might be right busyhand, smaller holes or no sound holes for a smoother sound from top to bottom. I cut the sound holes in the guitar with looks in mind and didn't consider the sound quality. Stuff ups are the mother of invention.

RSS

The Essential Pages

New to Cigar Box Nation? How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building BasicsCigar Box Guitar Parts Store

Site Sponsor

Recommended Links & Resources

Discussion Forum

Soundhole sizing and design

Started by Habanera Hal. Last reply by Rich Butters Nov 7. 24 Replies

Adjustable CBG bridge

Started by Jeff Box. Last reply by Thomas Case Sep 4. 3 Replies

Adjustable sound holes

Started by Jeff Box. Last reply by Jeff Box Sep 10, 2017. 5 Replies

Just intonation/scale

Started by Fomhorach. Last reply by Mike Jun 17, 2017. 4 Replies

Classical ball end strings

Started by John Hopper. Last reply by Moritz Voegeli Feb 24, 2017. 1 Reply

Truss rods

Started by Fomhorach. Last reply by Fomhorach Jun 16, 2016. 7 Replies

Measuring wood ( and/or box) resonances - cheaply

Started by Darren Addy. Last reply by Ron "Oily" Sprague Jun 14, 2016. 7 Replies

An idea that I haven't seen - any thoughts?

Started by Habanera Hal. Last reply by Fomhorach May 5, 2016. 12 Replies

A brand new resonator

Started by Mario Poggio. Last reply by Philip Hale May 5, 2016. 9 Replies

Signing your work

Started by Chuck Dubman. Last reply by G.S. Monroe Dec 21, 2015. 17 Replies

Braces and bars.

Started by Brian Lemin. Last reply by Monterey Mar 20, 2015. 8 Replies

Nonadjustable truss rod

Started by Scott W. Last reply by Scott W Jul 17, 2014. 9 Replies

Builders tricks

Started by Lee Martin. Last reply by Wichita Sam Apr 3, 2014. 4 Replies

Making a brass tailpiece

Started by Tim Mac. Last reply by Better Trees Jan 16, 2014. 3 Replies

Resonator cone and coverplate

Started by Keith Weser. Last reply by Mario Poggio Nov 30, 2013. 9 Replies

Neck dovetail

Started by Jillian Holladay. Last reply by Jillian Holladay Jul 23, 2013. 12 Replies

Neck Angle

Started by Wayne Bigler. Last reply by Wayne Bigler Jul 12, 2013. 5 Replies

"Testing" a box for bridge placement

Started by Roadkill a.k.a. John Maw. Last reply by Mark Bliss Jul 11, 2013. 163 Replies

Bridge attachment comparison.

Started by MichaelS Country Boy Guitars. Last reply by StarrCBGs(Donovan) Jul 10, 2013. 19 Replies

fret board material

Started by Sam Fontenot. Last reply by StarrCBGs(Donovan) Jul 10, 2013. 17 Replies

Blog Posts

Mag pickup help

Posted by Fantacone Box Works on December 1, 2019 at 7:26pm 5 Comments

Tupelo Tenor kit

Posted by Craig W.Solomon on November 21, 2019 at 6:51pm 4 Comments

Hello from new member

Posted by Morgan L. Scoggins on November 16, 2019 at 9:52am 8 Comments

Latest Activity

Profile IconBeanJean and Paul schofield joined Shane Speal shanespeal.com's group
Thumbnail

Introduce Yourself!

We wanna know who you are! Where ya from? What'cha buildin'? This is a place for new members to…See More
8 minutes ago
Gus K replied to Andrew Monahan's discussion Acoustic Build - Holes/Short Scale Questions
"FWIW when it comes to airflow, common window screen in a vent will reduce it by ~50%."
14 minutes ago
T-Gripped liked Uncle John's photo
38 minutes ago
T-Gripped liked Uncle John's photo
39 minutes ago
T-Gripped liked shane wagstaff's video
41 minutes ago
Sammy Lloyd commented on Sammy Lloyd's video
Thumbnail

Shane and Sammy sing Whiskey and You by Chris Stapleton

"Thanks Denbo, thanks UJ......we were two men in a shed on a cold blustery winters morn having…"
1 hour ago
Dennis "Denbo" Goodinson commented on Sammy Lloyd's video
Thumbnail

Shane and Sammy sing Whiskey and You by Chris Stapleton

"What a pleasure, ditto UJ's comment, fine performance :))"
1 hour ago
Dennis "Denbo" Goodinson liked Sammy Lloyd's video
1 hour ago
Dennis "Denbo" Goodinson liked Downtown Vinnie's video
1 hour ago
Dennis "Denbo" Goodinson liked Uncle John's photo
1 hour ago
Dennis "Denbo" Goodinson liked Uncle John's photo
1 hour ago
Dennis "Denbo" Goodinson liked Uncle John's photo
1 hour ago

Music

Loading…

© 2019   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->