1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  

choosing piezos

Discussion in 'Pickups & Electronics [BG]' started by anonymous278347457, Mar 23, 2006.

  1. anonymous278347457

    anonymous278347457 Guest

    Feb 12, 2005
  2. I'm playing with some that are similar. Come in a package of 10 for $4 at my local electronics store. I'm using them for an archtop project [acoustic] but have tacked them to my solid bodies [bass as well] and they seem to work great. Trickiest part is where to place them - you just have to experiment until you get it right. I tried 1 by itself then 2 in series and parallel. They react like speakers - 2 in series was too hot and started distorting. 1 was kinda nasaly. 2 in parallel sounds best so far but I have not tried more than that yet.
  3. fender_mod


    Jun 23, 2005
    do you wire those into volume and tone pots in a solid body or just a direct output?
  4. I tried wiring them to pots then out, but the signal got real noisey and the pots didn't do much. On the archtop I'm running them to a Fishman Powerjack which has a built-in preamp, then to the pots and then out. Works great with the preamp and I find piezo's definitely need some tone tweakability. I find there isn't a whole lot of difference in sound going straight out or through the Fishman other than the ability to adjust volume and tone. For a solid-body I'm thinking of putting the piezo's under the pickups mounted to the body then to a pre-amp and then out. I tried a quick under the bridge setup, but the sound wasn't as good as just mounting them to the body. As I said, placement appears to be the key to good sound. There are a few schematics around for real simple JFET piezo buffer/pre's that look like they'll do the trick.
  5. fender_mod


    Jun 23, 2005
    the preamp idea sounds like it would be a cool thing to do, i think ive seen them on ebay for around 60$, could be a project worth considering
  6. You don't have to spend that much. The Fishman Powerjack was around $28 at Music123 [open stock but who cares]. All it is is a JFET preamp in an endpin jack nicely packaged. The powerjack allows 2 different pickups - one that goes to the preamp (the piezo) and the other that it passes through (humbucker/mag) giving you a stereo feed out of the guitar. Since I needed an endpin jack for my archtop anyway and I'm putting in a floating humbucker along with the piezo it is a real slick way to go.

    Do a google on preamps and you'll find ton's of them. If you know your way around a soldering iron the parts are cheap and the circuits are really simple. Here's a few to get you started:


    These are my faves:


    I really like the idea of the preamp in the cable for applications where you don't have room in the guitar. The Mint-box-buffer looks like a slick circuit and the guy will even sell you one pre-built for around $20.

    This isn't rocket-science. All you need to do is some impedance matching and buffering and let the piezo's do the rest. Once I get the archtop done I'm going to put a bunch of piezo's inside the body of my Dano double-neck. I would do my bass but I'm so happy with the tone of my Q-Tuners I don't really see the point.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.