I recently built a cigar box kalimba and used a round piezo attached with two-way tape to the soundboard prewired to a 500k pot and a jack.  It sounds great, but it has a lot of handling noise.  Everything I touch on the instrument is picked up by the piezo.  Is that normal?  I haven't used one on a CBG yet but may start.  I like mag pups but they hog a lot of space especially with neck-thru design.  Thanks.

Views: 163

Reply to This

Replies to This Discussion

Hi Kevin, the disc style piezo works by picking up the wood vibrations, an so also picks up vibrations from any thing that excites the wood.

On the other hand under saddle strip piezo's read the strings more due to their close contact with them, so do not transmit timber/body vibrations.

They produce a different sound, brighter [ often called Quacky] but less prone to feedback, and more work to fit. both can work better with a preamp.

Taff

Most folks tame the piezo sensitivity  by setting it in a bed of hot glue, then covering it in hot glue again.(but be sure you like the spot  it sits . it may be hard to remove without damage ). I have also seen folks encase the piezo in  foam first . try  any temporary set up you can . then go with what works . 

adding a preamp ,either onboard or separate  helps too.

Thanks guys.  I have a CBG I'm working on and I think I'm going to use a disk piezo.  The kalimba is very small so my hands are close to the piezo all the time.  I'm thinking it may not be as sensitive on a guitar, as least with the left hand on the neck.  And yes, a preamp does help a lot to get a strong enough signal to the amp.

In this case , the preamp lets you tone down the eq type settings manually , so it doesnt sound like you are pulling a cat through a keyhole . 

 so it doesnt sound like you are pulling a cat through a keyhole . 

Now THAT made my day! :) Thanks Anonymous. 

Watched hundreds of videos. Played on and heard hundreds of CBGs.  I can honestly say there's only been a small hand full that have had a bad sound plugged in. But these few had an odd sound when played acoustically as well. Unlike a pup a piezo will only give you what you put it in. 

If the body of the Kalimba is really small make a stop box for the preamp instead. That way you could share it with other builds as well. 

Are there better quality piezos with less noise?  Or are they all pretty much the same?

Pretty much the same . , but  rod piezos are a a step up in sound quality from disks   for cbgs. ...  in my opinion .  They work  a bit differently and are installed different , you may want to research those .

Piezos come in several sizes.  Is there a difference in sound or volume between a 20mm and 50mm piezo?  Doe size matter?

Hi Kevin, I imagine there is a difference. The piezoelectric I use on my CBG's cost a few dollars as single units, I can get packets of ten, and they are as you described unless I do sme creative thinking when installing them.

However the units I put in the full guitars that I build cost hundreds of dollars, and perform very well and do not pickup body taps and feedback is less prone.

There are different crystals, and along with different sizes have different ratings in output and other electrickery that I don't pretended to understand. I understand that a high priced model CBG out there uses these good quality piezo.

Taff

Man, after trying about 5 different spots and as many piezos, I think I finally found a spot that is a decent balance of tone and handling noise.  It's on the backside of the neck closer to the heel than the bridge. The tone is good and the noise is manageable.  When I put the neck through, I beefed up the backside to compensate for what I had to take away from the top.  I used PINE for this, which is really soft wood but it works.  I wonder if the softer nature of the pine helps to insulate the piezo?  I dunno.  I'm happy with it, FINALLY!

Does a piezo need a string ground like a magnetic pup?  It sounds good and not making noise so I'm guess maybe not?

nope 

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

Forum

VIDEO FEATURE: Building a micro shop for the work area challenged

Started by KOOL DOG HOOCH in Feature Articles. Last reply by Shane Speal shanespeal.com 14 hours ago. 15 Replies

Califest cancelled?!

Started by Silent Jim in Fests and Concerts: Organizing and Promoting. Last reply by Richard Sundberg 17 hours ago. 11 Replies

Latest Activity

Dave Lynas posted a video

Chicken Lickin

Minnesota Girl Guitar in D, Hohner’s Special 20 Marine Band Harp in G, Altoids Bead Shaker, Ludwig Hand Drum and the Mose Golly Boys.
1 hour ago
Kevin M. Kraft posted a blog post
3 hours ago
Soap Box Blues commented on Dave Lynas's photo
Thumbnail

Building up the color

"rooster cogburn!"
3 hours ago
Mellowmuso87 replied to Mellowmuso87's discussion Resources for Australian cigar Box guitar builders!
"Cheers Bro! I do love a dumpster dive! got a couple of old smoke alarms for piezos!"
4 hours ago
Mellowmuso87 replied to Mellowmuso87's discussion Resources for Australian cigar Box guitar builders!
"Hey Taff! wow that's an epic drive to grab some strings!  https://cbgemporium.com im…"
4 hours ago
Mellowmuso87 replied to Mellowmuso87's discussion Resources for Australian cigar Box guitar builders!
"Thanks Lads! There is heaps of music shops but nothing parts wise in specifics for CBG's.…"
4 hours ago
Mellowmuso87 and Jeff 'Bones' Reilly are now friends
4 hours ago
Gary W aka Rev. Bluejeans commented on Dave Lynas's photo
Thumbnail

wet Paint

"Sort of a "FrankenChicken" vibe going on there! Love it!"
5 hours ago
Gary W aka Rev. Bluejeans commented on Dave Lynas's photo
Thumbnail

Building up the color

"Dave!  That's wild!  Love it!"
6 hours ago
Jeff 'Bones' Reilly replied to Mellowmuso87's discussion Resources for Australian cigar Box guitar builders!
"Gday Cobba I’m in Hobart welcome to the Nation . If your lucky you can still get old cigar…"
6 hours ago
Taffy Evans replied to Mellowmuso87's discussion Resources for Australian cigar Box guitar builders!
"Hi and welcome, I'm in North Queensland so I buy from Melbourne, Sydney and Brisbane, and from…"
7 hours ago
François replied to James Pobog's discussion The more I use piezos...
"Piezos don't come in many flavors or quality. Disk or linear, big or small, and that's…"
8 hours ago

Music

Loading…

© 2020   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 -->