Replies to This Discussion

Permalink Reply by jawbone on July 19, 2014 at 4:08pm

Throw another one in there along with that one, wired parallel and see if that calms things down. 

• ▶ Reply

Permalink Reply by Richey Kay on July 19, 2014 at 6:18pm

If you can get the disc out again you could try sandwiching it  in something else - such as thin pieces of wood, or, as I have successfully used; a strip of an old silicone mousemat wrapped around the disc. Then glue that to the box lid underside.

Jawbone's suggestion is good too as not only will you get a richer and fuller sound, wiring 2 in parallel will limit the output of both discs.

• ▶ Reply

Permalink Reply by Slowpaw Steve T on July 19, 2014 at 9:44pm

Piezos are sensitive creatures - keeping them well away from speakers, especially on distortion channel, is the simplest solution to feedback, though the Marshall ASD 50D has a feedback defeat switch especially for rod and disc piezos (-:

• ▶ Reply

Permalink Reply by The Capo Kid on July 19, 2014 at 11:17pm

 I've found that 2 piezo's are better , I used a piece of scrap fretboard  drilled 2  30mm x 3mm holes with slots for the wires ,put a small layer of silicon pressed the piezo's into it then covered in silicon and when set fixed them to the back of the neck under the bridge position with the piezo's nearest to the neck , works very well .

• ▶ Reply

Permalink Reply by Michael Fred Johnson on July 20, 2014 at 12:17am

Slice off a piece of kitchen waste pipe and sit it in position,half fill with hot glue,place the disc on top of that then fill to the top with glue,see photo

• ▶ Reply

Permalink Reply by Randy S. Bretz on July 20, 2014 at 12:28am

Instead of the wood try incasing the piezo in leather with double stick tape. That might calm it down some....or better yet go with a rod piezo bridge set up...no feedback !

• ▶ Reply

Permalink Reply by Ron "Oily" Sprague on July 20, 2014 at 9:04pm

I have an Ovation Elite 6-string with a Fishman rod piezo built-in to the saddle. The git has the original onboard OP24 9V-powered preamp. And if you plug it into pretty much ANY amp, crank the amp gain anywhere from 1/2 to full, crank the git's onboard EQ up, and get about 1-3 feet away, directly in front of the amp speaker, the rod piezo WILL feedback.

That's a commercial git. I refuse to dump hot glue or silicon into this git ;-).

• ▶ Reply

Permalink Reply by Randy S. Bretz on July 22, 2014 at 8:41pm

Did you know that Fishman uses a rod that is bare, in other words there`s no protective covering on the rod like the ones I use.   I just bought some of those bare rods and some cable piezo to experiment with.  The bare rods are a lot touchier then the covered ones.

• ▶ Reply

Permalink Reply by John Sawyer on July 20, 2014 at 6:09pm

I've successfully used foam tape.  Heck, for my first CBG's that is all I used: sandwiched it in the double stick foam tape, and stuck it to the lid...   They'll feedback if I crank the gain, but it's manageable.

• ▶ Reply

Permalink Reply by BUGGY (C) on July 22, 2014 at 7:37pm

Face away from the amp and turn it down a bit?

• ▶ Reply

Permalink Reply by Ron "Oily" Sprague on July 24, 2014 at 4:17am

Where's the fun in that?

• ▶ Reply