Reduced feedback. Deeper bass response. And no more "quack!"
We were complaining about all the problems with piezo pickups when the idea for this standalone pre-amp came to me. It's deceptively simple... a $17 acoustic guitar pre-amp with a hacked input becomes a great EQ and signal boost. And it's all housed in a cigar box!
First of all, here's how it sounds...
I built this prototype in less than one hour. Here's how to do it:
PARTS NEEDED:
(*Note: a piezo rod pickup is included with the pre-amp. We'll need this!)
TOOLS NEEDED
Here's a quick overview of the process. We'll get into detail with photos after the video:
STEP 1: Cut a 3.5" x 1.5" hole in the box to fit the pre-amp. You can use a coping saw, carpenters knife or a Dremel rotary tool with a cutting disk.
STEP 2: Drill two 3/8" holes in the box, one for each guitar jack needed.
STEP 3: Take the rod piezo out of the pre-amp packaging. Using wire cutters, cut off the rod piezo pickup from its wire. Cut closest to the pickup, leaving the longest length of wire possible.
STEP 4: Pull back the ground wire sheath to expose the lead wire. Strip off 1/4" of the lead wire's insulation.
STEP 5: Solder the ground sleeve wires to the ground prong (the inner, circular portion of the jack). Solder the lead wire to the other prong (the lead prong) of the jack. This is now our hacked pickup wire and will become the input jack.
STEP 6: Insert the 1/8" plug of the hacked pickup wire into the receptacle of the pre-amp unit.
STEP 7: Install both guitar jacks to the cigar box. I would recommend positioning the hacked wire (Input) on the right side of the layout and the the black plastic jack (Output) on the left side. Also insert the 9 volt battery at this time.
STEP 8: Mark your input and output jacks accordingly. I used a woodburning pen. You could use paint or any other method. (Remember, this pre-amp in the photos is a prototype. My next one will have a cooler layout, better graphics, a carrying handle and feet!)
OPTIONAL- ADD A HIDDEN GUITAR PICK CADDY: If there's extra room in the box, you can glue an Altoids tin to the bottom. I simply used a hot glue gun to attach the bottom of the tin to the inside bottom of the box.
ADDITIONAL NOTES:
Good luck!
-Shane Speal, 2016
Tags:
Good idea Shane.
It would be a good idea to have one in a pedal chain/pedal board too.
Very helpful. Thanks for posting this. I have been kicking around the idea of building a stand alone preamp, and this just cleared up any questions I had.
Is it a standard 1/8 (3.5mm) mono audio TS on the piezo? I'd almost rather get the solder yourself male connector and make up the 1/4 F to 1/8 M cable and use the piezo on the git...
It's always better to install the pre-amp directly in the guitar...however, many of us have CBGs with plain pickups and no pre-amp. This stand-alone unit allows us to properly EQ and boost those older guitars.
What I meant was, instead of cutting the piezo wire, will the pre-amp accept a 1/8" (3.5mm) male end plug?
I have a few ideas rattling around the empty corners of my noggin about saving the piezo intact for something else.
All the ones I had were 2mm not 1/8 inch. They are available from many hobby electric shops. YMMV
Neato and uber sound too. Looks like an awesome bit of kit to confound the muggles even more and enrage purists of the sacred, store-bought axe. I must give this a go. Thanks Shane, and all the best with your online concert too.
Wait'll you see what I did with a beer can...
Started by Rich Butters in Building Secrets, Tips, Advice, Discussion. Last reply by Crazed Fandango 4 hours ago. 1 Reply 0 Likes
Started by Nomad Jack in Performances, How to Play, Lessons, Concerts. Last reply by J. D. Woods yesterday. 7 Replies 2 Likes
Started by Moritz Voegeli in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray on Monday. 6 Replies 2 Likes
Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter Apr 10. 14 Replies 3 Likes
Started by Tom T in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 9. 9 Replies 0 Likes
Started by Southern Ray in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 4. 7 Replies 1 Like
Started by Timothy Hunter in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 27. 1 Reply 2 Likes
Started by Taffy Evans in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 10. 1 Reply 3 Likes
Started by Cigar Box Nation in Feature Articles. Last reply by BrianQ. Mar 9. 4 Replies 3 Likes
Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies 1 Like
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies 0 Likes
Started by Ken I in Building Secrets, Tips, Advice, Discussion. Last reply by Brian partington Mar 8. 8 Replies 0 Likes
Started by Southern Ray in Cool gear discussion - that's not cigar box related. Last reply by Southern Ray Mar 6. 5 Replies 0 Likes
Started by Taffy Evans in Other stuff - off topic, fun stuff, whatever. Last reply by Taffy Evans Mar 5. 4 Replies 2 Likes
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Carl Floyd Mar 1. 15 Replies 0 Likes
Started by Joe in Performances, How to Play, Lessons, Concerts. Last reply by Carl Floyd Feb 29. 13 Replies 0 Likes
Started by Chance in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Feb 22. 12 Replies 1 Like
Started by Cigar Box Nation in Feature Articles. Last reply by Southern Ray Feb 21. 2 Replies 4 Likes
Started by Brad in Cool gear discussion - that's not cigar box related. Last reply by Southern Ray Feb 19. 6 Replies 3 Likes
Started by Jacob Shook in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Feb 16. 10 Replies 0 Likes
Posted by Vlad on March 31, 2024 at 11:48pm 0 Comments 1 Like
Posted by Vlad on March 6, 2024 at 2:32am 5 Comments 2 Likes
Posted by billy jones bluez on February 28, 2024 at 2:09pm 0 Comments 0 Likes
Posted by billy jones bluez on February 17, 2024 at 11:00pm 0 Comments 0 Likes
Posted by Vlad on February 11, 2024 at 1:06am 1 Comment 1 Like
May 11, 2024 from 11am to 8pm – Speakeasy Grill
0 Comments 0 Likes© 2024 Created by Ben "C. B. Gitty" Baker. Powered by
Cigar Box Nation is presented by C. B. Gitty Crafter Supply, your one-stop-shop for Cigar Box Guitar parts and accessories!