For the builders.....

Does anyone have a theory or rule of thumb on sound holes?

Number of holes?

Hole size to box volume ratio?

Best Location?

Haven't seen this subject discussed anywhere

Views: 158


You need to be a member of Cigar Box Nation to add comments!

Join Cigar Box Nation

Comment by Taffy Evans on April 12, 2018 at 1:32am

Hi Norm, it's a topic that's been discussed a few times here.

The bottom line is the soundhole is a very important feature of an acoustic instrument. Theres too much info to post here. But here are a few things to keep in mind when building.

Smaller  soundhole = more bass response.

None or too small  a soundhole = dull or muffled sound.

larger sound hole= more treble. 

The best place for a soundhole is in a location that will not inhibit top vibrations.

There are three main resonances produced by a guitar box, these are produced by the back, front (top) and the air in the box (guitar body). The back and top resonances can come off the their faces,  they also create, with the help of the strings, the air resonance. If you want to hear that air resonance you will need a  Soundhole.

i have tested this many times in my builds of full acoustic and CBG style guitars. I have gone bigger and made holes smaller, as well as put holes in CBG's that started out with none, all to good effect. In fact even removing the grills from a soundhole gives me more lolume on one of my guitars. 

Just a moment ago I tested the air movement in an acoustic guitar body I'm building, the test went like this........l placed a lighted candle at the soundhole and tapped the guitar top at the bridge position (no bridge yet) and the air movement out of the soundhole blew out the candle. I don't think l'd get that from a CBg.

I would think that the better the CBG is built, the more responsive it is, the more effect the soundhole will have.

Sorry for being long winded Taff

Comment by Norm on April 11, 2018 at 10:52pm

Sure does Richard. Lots of theories out there. Thought it might be a good subject for discussion 

Comment by Korrigan on April 10, 2018 at 9:18pm

My advice is start small. It's easier make a hole bigger with a saw than to make it smaller with Bondo.  :D

Comment by Erasmo Coco on April 10, 2018 at 11:59am

 I think best not to over think it . Just experiment if you are into that .

Comment by Norm on April 10, 2018 at 11:02am

Thanks EC

Seems that's a deep subject with a lot of theory to consider.

Comment by Erasmo Coco on April 9, 2018 at 7:48pm

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



Started by Joe Williams in Performances, How to Play, Lessons, Concerts. Last reply by Joe Williams 5 hours ago. 3 Replies

What's on your workbench?

Started by Paul Craig in Other stuff - off topic, fun stuff, whatever. Last reply by Cause the Blue rat 19 hours ago. 610 Replies

Build This DIY Guitar Fuzz Pedal in 10 Minutes - VIDEO

Started by Shane Speal in Feature Articles. Last reply by Paul Craig Jul 8. 19 Replies

Cigar Box Kalimba - Builder's Notes, Hacks & Blues Tuning Mod

Started by Shane Speal in Feature Articles. Last reply by Shane Speal Jul 7. 7 Replies

Latest Activity

BeetleJuice! posted a photo

1891 Cigar Box Guitar Art

I drew this on top of an old photo I bought on eBay, ( I added it digitally, I didn't ruin the real…
3 minutes ago
BeetleJuice! commented on BeetleJuice!'s group Three string guitars
5 minutes ago
bemuzic commented on bemuzic's video

Daisy Chains - Unplugged Demo - 3 String Cigar Box Guitar

"thanks Nancy, ha , love the pic : -)"
8 minutes ago
JB commented on Randy S. Bretz's photo

Copper Skull - redo

"That's sweet!!!!"
35 minutes ago
JB liked Randy S. Bretz's photo
35 minutes ago
JB liked Dave Lynas's photo
36 minutes ago
JB liked Dave Lynas's photo
36 minutes ago
JB commented on Dave Lynas's photo


"Delivering the Goooods!! :) "
36 minutes ago
Randy S. Bretz liked Casey Baron's video
37 minutes ago
Randy S. Bretz posted photos
48 minutes ago
Erasmo Coco commented on Dennis Goodinson's blog post Licence Plate Resonator advice
"My opinion for pick up is mini humbucker in the neck,As far as box attachment screws.Not an LPG…"
1 hour ago
Korrigan commented on Korrigan's photo

PU Cover and Knobs

"Thanks Andy, but honestly these are so simple to make there was really no work involved. In fact it…"
1 hour ago



© 2018   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service